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"Astragalinus mexicanus. Mexican Goldfinch. The upper parts continuously-black, and the black of the crown extending below the eyes, enclosing the olive under eyelid. Mexican border and southward. This bird looks quite unlike typical psaltria, but the gradation through var. arizonae is perfect; and mexicana, moreover, leads directly into var. columbiana, a Central American form in which the tail-spots are very small or wanting. The females of these several varieties cannot by distinguished with certainty." Elliot Coues, 1884

Mexican Goldfinch

"Astragalinus mexicanus. Mexican Goldfinch. The upper parts continuously-black, and the black of the…

The Eastern Meadowlark, Sturnella magna, is a medium-sized icterid bird, very similar in appearance to the Western Meadowlark. It occurs from eastern North America to South America, where it is also most widespread in the east. Adults have yellow underparts with a black "V" on the breast and white flanks with black streaks. The upperparts are mainly brown with black streaks. They have a long pointed bill; the head is striped with light brown and black. The song of this bird is simpler and not warbled like that of the Western Meadowlark; their ranges overlap across central North America. In the field, the song is often the easiest way to tell the two species apart.

Eastern Meadowlark

The Eastern Meadowlark, Sturnella magna, is a medium-sized icterid bird, very similar in appearance…

"Pooecetes gramineus. Grass Finch. Bay-winged Bunting. Vesper-bird. Above, grayish-brown, closely and uniformly marked with dusky-centered brown-edged streaks, and further variegated by pale gray edging of the feathers. Crown quite like back, though the marking is in smaller pattern; superciliary line and eye-ring whitish. Under parts dull white, usually noticeably buff-tinged in the streaked areas, thickly streaked across breast and along sides with dusky-centered brown-edged streaks, anteriorly tending to concentrate in lateral chains bounding the white throat; above this chain a maxillary brown stripe; auriculars varied with light and dark brown. Quills fuscous, the longer ones with grayish-white edging, the secondaries and greater and median coverts with broad firm brown and white edges and tips; lesser coverts bright chestnut, whence the name "bay-winged". Outer-feather largely or wholly white, next pair or two airs largely white in decreasing amount. Upper mandible brown; lower, and the feet, flash-colored or yellowish." Elliot Coues, 1884

Bay-winged Bunting

"Pooecetes gramineus. Grass Finch. Bay-winged Bunting. Vesper-bird. Above, grayish-brown, closely and…

"Ammodramus. Seaside Sparrow. Bill remarkably slender and lengthened for this family, with culmen toward end, gonys straight, and sometimes an evident lobation of the cutting edge of the upper mandible. Wings short and rounded, yet longer than tail; inner secondaries, though not elongate, reaching nearly to end of primaries when wing is closed; point formed by 2d-4th quills. Feet large and stout, reaching outstretched about to the end of tail; tarsus about equal to middle toe and claw in length; lateral toes of equal lengths, very short, their claws under reaching base of middle claw. Tail shorter or not longer than wings, much rounded, of narrow, stiffish, sharp-pointed feathers. Embracing small streaky marsh sparrows, especially of the sea-coast, but not exclusively maritime, as long supposed; remarkable for slenderness of the bill, sharp narrow tail-feathers, and stout feet fitted for grasping slender swaying reeds. Edge of wing bright yellow; a yellow spot of buff stripe on head; upper parts olive-gray or quite blackish, streaky." Elliot Coues, 1884

The Details of a Seaside Sparrow

"Ammodramus. Seaside Sparrow. Bill remarkably slender and lengthened for this family, with culmen toward…

"Junco hiemalis. Eastern Snow-bird. Black Snow-bird. Blackish-ash, below abruptly pure white from the breast, the sides shaded with ashy. In the summer, and most fall and winter specimens, the upper parts have a more grayish, or even a decidedly brownish, cast, and the inner secondaries are edged with pale bay. The slaty-black intense on the head; belly and crissum pure white, the line between the two transverse or convex forward; wings and tail blackish, with slightly hoary edging of some feathers; 2-3 lateral tail feathers pure white, wholly or in great part. No rusty brown on back or sides; any shade on the sides ashy, not pinkish. Bill pinkish-white, or flesh-color, usually black-tipped." Elliot Coues, 1884

Eastern Snow-bird

"Junco hiemalis. Eastern Snow-bird. Black Snow-bird. Blackish-ash, below abruptly pure white from the…

"Spizella domestica. Chipping Sparrow. Chipping Bird or Chippy. Hair-bird. Bill black; feet pale; crown chestnut; extreme forehead black, usually divided by a pale line; a grayish-white superciliary line; below this a blackish stripe through eye and auriculars; lores dusky. Below, a variable shade of pale ash, nearly uniform and entirely unmarked; back streaked with lack, dull bay and grayish-brown; inner secondaries and wing-coverts similarly variegated, the tips of the greater and median coverts forming whitish bars; rump ashy, with slight blackish streaks or none; primaries and tail-feathers dusky, with paler edges." Elliot Coues,1884

Chipping Sparrow Head

"Spizella domestica. Chipping Sparrow. Chipping Bird or Chippy. Hair-bird. Bill black; feet pale; crown…

"Spizella domestica. Chipping Sparrow. Chipping Bird or Chippy. Hair-bird. Bill black; feet pale; crown chestnut; extreme forehead black, usually divided by a pale line; a grayish-white superciliary line; below this a blackish stripe through eye and auriculars; lores dusky. Below, a variable shade of pale ash, nearly uniform and entirely unmarked; back streaked with lack, dull bay and grayish-brown; inner secondaries and wing-coverts similarly variegated, the tips of the greater and median coverts forming whitish bars; rump ashy, with slight blackish streaks or none; primaries and tail-feathers dusky, with paler edges." Elliot Coues,1884

Chipping Sparrow

"Spizella domestica. Chipping Sparrow. Chipping Bird or Chippy. Hair-bird. Bill black; feet pale; crown…

"Zonotrichia albicollis. White-throated Crown Sparrow. Peabody-bird. Crown black divided by a median white stripe, bounded by a white superciliary line, and yellow spot from nostril to eye; below this a black stripe through eye; below this a maxillary black stripe bounding the definitely pure white throat, sharply contrasted with the dark ash of the breast and sides of the neck and head. Edge of wing yellow. back continuously streaked with black, chestnut, and fulvous-white; rump ashy, unmarked. wings much edged with bay, the white tips of the median and greater coverts forming two conspicuous bars; quills and tail-feathers dusky, with pale edges. Below, white, shaded with ashy-brown on sides, the ash deeper and purer on the breast; bill dark; feet pale." Elliot Coues, 1884

White-throated Sparrow Head

"Zonotrichia albicollis. White-throated Crown Sparrow. Peabody-bird. Crown black divided by a median…

"Zonotrichia albicollis. White-throated Crown Sparrow. Peabody-bird. Crown black divided by a median white stripe, bounded by a white superciliary line, and yellow spot from nostril to eye; below this a black stripe through eye; below this a maxillary black stripe bounding the definitely pure white throat, sharply contrasted with the dark ash of the breast and sides of the neck and head. Edge of wing yellow. back continuously streaked with black, chestnut, and fulvous-white; rump ashy, unmarked. wings much edged with bay, the white tips of the median and greater coverts forming two conspicuous bars; quills and tail-feathers dusky, with pale edges. Below, white, shaded with ashy-brown on sides, the ash deeper and purer on the breast; bill dark; feet pale." Elliot Coues, 1884

White-throated Sparrow

"Zonotrichia albicollis. White-throated Crown Sparrow. Peabody-bird. Crown black divided by a median…

The Boat-billed Flycatcher, Megarynchus pitangua, is a passerine bird. It is a large tyrant flycatcher, the only member, monotypic, of the genus Megarynchus. It breeds in open woodland with some tall trees from Mexico south to Bolivia and Argentina, and on Trinidad. The nest, built by the female, is an open saucer of sticks. The typical clutch is two or three whitish eggs heavily blotched with brown. These are incubated mostly by the female for 17-18 days with a further 24 days to fledging.

Boat-billed Flycatcher

The Boat-billed Flycatcher, Megarynchus pitangua, is a passerine bird. It is a large tyrant flycatcher,…

The megapodes, also known as incubator birds or mound-builders, are stocky, medium-large chicken-like birds with small heads and large feet in the family Megapodiidae. Their name literally means large foot and is a reference to the heavy legs and feet typical of these terrestrial birds. All are browsers, all but the Malleefowl occupy wooded habitats, and most are brown or black colored. Megapodes are superprecocial, hatching from their eggs in the most mature condition of any birds. They hatch with open eyes, with bodily coordination and strength, with full wing feathers and downy body feathers, able to run, pursue prey, and, in some species, fly on the same day they hatch.

Mound-builders

The megapodes, also known as incubator birds or mound-builders, are stocky, medium-large chicken-like…

The Red-headed Woodpecker, Melanerpes erythrocephalus, is a small or medium-sized woodpecker from temperate North America. Their breeding habitat is open country across southern Canada and the eastern-central United States.

Red-Headed Woodpecker

The Red-headed Woodpecker, Melanerpes erythrocephalus, is a small or medium-sized woodpecker from temperate…

An illustration of a chanting hawk.

Chanting Hawk

An illustration of a chanting hawk.

The Dartford Warbler, Sylvia undata, is a typical warbler from the warmer parts of western Europe, and northwestern Africa. Its breeding range lies west of a line from southern England to the heel of Italy (southern Apulia). The Dartford Warbler is usually resident all-year in its breeding range, but there is some limited migration.

Dartford Warbler

The Dartford Warbler, Sylvia undata, is a typical warbler from the warmer parts of western Europe, and…

The White-winged Dove (Zenaida asiatica) is a dove whose native range extends from the south-western USA through Mexico and the Caribbean. It has also been introduced to Florida. Most populations of White-winged Doves are migratory, wintering in Mexico and Central America.

White-Winged Dove

The White-winged Dove (Zenaida asiatica) is a dove whose native range extends from the south-western…

"Zamelodia. Song Grosbeak. Bill extremely heavy, with the lower mandible as deep as the upper or deeper, the commissural angle strong, far in advance of the feathered base of the bill, the rictus overhung with a few long stiff bristles. Wing with outer 4 primaries abruptly longer than 5th. Tail shorter than wing, even or scarcely rounded. Feet short and stout. Embracing two larger species, of beautiful and striking colors, the sexes dissimilar. Male black and white, with carmine-red or orange-brown; Female otherwise, but with lining of wings yellow. Brilliant songsters; nest in trees and bushes; eggs spotted." Elliot Coues, 1884

Song Grosbeak Bill

"Zamelodia. Song Grosbeak. Bill extremely heavy, with the lower mandible as deep as the upper or deeper,…

"Guiraca. Blue Grosbeak. Bill Commissure strongly angulated far beyond base, with deep under mandible and bristly rictus as in Zamelodia, but not so swollen, the culmen nearly straight. Wings long and pointed, folding about the middle of the tail; tip formed be the 2d-4th quills, 1st little shorter, 5th rapidly graduated. Tail shorter than wings, even. Tarsus rather less than middle toe and claw; outer lateral toe slightly longer than the inner, but scarcely reaching base of middle claw. One species, large, male blue, female brown." Elliot Coues, 1884

Blue Grosbeak Bill

"Guiraca. Blue Grosbeak. Bill Commissure strongly angulated far beyond base, with deep under mandible…

"Fig. 52 shows the totipalmate foot of a pelican. The totipalmate is a special case of palmation, in which all four toes are webbed; this characterizes the whole order Steganopodes." Elliot Coues, 1884

Pelican Foot

"Fig. 52 shows the totipalmate foot of a pelican. The totipalmate is a special case of palmation, in…

"Fig. 53 shows the lobate foot of a coot. In the lobate foot, a paddle results not from connecting webs, but from a series of lobes or flaps along the sides of the individual toes; as in the coots, grebes, phalaropes, and sun-birds. Lobation is usually associated with semipalmation, as is well seen in the grebes (Podicipedidae). In the snipe-like pharalopes (Phalaropodidae), lobation is present as a modification of a foot otherwise quite cursorial. The most emphatic cases of lobation are those in which each joint of the toes has its own flap, with a free convex border; the membranes as whole therefore present a scolloped outline." Elliot Coues, 1884

Coot Foot

"Fig. 53 shows the lobate foot of a coot. In the lobate foot, a paddle results not from connecting webs,…

"Fig. 53 bis - shows the lobate foot of a phalarope. In the lobate foot, a paddle results not from connecting webs, but from a series of lobes or flaps along the sides of the individual toes; as in the coots, grebes, phalaropes, and sun-birds. Lobation is usually associated with semipalmation, as is well seen in the grebes (Podicipedidae). In the snipe-like pharalopes (Phalaropodidae), lobation is present as a modification of a foot otherwise quite cursorial. The most emphatic cases of lobation are those in which each joint of the toes has its own flap, with a free convex border; the membranes as whole therefore present a scolloped outline." Elliot Coues, 1884

Phalarope Foot

"Fig. 53 bis - shows the lobate foot of a phalarope. In the lobate foot, a paddle results not from connecting…

"Fig. 62 Skull of common fowl, enlarged. from nature by Dr. R.W. Shufeldt, U.S.A. The names of bones and some other parts are printed, requiring no explanation; but observe the following points: The distinction of none of the bones composing the brain-case (the upper back expanded part) can be found in a mature skull. The brain is contained between the occipital, sphenoidals, squamosals, parietals and part of frontal; the ethmoidals belong to the same group of cranial bones proper. All other bones, excepting the three otic ear-bones, are bones of the face and jaws. The lower jaw, of five bones, is drawn detached; it articulates by the black surface marked articular with the prominence just above- the quadratic bone. Observe that from this quadrate a series of bones quadrato-jugal, jugal, maxillary-makes a slender rod running to the premaxillary; this is the zygoma, or jugal bar. Observe from the quadrate also another series, composed of pterygoid and palatine bones, to the premaxillary; this is the pterygo-palatine bar; it slides along a median fixed axis of the skull, the rostrum, which bears the loose vomer at its end. The under mandible, quadrate, pterygoid, and vomer are the only movable bones of this skull. But when the quadrate rocks back and forth, as it does by its upper joint, its lower end pulls and pushes upon the upper mandible, by means of the jugal and pterygo-palatine bars, setting the whole scaffolding of the upper jaw in motion. This motion hinges upon the elasticity of the bones of the forehead, at the thin place just where the reference-lines from the words "lacrymal" and "mesethmoid" cross each other. The dark oval space behind the quadrate is the external orifice of the ear; the parts in it to which the three reference-lines go are diagrammatic, not actual representations; thus, the quadrate articulates with a large pro-otic as well as with the squamosal. The great excavation at the middle of the figure, containing the cirlet of the unshaded bones, is the left orbital cavity, orbit, or socket of the eye. The mesethmoid includes most of the background of this cavity, shaded diagonally. The upper one of the two processes of bone extending into it from behind is post-frontal or sphenotic process; the under one (just over the quadrate) is the squamosal process. A bone not shown, the presphenoid, lies just in front of the oval black space over the end of basisphenoid. This black oval is the optic foramen, through which the nerve of sight passes from the brain-cavity to the eye. The black dot a little behind the optic foramen is the orifice of exit of a part of the trifacial nerve. The black mark under the letters "on" of the word "frontal" is the olfactory foramen, where the nerve of smell emerges from the brain-box to go to the nose. The nasal cavity is the black space behind nasal and covered by that bone, and in the oval blank before it. The parts of the beak covered by horn are only premaxillary, nasal, and dentary. The condyle articulates with the first cervical vertebra; just above it, not shown, is the foramen magnum, or great hole through which the spinal medulla, or main nervous cord, passes from the spinal column. The basioccipital is hidden, excepting its condyle; so is much of the basisphenoid. The prolongation forward of the basisphenoid, marked "rostrum," and bearing the vomer at its end, is the parasphenoid, as far as its thickened under border is concerned. Between the fore end of the pterygoid and the basisphenoidal rostrum, is the site of the basipterygoid process, by which the bones concerned articulate by smooth facets; further forward, the palatines ride freely upon the parasphenoidal rostrum. In any passerine bird , the vomer would be thick in front, and forked behind, riding like the palatine upon the rostrum. The palatine seems to run into the maxillary in this view; but it continues on to premaxillary. The maxillo-palatine is an important bone which cannot be seen in the figure because it extends horizontally into the paper from the maxillary about where the reference life "maxillary" goes to that bone. The general line from the condyle to the end of the vomer is the cranial axis, basis cranii, or base of the cranium. This skull is widest across the post-frontal; next most so across the bulge of the jugal bar." Elliot Coues, 1884

Skull of a Common Fowl

"Fig. 62 Skull of common fowl, enlarged. from nature by Dr. R.W. Shufeldt, U.S.A. The names of bones…

"Passerina cyanea. Indigo Painted Finch. Indigo-bird. Adult male: Indigo-blue, intense and constant on the head, glancing greenish with different lights on other parts; wings and tail blackish, glossed with greenish-blue; feathers around base of the bill black; bill dark above, rather paler below, with a curious black stripe along the gonys. Female: Above , plain warm brown, below whitey-brown, obsoletely streaky on the breast and sides; wing-coverts and inner quills pale-edged, but not whitish; no whitish wing-bars; upper mandible blackish, lower pale, with the black stripe just mentioned, - this is pretty constant feature, and will distinguish the species from any of our Eastern little brown birds." Elliot Coues, 1884

Indigo-bird

"Passerina cyanea. Indigo Painted Finch. Indigo-bird. Adult male: Indigo-blue, intense and constant…

"Cardinalis virginianus. Cardinal Grosbeak. Cardinal Red-bird. Virginia Nightinggale. male, adult: Rich red, usually vermillion, sometimes rosy; pure and intense on crest and under parts, darker on back, where obscured with ashy-gray, as it is also on upper surfaces of wings and tail; the feathers of the wings fuscous on inner webs. A jet-black mask on the face, entirely surrounding the bill, extending on the throat. Bill coral-colored; feet brown." Elliot Coues, 1884

Cardinal Grosbeak

"Cardinalis virginianus. Cardinal Grosbeak. Cardinal Red-bird. Virginia Nightinggale. male, adult: Rich…

A Rose-breasted Grosbeak (lower) and a Northern Cardinal (upper) sit on branches among the flowers. "Zamelodia ludoviciana. Rose-breasted Song Grosbeak. Adult male with the head and neck all around and most of the upper parts black, the rump, upper tail-coverts and under parts white, the breast and under wing-coverts exquisite carmine rose-red; wings and tail black, variegated with white; bill white; feet grayish-blue; iris brown. Female above, streaked with blackish and olive-brown or flaxen-brown, with median white coronal and superciliary line; below, white, more or less tinged with fulvous and streaked with dusky; under wing-coverts saffron-yellow; upper coverts and inner quills with a white spot at end; bill brown." "Cardinalis virginianus. Cardinal Grosbeak. Cardinal Red-bird. Virginia Nightinggale. male, adult: Rich red, usually vermillion, sometimes rosy; pure and intense on crest and under parts, darker on back, where obscured with ashy-gray, as it is also on upper surfaces of wings and tail; the feathers of the wings fuscous on inner webs. A jet-black mask on the face, entirely surrounding the bill, extending on the throat. Bill coral-colored; feet brown." Elliot Coues, 1884

A Northern Cardinal and a Rose-breasted Grosbeak Sitting on a Branch Among the Flowers

A Rose-breasted Grosbeak (lower) and a Northern Cardinal (upper) sit on branches among the flowers.…

"Dolichonyx oryzivorus. Bobolink. Meadow-wink. Skunk Blackbird (Northern States), Reed-bird (Middle States), Rice-bird (Southern States). Male, in breeding plumage: Black; cervix buff; scapulars, rump and upper tail-coverts ashy-white; interscapulars streaked with black, buff, and ashy; outer quills edged with yellowish; bill blackish-horn; feet brown. The faultless full dress of black, white, and buff is worn only for a brief period; and even in spring and summer, most males are found to have yellowish touches in the black, especially of the under parts. The "delirious song" is only heard while the males re trooping their way to their breeding-grounds, and before the midsummer change of feather." Elliot Coues, 1884

Bobolink

"Dolichonyx oryzivorus. Bobolink. Meadow-wink. Skunk Blackbird (Northern States), Reed-bird (Middle…

"Quiscalus. Grackle. The feet are large and strong, and the birds spend much of their time on the ground, where they walk or run instead of advancing by leaps." Elliot Coues, 1884

Grackle Foot

"Quiscalus. Grackle. The feet are large and strong, and the birds spend much of their time on the ground,…

"Perisoreus canadensis. Canada Jay. Whiskey Jack. Moose-bird. Gray whitening on head, neck, and breast; a dark cap on hind and nape, separated by a gray cervical collar from ashy-plumbeous back; wings and tail plumbeous, the feathers obscurely tipped with whitish. Bill and feet black." Elliot Coues, 1884

Canada Jay

"Perisoreus canadensis. Canada Jay. Whiskey Jack. Moose-bird. Gray whitening on head, neck, and breast;…

"Pitangus derbianus. Derby Flycatcher. Under parts light wood-brown, with an olive tinge; wings and tail the same, but the feathers extensively bordered without and within with chestnut, forming a conspicuous continuous area on the wing-quills in the closed wing, and on most of the wing and tail-feathers more extensively than the brown portion of the inner webs. Below from the breast, including lining of wings, clear and continuous lemon-yellow. Whole chin and throat pure white, widening behind up under ear-coverts. Top and sides of head black, a circle of white from forehead over eyes to nape white, the enclosed black enclosing black a lemon and orange patch. Or, middle of crown yellow and orange, enclosed and partly concealed in black, this black enclosed in white, then the long and broad black bar on side of head, separating the white of side of crown from that of side of throat. The coronal feathers lengthened and erectile as in a king-bird, or more so; crown-patch of same character but more extensive. Bill and feet black; iris hazel Sexes alike." Elliot Coues, 1884

Derby Flycatcher

"Pitangus derbianus. Derby Flycatcher. Under parts light wood-brown, with an olive tinge; wings and…

"Milvulus forficatus. Swallow-tailed Flycatcher. Scissor-tail. Crown patch orange or scarlet. General color hoary-ash, paler or white below; sides at insertion of wings scarlet or bloody-red, and other parts of the body variously tinged with the same, or a paler salmon-red. Wings blackish, with whitish edgings. Tail black, but several of the long feathers extensively white or rosy; these are narrow and linear, sometimes widening somewhat in spoon-shape." Elliot Coues, 1884

Swallow-tailed Flycatcher

"Milvulus forficatus. Swallow-tailed Flycatcher. Scissor-tail. Crown patch orange or scarlet. General…

Tyrannus carolinensis. King-bird. Bee-martin. No olive nor decided yellow. Only outer primaries obviously emarginate. Tail nearly even - if anything a little rounded. Blackish-ash, still darker or quite black on head, crown with a flaming spot. Below, pure white, the breast shaded with plumbeous. Wings dusky, with much whitish edging. Tail black, broadly and sharply tipped with white, the outer feather sometimes edged with the same. Bill and feet black." Elliot Coues, 1884

King-bird

Tyrannus carolinensis. King-bird. Bee-martin. No olive nor decided yellow. Only outer primaries obviously…

"Myiarchus crinitus. Great Crested Flycatcher. Decidedly olivaceous above, a little browner on head, where the feathers have dark centres; throat and fore pure dark ash; rest of under parts bright yellow, the two colors meeting abruptly; primaries margined on both edges with chestnut; secondaries and coverts edges and tipped with yellowish-white; tail with all the feathers but the central pair chestnut on the whole of the inner web (excepting perhaps a very narrow space next the shaft); outer web of outer feathers with yellowish; middle feathers, outer webs of the rest, and wings except as stated, dusky-brown. The foregoing phrases are intended to be chiefly antithetical to those used in describing cinerescens, below, No. 375. Other diagnostic points are: bill dark but not quite black, pale at base below; stout and comparatively short, hardly or not as long as tarsus, the latter perhaps never .90, the olive back, ash throat, and yellow belly severally pure in color; all tail-feathers but middle pair so extensively rufous on inner webs that a mere line, if any, of fuscous persists next the shaft (compare erythrocercus and cooperi), and this fuscous line,if any, running of same narrowness to ends of the feathers (compare cinerescens); never more than a trace of rufous on outer webs." Elliot Coues, 1884

Great Crested Flycatcher

"Myiarchus crinitus. Great Crested Flycatcher. Decidedly olivaceous above, a little browner on head,…

"Chaetura pelasgica. Chimney Swift. Chimney "Swallow". Sooty-brown, with a faint greenish gloss above; below paler, becoming gray on the throat; wings black; a velvety black space about eyes." Elliot Coues, 1884

Chimney Swift Head and Feather

"Chaetura pelasgica. Chimney Swift. Chimney "Swallow". Sooty-brown, with a faint greenish gloss above;…

"Fig 63 - Skull of a duck (Clangula islandica), nat. size; Dr. R.W. Shufeldt, U.S.A. a, premaxillary bone; b, partly ossified internasal septum; b', pervious part of nostril; c, end of premaxillary, perforated form numerous branches of second division of the fifth cranial nerve; d, dentary bone of under mandible; e, groove of nerves, etc.; f, a vacuity between dentary and other pieces of the mandible; g, articular surface; h, recurved "angle of the jaw;" i, occipital protuberance; j, vacuity in supraoccipital bone; k, muscular impression on back of skull; l is over the black ear-cavity; m, post-frontal process; n, quadrate bone; o, pterygoid; p, palatine; q, quadrato-jugal; r, jugal; s, maxillary; t, fronto-parietal dome of the brain-cavity; u; u, the lacrymal bone, immense in a duck, nearly completing rim of the orbit by approaching m; v, vomer; w, supra-orbital depression for the nasal gland; x, cranio-facial hinge; y, optic foramen; z, etc. interorbital vacuities." Elliot Coues, 1884

Duck Skull

"Fig 63 - Skull of a duck (Clangula islandica), nat. size; Dr. R.W. Shufeldt, U.S.A. a, premaxillary…

"Fig 72 - Hyoid bones of a goose, nat. size; Dr. R.W. Shufeldt, U.S.A. a, cartilaginous end-piece of b, the great glosso-hyal, which has absorbed or replaced cerato-hyals or "lesser cornua"; c, basihyal, movably articulated with b, and combined completely with d, basibranchial, commonly called "urohyal;" e, ceratobranchial: f, epibranchial; e and f are together known as " thyrohayals," or "greater cornua." Elliot Coues, 1884

Goose Hyoid

"Fig 72 - Hyoid bones of a goose, nat. size; Dr. R.W. Shufeldt, U.S.A. a, cartilaginous end-piece of…

"Trochilus colubris. Ruby-throated Humming-bird. Tail forked, its feathers all narrow and pointed; no scales on crown; metallic gorget reflecting ruby-red. Above, golden-green; below, white, the sides green; wings and tail dusky-purplish. Female: Lacking gorget; throat white, speckled with dusky; tail double rounded, the central feathers shorter than the next, the lateral then graduated; all broader than in males to near the end, then rapidly narrowing with concave inner margin; tail with black bars, and the lateral feathers white-tipped; no rufous on tail in either sex." Elliot Coues, 1884

Ruby-throated Humming-bird

"Trochilus colubris. Ruby-throated Humming-bird. Tail forked, its feathers all narrow and pointed; no…

Alcedo Ispida. European Kingfisher. Small bird, upper parts blue-green; under parts orange; rump and back azure-blue head large; rufous patch on ear; stripe on neck blue-green; bill long and black with some red at base; short tail.

Common Kingfisher

Alcedo Ispida. European Kingfisher. Small bird, upper parts blue-green; under parts orange; rump and…

This Old World bird's plumage is gray or brown. They have a long tail, strong legs, and a slim body.

Common Cuckoo

This Old World bird's plumage is gray or brown. They have a long tail, strong legs, and a slim body.

Th Sirens Three is a fairy tale about three bird women that lived on an island. This is an illustration about the fairy tale that was created by English artist Walter Crane in 1886.

The Sirens Three

Th Sirens Three is a fairy tale about three bird women that lived on an island. This is an illustration…

"Aluco flammeus pratincola. Barn Owl. above, including upper surfaces of wings and tail, tawny, fulvous, or orange-brown delicately clouded or marbled with ashy and white, and dotted with blackish, sometimes also with white; suck marking resolved, or tending to resolve, into four or five bars of dark mottling on the wings and tail. below, including lining of wings, varying from pure white to tawny, ochrey, or fulvous, but usually paler than the upper parts and dotted with small but distinct blackish specks. Face varying from white to fulvous or purplish-brown, in some shades as if stained with claret, usually quite dark or even black. About the eyes, and the border of the disc, dark brown. Thus extremely variable in tone of coloration, but the pattern more constant, while the generic characters render the bird unmistakable. Nestlings are covered with fluffy white down." Elliot Coues, 1884

Small Barn Owls

"Aluco flammeus pratincola. Barn Owl. above, including upper surfaces of wings and tail, tawny, fulvous,…

"Speotyto. Burrowing Owls. tarsi long, about twice as long as the middle toe without its claw, very scant-feathered in front, bare behind; toes bristly. The long slim legs are quite peculiar.

The Beaks and Claws of a Burrowing Owl

"Speotyto. Burrowing Owls. tarsi long, about twice as long as the middle toe without its claw, very…

"Aluco flammeus pratincola. Barn Owl. above, including upper surfaces of wings and tail, tawny, fulvous, or orange-brown delicately clouded or marbled with ashy and white, and dotted with blackish, sometimes also with white; suck marking resolved, or tending to resolve, into four or five bars of dark mottling on the wings and tail. below, including lining of wings, varying from pure white to tawny, ochrey, or fulvous, but usually paler than the upper parts and dotted with small but distinct blackish specks. Face varying from white to fulvous or purplish-brown, in some shades as if stained with claret, usually quite dark or even black. About the eyes, and the border of the disc, dark brown. Thus extremely variable in tone of coloration, but the pattern more constant, while the generic characters render the bird unmistakable. Nestlings are covered with fluffy white down." Elliot Coues, 1884

Barn Owls

"Aluco flammeus pratincola. Barn Owl. above, including upper surfaces of wings and tail, tawny, fulvous,…

"Circus cyaneus hudsonius. American Marsh Hawk, Harrier. Blue hawk. Adult Male: In perfect plumage pale pearly-bluish, or bluish-ash, above, with the upper tail-coverts entirely pure white; but most specimens have a dusky wash obscuring the bluish, and retain traces of brown or rufous. Five outer primaries mostly blackish, all of them and the secondaries with large white basal areas on inner webs; tail-feathers banded with 5 or 6 obscure dusky bars, the terminal one strongest and most distinct, and marbled with white toward their bases. The bluish cast invades the fore under parts, the rest of which are white, with sparse drop-shaped rufous spots; lining of wings white. From this blue-and-white state the bird is found grading by degrees into the very different plumage of the female and young: Above, dark umber-brown, everywhere more or less varied with reddish-brown or yellowish-brown, the upper tail-coverts, however, white, forming a very conspicuous mark; under parts a variable shade of brownish-yellow, or ochraceous, streaked with umber-brown, at least on breast and sides; tail crossed with 6-7 blackish bars." Elliot Coues, 1884

Marsh Hawk

"Circus cyaneus hudsonius. American Marsh Hawk, Harrier. Blue hawk. Adult Male: In perfect plumage pale…

"Circinae. Harriers. Face surrounded with an incomplete ruff (as in most owls); orifice of ear about as large as the eye, and in some cases at least with a decided conch (in this picture). Bill rather weak, not toothed or notched. Bill thickly beset with many curved radiating bristles surpassing in length the cere, which is large and tumid; tomia lobed or festooned, but neither toothed nor notched. Nostrils ovate-oblong, nearly horizontal. Superciliary shield prominent. Tarsus long and slender, scutellate before and mostly so behind, reticulate laterally; toes slender, the middle with its claw much shorter than the tarsus; a basal web between the outer and middle; all tuberculate underneath; Claws very large and sharp, much curved. Wings very long and ample; 3d and 4th quills longest; 1st shorter than 6th; outer 3-5 (in our species 4) emarginate on inner webs; 2d-5th emarginate on outer webs. Tail very long, about 2/3rds as long as the wing, nearly even or rounded, the folded wings falling short of its end. " Elliot, Coues, 1884

Harrier Ear Parts

"Circinae. Harriers. Face surrounded with an incomplete ruff (as in most owls); orifice of ear about…

"Ideal plan of the double-ringed body of a vertebrate. N, neural canal; H, haemal canal; the body separating them is the centrum of any vertebra, bearing e, and epapophysis, and y, a hypapophysis; n, n, neurapophyses; d, d, diapophyses; ns, bifid neural spine; pl, pl, pleurapophyses; h, h, haemapophyses; hs, bifid haemal spine. Drawn by Dr. R. W. Shufeldt, USA, After Owen. The Axial Skeleton of a bird or any vertebrated animal, that is, one having a back-bone, exhibits in cross-section two rings or hoops, one above and the other below a central point, like the upper and lower loops of a figure 8. The upper ring is the neural arch, so called because such cylinder encloses a section of the cerebro-spinal axis, or principal nervous system of a vertebrate (brain and spinal cord, whence arise all the nerves of the body, excepting those of the sympathetic nervous system). The lower ring is the haema arch, which similarly contains a section of the principal blood vessals and viscera.

Axial Skeleton

"Ideal plan of the double-ringed body of a vertebrate. N, neural canal; H, haemal canal; the body separating…

"Fig 55. - Actual section of the body in the thoracic region of a bird. N, neural canal; H, haemal canal; c, centrum of a dorsal vertebra; hy, hypapophysis; d, diapophysis; z, zygapophysis; ns, neural spine; r, pleurapophysis, or vertebral part of a free rib, bearing u, uncinate process or epipleura; cr, haemapophyses; or sternal part of the same; st, section of the sternum or breast-bone (haemal spine). Designed by Dr. R. W. Shufeldt, USA. This figure shows such a section, made across the thoracic or chest-region of the trunk. Here the upper ring (neural) is contracted, only surrounding the slender spinal cord, while the lower ring is expanded to enclose the heart and lungs." Elliot Coues, 1884

The Axial Skeleton

"Fig 55. - Actual section of the body in the thoracic region of a bird. N, neural canal; H, haemal canal;…

"Falco peregrinus. Peregrine Falcon. Duck Hawk. Great-footed Hawk. A medium-sized falcon, about as large as the foregoing, but known at a glance from any bird of N. Am. by the slaty-plumbeous or dark bluish-ash of the upper parts, the black "moustache," and other marks, taken with its particular size and shape. Wings stiff, long, thin, pointed by the 2d quill, supported nearly to its tip by 1st and 3d; 1st quill alone abruptly emarginate on inner web, this about 2 inches from its tip; none cut on outer webs. Tomium of upper mandible strongly toothed, of under mandible deeply notched. Tarsus feathered but a little way down in front, otherwise entirely reticulate; toes very long, giving great grasp to the talons. Adult: Above rich dark bluish-ash or slate-color, very variable, sometimes quite slaty-blackish, again much lighter bluish-slate; the tint pretty uniform, whatever it may be, over all the upper parts, but all the feathers with somewhat paler edges, and the larger ones for the most part obscurely barred with lighter and darker hues. Under parts at large varying from nearly pure white to a peculiar muddy buff color of different degrees of intensity; the throat and breast usually free from markings (or only with a few sharp shaft pencillings), and this white or light color mounting on the auriculars, so that it partly isolates a blackish moustache from the blackish of the side of the head; the under parts, except as said, and including the under wing- and tail-coverts closely and regularly barred, or less closely and more irregularly spotted, with blackish; the bars best pronounced on the flanks, tibiae, and crissum, other parts tending to spotting, which may extend forward to invade the breast (this is the rule in European birds, the exception, though not a rare one, in American birds). Tail and its upper coverts regularly and closely barred with blackish and ashy-gray, the interspacing best marked on the inner webs, and all the feathers narrowly tipped with white or whitish." Elliot Coues, 1884

Peregrine Falcon Small

"Falco peregrinus. Peregrine Falcon. Duck Hawk. Great-footed Hawk. A medium-sized falcon, about as large…

"Falco peregrinus. Peregrine Falcon. Duck Hawk. Great-footed Hawk. A medium-sized falcon, about as large as the foregoing, but known at a glance from any bird of N. Am. by the slaty-plumbeous or dark bluish-ash of the upper parts, the black "moustache," and other marks, taken with its particular size and shape. Wings stiff, long, thin, pointed by the 2d quill, supported nearly to its tip by 1st and 3d; 1st quill alone abruptly emarginate on inner web, this about 2 inches from its tip; none cut on outer webs. Tomium of upper mandible strongly toothed, of under mandible deeply notched. Tarsus feathered but a little way down in front, otherwise entirely reticulate; toes very long, giving great grasp to the talons. Adult: Above rich dark bluish-ash or slate-color, very variable, sometimes quite slaty-blackish, again much lighter bluish-slate; the tint pretty uniform, whatever it may be, over all the upper parts, but all the feathers with somewhat paler edges, and the larger ones for the most part obscurely barred with lighter and darker hues. Under parts at large varying from nearly pure white to a peculiar muddy buff color of different degrees of intensity; the throat and breast usually free from markings (or only with a few sharp shaft pencillings), and this white or light color mounting on the auriculars, so that it partly isolates a blackish moustache from the blackish of the side of the head; the under parts, except as said, and including the under wing- and tail-coverts closely and regularly barred, or less closely and more irregularly spotted, with blackish; the bars best pronounced on the flanks, tibiae, and crissum, other parts tending to spotting, which may extend forward to invade the breast (this is the rule in European birds, the exception, though not a rare one, in American birds). Tail and its upper coverts regularly and closely barred with blackish and ashy-gray, the interspacing best marked on the inner webs, and all the feathers narrowly tipped with white or whitish." Elliot Coues, 1884

Two Peregrine Falcons

"Falco peregrinus. Peregrine Falcon. Duck Hawk. Great-footed Hawk. A medium-sized falcon, about as large…

Falco tinnunculus. Common Kestral. This bird is a European bird of prey. Plumage on upperside, chestnut-brown with black spots; underside narrow black streaks; tail has a black tip with thin white rim; male has bluish-gray head; female has a brown tail with black bars.

Common Kestral

Falco tinnunculus. Common Kestral. This bird is a European bird of prey. Plumage on upperside, chestnut-brown…

"Archibuteo lagopus sancti-johannis. American Rough-legged Buzzard. "Black Hawk" Adult: Too variable in plumage to be concisely described. In general, the whole plumage with dark brown or blackish and light brown, gray, or whitish, the lighter colors edging or barring the individual feathers; tendency to excess of the whitish on the head, and to the formation of a dark abdominal zone or area which may or may not include the tibiae; usually a blackish anteorbital and maxillary area. Lining of wings extensively blackish. Tail usually white from the base for some distance, then with dark and light barring. The inner webs of the flight-feathers white from the base, usually with little if any of the dark barring so prevalent among buteonine hawks. From such a light and variegated plumage as this, the bird varies to more or less nearly uniform blackish, in which case the tail is usually barred several times with white. Our lighted-colored birds are not fairly separable from the normal European A. Lagopus; but our birds average darker, and their frequent melanism does not appear to befall the European stock. But in any plumage the rough-leg is known at a glance from any Buteo by the feathered shanks; while the peculiar coloration of A. ferrugineus i highly distinctive of the latter." Elliot Coues, 1884

American Rough-legged Buzzard

"Archibuteo lagopus sancti-johannis. American Rough-legged Buzzard. "Black Hawk" Adult: Too variable…

"The letter C marks the point where the vessel to be exhausted is attached." -Century, 1889The Merlin (Falco columbarius) is a smallish falcon that breeds in northern North America, Europe and Asia. In North America it was once and sometimes still is colloquially called "pigeon hawk" though it is not very closely related to true hawks.

Merlin

"The letter C marks the point where the vessel to be exhausted is attached." -Century, 1889The Merlin…

"Haliaetus leucocephalus. White-headed Sea Eagle. "Bald Eagle." "Bird of Washington". Adult: Dark brown; quills black; head and tail white; bill, eyes, and feet yellow. Three years are required for the perfection of the white head tail of the "bald" eagle. The first year, the young are "black" eagle; very dark colored, with fleecy white bases of the feathers showing here and there; bill black; iris brown feet yellow. The next year, they are "gray" eagles, and usually larger than the old birds, the largest known specimens being of this kind." Elliot Coues, 1884

Bald Eagle

"Haliaetus leucocephalus. White-headed Sea Eagle. "Bald Eagle." "Bird of Washington". Adult: Dark brown;…

An Osprey catching a fish. "Pandion haliaetus. Fish Hawk. Osprey. Adult. dark vandyke- brown, blackening on the quills, the feathers of the upper parts more or less completely edged with white - the older the bird, the more conspicuous the white markings. Tail dark brown with dusky bars, white tip and shafts, and inner webs of all but the middle pair of feathers regularly barred with white and dark. Head, neck, and under parts white, the crown more or less extensively streaked with blackish, and a heavy blackish postocular stripe to the nape; the breast more or less spotted with dusky brown; the white more or less tinged with tawny in some places, especially under the wings and on the head. Coloration very variable in the relative amounts of the dark and white colors; young darker, the upper parts without the white crescents. Bill blackish, bluing at base and on cere; feet grayish-blue; claws black; iris yellow or red." Elliot Coues, 1884

Osprey

An Osprey catching a fish. "Pandion haliaetus. Fish Hawk. Osprey. Adult. dark vandyke- brown, blackening…

"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.

White-fronted Dove Details

"Details of Engyptila albifrons (White-fronted Dove); head and foot natural size; wing and tail reduced.

"Cupidonia cupido. Pinnated Grouse. Prairie Hen. Above, variegated with black, brown, tawny, or ochrey, and white, the latter especially on the wings; below, pretty regularly barred with dark brown, white,and tawny; throat tawny, a little speckled, or not; vent and crissum mostly white; quills fuscous, with white spots on the outer webs; tail fuscous, with narrow or imperfect white or tawny bars and tips; sexes alike in color but female smaller, with shorter neck tufts." Elliott Coues, 1884

Prairie Hen

"Cupidonia cupido. Pinnated Grouse. Prairie Hen. Above, variegated with black, brown, tawny, or ochrey,…

"Cupidonia. Tarsi scant-feathered to the toes in front and on sides, bare on a strip behind; toes extensively webbed at base." Elliot Coues, 1884

The Foot of a Prairie Hen

"Cupidonia. Tarsi scant-feathered to the toes in front and on sides, bare on a strip behind; toes extensively…

"Lagopus albus. Willow Grouse. Willow Ptarmigan. Bill very stout and convex, its depth at base as the distance from nasal fossa to tip; whole culmen 0.75; bill black at all seasons. Male and female in winter: Snow white; 14 tail feathers black, white-tipped; the middle pair (which most resemble and perhaps are true rectrices, having no after-shafts) together with all the coverts, one pair of which reach to end of tail, white; shafts of several outer wing-quills black; no black stripe on head." Elliot Coues, 1884

Willow Ptarmigan in Winter

"Lagopus albus. Willow Grouse. Willow Ptarmigan. Bill very stout and convex, its depth at base as the…

"Lagopus albus. Willow Grouse. Willow Ptarmigan. Bill very stout and convex, its depth at base as the distance from nasal fossa to tip; whole culmen 0.75; bill black at all seasons. Male in summer: The head and fore parts rich chestnut or orange-brown, more tawny-brown on back and rump; the richer brown parts sparsely, the tawny-brown more closely, barred with black; most of the wings and under parts remaining white. Female similar, wholly colored excepting the wings, the color more tawny than in the male, and more heavily, closely, and uniformly barred with black." Elliot Coues, 1884

Willow Ptarmigan in Summer

"Lagopus albus. Willow Grouse. Willow Ptarmigan. Bill very stout and convex, its depth at base as the…

"Ortyx. Quail. Outstretched feet reaching beyond end of tail. Bill black or blackish-brown. " Elliot Coues, 1884

Quail Foot and Bill

"Ortyx. Quail. Outstretched feet reaching beyond end of tail. Bill black or blackish-brown. " Elliot…

"Ortyx virginiana. Virginia Partridge or "Quail". Bobwhite. Male: Forehead, superciliary line, and throat, white, bordered with black; crown, neck all round,and upper part of breast, brownish-red; other parts tawny-whitish, all with more or fewer doubly-crescentic black bars; crissum rufous; sides broadly striped with brownish-red; upper parts variegated with chestnut, black, gray and tawny, the latter edging in the inner quills, forming a continuous line when the wing in closed. Female: Known by having the throat buff instead of white, less black about the fore-parts, and general coloration subdued. The reddish of this bird is of a peculiar dull pinkish shade. The black crescents of the under parts are scarcely or not half the width of the intervening white spaces; the bill is not jet black." Elliot Coues, 1884

Male and Female Bob-whites

"Ortyx virginiana. Virginia Partridge or "Quail". Bobwhite. Male: Forehead, superciliary line, and throat,…

"Ortyx virginiana. Virginia Partridge or "Quail". Bobwhite. Male: Forehead, superciliary line, and throat, white, bordered with black; crown, neck all round,and upper part of breast, brownish-red; other parts tawny-whitish, all with more or fewer doubly-crescentic black bars; crissum rufous; sides broadly striped with brownish-red; upper parts variegated with chestnut, black, gray and tawny, the latter edging in the inner quills, forming a continuous line when the wing in closed. Female: Known by having the throat buff instead of white, less black about the fore-parts, and general coloration subdued. The reddish of this bird is of a peculiar dull pinkish shade. The black crescents of the under parts are scarcely or not half the width of the intervening white spaces; the bill is not jet black." Elliot Coues, 1884

Bob-white Family

"Ortyx virginiana. Virginia Partridge or "Quail". Bobwhite. Male: Forehead, superciliary line, and throat,…