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"Corvus corax. American Raven. Feathers of throat somewhat stiffened, lengthened, pointed, lying loose from one another; those of neck with gray downy bases, as elsewhere on the body. Color entirely lustrous black, with chiefly purplish and violet burnishing." Elliot Coues, 1884

American Raven

"Corvus corax. American Raven. Feathers of throat somewhat stiffened, lengthened, pointed, lying loose…

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy, though forming no crest. Bill broad and flattened, a little widened toward end, running into the forehead which arches abruptly over and away from it, not rising gradually into line with forehead; shorter or not longer than head, 2 inches or less in length along culmen, the nostrils within its basal half; the forward end of nostril about 2/5 the way from upper corner to end of bill. Bill dull blue with a black belt at the end. Iris orange. Feet dull grayish-blue, with dusky webs and black claws. Head and neck all around rich pure chestnut, not obscured with dusky-brown, but with bronzy or coppery red reflections. Lower neck and fore parts of body above and below, with rump and tail-coverts above and below, blackish. Back mixed whitish and blackish in about equal amounts, the dark wavy lines distinct and unbroken. Sides of the body under the wings vermiculated much like the back, the undulations subsiding in the grayish-white of the middle under parts. Wing-coverts ashy-gray, minutely dotted with white; speculum hoary-ash, bordered internally with black; lining of wings mostly white. Female: Bill obscured bluish, with black belt near end; iris yellow." Elliot Coues, 1884

Large Redhead

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy,…

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy, though forming no crest. Bill broad and flattened, a little widened toward end, running into the forehead which arches abruptly over and away from it, not rising gradually into line with forehead; shorter or not longer than head, 2 inches or less in length along culmen, the nostrils within its basal half; the forward end of nostril about 2/5 the way from upper corner to end of bill. Bill dull blue with a black belt at the end. Iris orange. Feet dull grayish-blue, with dusky webs and black claws. Head and neck all around rich pure chestnut, not obscured with dusky-brown, but with bronzy or coppery red reflections. Lower neck and fore parts of body above and below, with rump and tail-coverts above and below, blackish. Back mixed whitish and blackish in about equal amounts, the dark wavy lines distinct and unbroken. Sides of the body under the wings vermiculated much like the back, the undulations subsiding in the grayish-white of the middle under parts. Wing-coverts ashy-gray, minutely dotted with white; speculum hoary-ash, bordered internally with black; lining of wings mostly white. Female: Bill obscured bluish, with black belt near end; iris yellow." Elliot Coues, 1884

Small Redhead

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy,…

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy, though forming no crest. Bill broad and flattened, a little widened toward end, running into the forehead which arches abruptly over and away from it, not rising gradually into line with forehead; shorter or not longer than head, 2 inches or less in length along culmen, the nostrils within its basal half; the forward end of nostril about 2/5 the way from upper corner to end of bill. Bill dull blue with a black belt at the end. Iris orange. Feet dull grayish-blue, with dusky webs and black claws. Head and neck all around rich pure chestnut, not obscured with dusky-brown, but with bronzy or coppery red reflections. Lower neck and fore parts of body above and below, with rump and tail-coverts above and below, blackish. Back mixed whitish and blackish in about equal amounts, the dark wavy lines distinct and unbroken. Sides of the body under the wings vermiculated much like the back, the undulations subsiding in the grayish-white of the middle under parts. Wing-coverts ashy-gray, minutely dotted with white; speculum hoary-ash, bordered internally with black; lining of wings mostly white. Female: Bill obscured bluish, with black belt near end; iris yellow." Elliot Coues, 1884

Redheads

"Fuligula ferina americana. Red-head. American Pochard. The feathers of the head somewhat full and puffy,…

"Aegiothus linaria. Common Redpoll. Common Red-poll. Frontlet, lores, and throat-spot sooty-black. Crown crimson. Above, variegated with brownish-yellow and dusky, the feathers having dark centres and flaxen edges. Rump streaked with dusky and white, and tinged with rosy, more or less so according to age and season. Below, white, the sides and crissum streaked with dusky, the entire fore-parts colored with rose-red more or less rich and extensive according to same circumstances. Wings and tail dusky, the feathers edged with whitish, the middle and greater coverts tipped with the same, forming two crossbars. Bill black or yellow, usually found yellow with dusky tip and edges. Feet blackish." Elliot Coues, 1884

Common Redpoll

"Aegiothus linaria. Common Redpoll. Common Red-poll. Frontlet, lores, and throat-spot sooty-black. Crown…

"Our Ruticilla phoenicurus,the Redstart, is grey, with brown wings, chestnut breast, rump, and lateral rectrices, black face and throat; the hen being brownish above and buff below, with less brilliant chestnut tints." A. H. Evans, 1900

Redstart

"Our Ruticilla phoenicurus,the Redstart, is grey, with brown wings, chestnut breast, rump, and lateral…

Two European Redwing birds sitting on a tree branch. These song birds are usually brown with darker brown spots and white underparts. They also have red flanks and an off-white stripe above their eye. Male and female are similar in color.

European Redwing

Two European Redwing birds sitting on a tree branch. These song birds are usually brown with darker…

Reynard the Fox pretending to be dead so he can catch Corbaut and Sharpbeak, the crows.

Reynard the Fox: Tricking the Crows

Reynard the Fox pretending to be dead so he can catch Corbaut and Sharpbeak, the crows.

A flightless bird, the rhea is closely related to the ostrich.

Rhea

A flightless bird, the rhea is closely related to the ostrich.

A robin on a tree branch

Robin

A robin on a tree branch

"Robin: Upper parts slate-color, with a shade of olive. Head black, the eyelids and a spot before the eye white, and the throat streaked with white. Quills of the wings dusky, edged with hoary ash, and with the color of the back. Tail blackish, the outer feather usually tipped with white. Underparts, to the vent, including the under wing-coverts and tibiae white, showing more or less plumbeous. Bill yellow, often with a dusky tip. Mouth yellow. Eyes dark brown. Feet blackish, the soles yellowish." Elliot Coues, 1884

Robin

"Robin: Upper parts slate-color, with a shade of olive. Head black, the eyelids and a spot before the…

A decorative robin with a nest

Robin with eggs

A decorative robin with a nest

The American Robin, Turdus migratorius, is a migratory songbird of the thrush family. It is named after the European Robin because of the male's bright red breast, though the two species are not related. The American Robin is widely distributed throughout North America, wintering south of Canada from Florida to central Mexico and along the Pacific Coast. It is the state bird of Connecticut, Michigan and Wisconsin. It has seven subspecies, but only T. m. confinis in the southwest is particularly distinctive, with pale gray-brown underparts.

American Robin

The American Robin, Turdus migratorius, is a migratory songbird of the thrush family. It is named after…

Chickens are domesticated animals used for their eggs and meat.

Rooster

Chickens are domesticated animals used for their eggs and meat.

A rooster and hen

Rooster and Hen

A rooster and hen

"Machetes pugnax. Ruff. Reeve. Combatant. Gambetta. Varied above with black, brown, buff and chestnut, the sides of rump white; under parts white, breast and sides and crissum black, spotted with white; tail brown, barred with chestnut and white; quills dusky, with shafts; wing-coverts ashy-brown. Bill blackish, flesh-colored at base; legs dingy yellow; warty excrescences yellow; feathers of the ruff endlessly varied in color." Elliot Coues, 1884

Ruff

"Machetes pugnax. Ruff. Reeve. Combatant. Gambetta. Varied above with black, brown, buff and chestnut,…

A bird belonging to the grallatores or waders.

Ruff Fowl

A bird belonging to the grallatores or waders.

"Calidris arenaria. Sanderling. Ruddy "Plover". Adult in summer: Entire upper parts and neck all round variegated with black, light ashy and bright reddish; on the back and scapulars each feather having a central black field, and being broadly margined and tipped with ashy or reddish. Under parts white, immaculate. Outer webs an tips of primaries deep brownish-black, inner light ashy. A white spot at base of inner primaries. Secondaries mostly pure white; the outer vanes and part of inner on the latter half dusky. Greater coverts dusky, broadly tipped and narrowly edged with pure white. Rump, upper tail-coverts and central tail-feathers dusky, tipped and narrowly edged with ashy-white; lateral tail=-feathers very light ash, nearly white. Bill and feet black." Elliot Coues, 1884

Sanderling

"Calidris arenaria. Sanderling. Ruddy "Plover". Adult in summer: Entire upper parts and neck all round…

"Fig. 39 shows a Tridactyle foot of a sanderling, Calidris arenaria." Elliot Coues, 1884

Tridactyle Foot of a Sanderling

"Fig. 39 shows a Tridactyle foot of a sanderling, Calidris arenaria." Elliot Coues, 1884

Sandpipers live in small flocks on the banks of rivers and on the sea-coast

Sandpiper

Sandpipers live in small flocks on the banks of rivers and on the sea-coast

Sandpipers live in small flocks on the banks of rivers and on the sea-coast.

Sandpiper

Sandpipers live in small flocks on the banks of rivers and on the sea-coast.

"... basal webs generally run out to the end of the first, or along part of the second, phalanx of the toes; usually farther between the outer and middle that between the middle and inner toes. Such a foot is well illustrated by the semipalmated plover (Aegialites semipalmatus), semipalmated sandpiper(Ereunetes pusillus, fig 48)." Elliot coues, 1884

Half-Webbed Foot of a Sandpiper

"... basal webs generally run out to the end of the first, or along part of the second, phalanx of the…

"Tryngites rufescens. Buff-breasted Sandpiper. Above, brownish-black with a greenish gloss, every feather broadly margined with tawny or yellowish-brown, the latter the prevailing tone. Under parts buff or fawn-colored, without markings except a few small blackish spots on sides of breast. Central tail-feathers greenish-brown, blackening at ends; others paler, often rufescent, with white or tawny tips and subterminal black bar; and usually, also, some black marbling or streaking/ Primaries and secondaries ashy-brown blackening at end, the extreme tip white - most of the inner webs of the primaries, and both webs of the secondaries pearly white, speckled and marbled with black. This curious tracery, best seen from below, is diagnostic; though the precise pattern varies interminably. The patch of under coverts at the bases of the primaries have the same character. Axillars white, lining of wings white or rufescent. Iris brown. Bill brownish-black; legs greenish or yellowish." Elliot Coues, 1884

Buff-breasted Sandpiper

"Tryngites rufescens. Buff-breasted Sandpiper. Above, brownish-black with a greenish gloss, every feather…

"Rhyacophilus solitarius. Solitary Tattler. American Green Sandpiper. Solitary Sandpiper. Above, dark lustrous olive-brown, streaked on the head and neck, elsewhere finely speckled, with white; no continuous white on rump or upper tail-coverts. Below, white; the jugulum and sides of neck shaded with brownish and streaked with dusky; sides, axillars, and `lining of wings regularly barred with dusky. Rump and upper tail-coverts like back; tail beautifully and regularly barred throughout with black and white; white prevailing on the outer feathers, where the dark bars may be broken, and white reduced to a series of marginal spots on the middle feathers. Primaries and edge of wing blackish, unmarked; secondaries like back, mostly unmarked, the inner ones gradually gaining white spots. Bill blackish; legs dull greenish." Elliot Coues, 1884

Solitary Sandpiper

"Rhyacophilus solitarius. Solitary Tattler. American Green Sandpiper. Solitary Sandpiper. Above, dark…

"Eurynorhynchus pygmaeus. Spoon-billed Sandpiper. General appearance of a stint, and size little greater. Coloration of upper parts almost exactly as in the species just names, the feathers being black, with indented light chestnut-red edgings, and mostly grayish-white tips; crown simply streaked with the reddish color and black. Under parts white, the whole throat, breast, and sides of the neck overlaid with bright chestnut (as in a highly-plumaged sanderling), the breast, back of this colored area, and the sides of the body, spotted with dusky. Primaries plain dusky, with blackish outer webs and ends, and mostly white shafts; secondaries mostly white from the base; greater coverts white-tipped. Bill and feet black." Elliot Coues, 1884

Spoon-billed Sandpiper

"Eurynorhynchus pygmaeus. Spoon-billed Sandpiper. General appearance of a stint, and size little greater.…

"Tringoides macularius. Spotted Sandpiper. Above, silken ashen-olive (quaker-color- as in our cuckoos) with a coppery lustre, finely varied with blackish, in streaks on head and neck, elsewhere in wavy or otherwise irregular cross-bars. line over eye, and entire under parts, pure white, with numerous sharp circular black spots, larger and more crowded in the female than in the male. Secondaries. and their coverts broadly white-tipped; some white feathers along bend of wing; axillars and lining of wings white, the latter with an oblique dusky bar. Primaries and most of the secondaries brownish-black, with brown shafts and large white basal spaces, concealed in the folded wing, conspicuous in flight. Upper tail-coverts and middle tail-feathers like back; lateral ones successively acquiring white tips; outer with several incomplete white bars. Feet pinkish-white, drying yellowish. Bill flesh-color, black-tipped; sometimes much of culmen dusky; sometimes much of under mandible orange." Elliot Coues, 1884

Spotted Sandpiper

"Tringoides macularius. Spotted Sandpiper. Above, silken ashen-olive (quaker-color- as in our cuckoos)…

"Micropalama himantopus. Stilt Sandpiper. In summer: blackish, each feather edged and tipped with white and tawny or bay, which on the scapulars becomes scalloped. Auriculars chestnut; a dusky line from bill to eye, and a light reddish superciliary one; upper tail-coverts white with dusky bars. Primaries dusky with blackish tips; tail-feathers 12 ashy-gray, their edges and a central field white; under parts mixed reddish, black, and whitish, in streaks on the jugulum, elsewhere in bars; bill and feet greenish-black." Elliot Coues, 1884

Stilt Sandpiper

"Micropalama himantopus. Stilt Sandpiper. In summer: blackish, each feather edged and tipped with white…

"The Dwarf Hummingbird is a species which is only about the size of a bee. The Bar-tailed Hummingbird, or Sappho Comet, is a native of eastern Peru."

Sappho Comet

"The Dwarf Hummingbird is a species which is only about the size of a bee. The Bar-tailed Hummingbird,…

"Momotus caeruleiceps. Blue-headed Saw-bill. The central tail-feathers are long-exserted, and spatulate by absence of webs along a part of the shaft - a mutilation effected, it is said, by the birds themselves; the bill is about as long as the head, gently curved; the nostrils are rounded, basal, exposed; the wings are short and rounded; the tarsi are scutellate anteriorly. It is greenish, with blue head." Elliot Coues, 1884

Blue-headed Saw-bill

"Momotus caeruleiceps. Blue-headed Saw-bill. The central tail-feathers are long-exserted, and spatulate…

"Milvulus tyrannus, Scissor-tail, normally exhibits olive, grey, yellow, or white in varying proportions." A. H. Evans, 1900

Scissor-tail

"Milvulus tyrannus, Scissor-tail, normally exhibits olive, grey, yellow, or white in varying proportions."…

"Oidemia americana. American Black Scoter. Sea Coot. Adult male: Plumage entirely black, less glossy and jetty below than above, grayish on the inner webs of the quills. Iris brown. Feet blackish. Young male resembling the female. Female: Sooty-brown, paler below, becoming grayish-white on belly, there dusky-speckled, on sides and flanks dusky-waved; throat and sides of head mostly continuous whitish, not in special spots; bill blackish, not bulging; feet livid olivaceous with black webs." Elliot Coues, 1884

Black Scoter

"Oidemia americana. American Black Scoter. Sea Coot. Adult male: Plumage entirely black, less glossy…

Screamers live near moist marshy locations or sandy streams. They do not swim, but walk along the vegetation for food.

Screamer

Screamers live near moist marshy locations or sandy streams. They do not swim, but walk along the vegetation…

Screamers live near moist marshy locations or sandy streams. They do not swim, but walk along the vegetation for food.

Screamer

Screamers live near moist marshy locations or sandy streams. They do not swim, but walk along the vegetation…

A black-headed Gull standing on one leg on the beach.

Black-headed Seagull

A black-headed Gull standing on one leg on the beach.

"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male Dynamamaebae (figs. 106, 107), are the exact counterparts of ovarian ova, in so far as they are single-celled animals of a very low grade of organization; but their activity and intelligence is marvelousm and still more so is the mysterious attribute with which they are endowed of assimilating their protoplasmic substance with that of the ovum; with the result that thus fecundated ovum is capable of procreating itself by fission for a period until a mass of similar creates in engendered; from which mass is then speedily evolved the complex body the bird." Elliot Coues, 1884

Rooster Seman

"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male…

"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male Dynamamaebae (figs. 106, 107), are the exact counterparts of ovarian ova, in so far as they are single-celled animals of a very low grade of organization; but their activity and intelligence is marvelousm and still more so is the mysterious attribute with which they are endowed of assimilating their protoplasmic substance with that of the ovum; with the result that thus fecundated ovum is capable of procreating itself by fission for a period until a mass of similar creates in engendered; from which mass is then speedily evolved the complex body the bird." Elliot Coues, 1884

Sparrow Seman

"Spermatozoa of domestic cock, greatly magnified." The spermatozoam or seminal animalcules, or male…

"Cariama cristata, the Seriem&aacute, or Crested Screamer, extending from Pernambuco to Paraguay and Matto Grosso, is ochreous-grey above with zig-zag umber markings, and whitish below with brown stripes. Vertical feathers on the lores form a conspicuous crest, while those of the neck and throat are long and loose; interrupted white bands cross the remiges, and the bases and tips of the lateral rectrices. The iris is yellow, the beak and feet are red, the naked orbits greenish. The female is yellower, and exhibits less crest." A. H. Evans, 1900

Seriemá

"Cariama cristata, the Seriemá, or Crested Screamer, extending from Pernambuco to Paraguay and…

"Puffinus opisthomelas. Black-vented Shearwater. Dark color of upper parts extending farther on sides of head than in obscurus, leaving no white about eye. Under tail-coverts entirely sooty-blackish, except a few of the shortest just at the vent. More dark color on flanks, on lining of wings and axillars than in obscurus. In the dry state, bill yellowish or reddish-brown, the nasal tubes and culmen blackish, the hook mostly bluish-white. Outside of tarsus for the most part, outer toe and edges of webs, blackish; rest of foot pale yellowish flesh-color; "iris brown" Elliot Coues, 1884

Black-vented Shearwater

"Puffinus opisthomelas. Black-vented Shearwater. Dark color of upper parts extending farther on sides…

"Puffinus fuliginosus. Sooty Shearwater. Nearly uniform dark sooty-brown, blackening on quills and tail-feathers, more sooty-gray below, paler still on the throat; lining of wings mixed sooty and whitish. Bill drying an undefinable dark color, in life dusky bluish-horn color, the tube, ridge, and hook blackish; feet drying dark outside, pale inside; in life the inside of tarsus and upper side of feet livid flesh-color, the outside of outer toe and under side of feet blackish; eye blackish." Elliot Coues, 1884

Sooty Shearwater

"Puffinus fuliginosus. Sooty Shearwater. Nearly uniform dark sooty-brown, blackening on quills and tail-feathers,…

Tadorna cornuta, the Sheld-Drake or Bargander, ...shews a white collar on the lower neck followed by a broad chestnut band; blackish outer scapulars, remiges, and the tip of a tail; a patch of chestnut on the inner secondaries, a green speculum, and a brown line down the under parts, the remaining portions being white." A. H. Evans, 1900

Shelduck

Tadorna cornuta, the Sheld-Drake or Bargander, ...shews a white collar on the lower neck followed by…

Three ships sailing on the ocean.

Ships

Three ships sailing on the ocean.

"Spatula clypeata. Shoveller Duck. Broad-bill. Bill blackish; iris orange-red: feet vermilion-red. Head and neck dark glossy green. Lower neck and fore breast pure white. Abdomen purplish-chestnut. Wing-coverts sky-blue; speculum rich green, set between white tips of greater coverts, and black subtips and white tips of secondaries; inner secondaries greenish-black, with long white stripe; long scapulars blue on outer webs, striped with white and greenish-black on inner; short anterior scapulars white. Rump and upper and under tail-coverts black; a white patch on each side at root of tail." Elliot Coues, 1884

Northern Shoveler

"Spatula clypeata. Shoveller Duck. Broad-bill. Bill blackish; iris orange-red: feet vermilion-red. Head…

This duck is smaller than a common duck with a long beak with a spoon shape ventrally.

Shoveller

This duck is smaller than a common duck with a long beak with a spoon shape ventrally.

The shrikes are hawklike in appearance and in habits, having a hooked beak and sharp claws. They impale their prey on thorns of hedges and trees.

Shrike

The shrikes are hawklike in appearance and in habits, having a hooked beak and sharp claws. They impale…

"The Lanius excubitor, Great Grey Shrike, lax plumage is either black, grey, and white, or is varied with rich red-brown. The young are browner, and are often transversely barred below..." A. H. Evans, 1900

Great Grey Shrike

"The Lanius excubitor, Great Grey Shrike, lax plumage is either black, grey, and white, or is varied…

"In Greek mythology, one of two, or three, or an indeterminate number of sea-nymphs who by their singing fascinated those who sailed by their island, and destroyed them. In works of art they are represented as having the head, arms, and generally the bust of a young woman, the wings and lower part of the body, or sometimes only the feet, of a bird." &mdash;Whitney, 1889. <p>This illustration is of two of the sirens depicted on a funeral marble in Chios. The top siren appears to be dancing. The one on the bottom is playing an instrument.

Sirens on a Greek Funeral Marble

"In Greek mythology, one of two, or three, or an indeterminate number of sea-nymphs who by their singing…

"Carduelis pinus. Pine Linnet. Pine Finch. American Siskin. Pine Siskin. Continuously streaked, above with dusky or dark olivaceous-brown and flaxen or whitish, below with dusky and whitish, the whole body usually suffused with yellowish, most evident on the rump. Wings dusky, the basal portion of all the quills and their inner webs for some distance sulphury-yellow, usually showing externally as a spot just beyond the coverts, sometimes restricted and hidden. Outer webs of the quills also narrowly edged with yellow, separated from the basal yellow patch by a blackish interval. Tail dusky, its basal half yellow, and outer webs edged with yellow. Bill and feet brown." Elliot Coues, 1884

Pine Siskin

"Carduelis pinus. Pine Linnet. Pine Finch. American Siskin. Pine Siskin. Continuously streaked, above…

"Fig 56 - Axial skeleton, minus the skull, of an owl, Asio wilsonianus, life size; from nature by Dr. R.W. Shufeldt, USA. at, atlas; ax,axis; cv, cervical vertebrae; c, c', cervical ribs, or free pleurapophyses; dv, dorsal vertebrae, excepting the last one, which joins the sacrum; R, two of the six true ribs (pleurapophyses), whereof sr is sacral; u, one of the five uncinate processes or epipleura; cr, two of the six sternal ribs(haemapophyses), whereof the sixth floats; p, pelvic or sacral region of the spine, comprehending one dorsal, and several lumbar, sacral proper, and urosacral vertebrae; I ilium; Is, ischium; P pubis; a, acetabulum; in, ischio-iliac foremen; o, obturator foramen; clv, caudal or coccygeal vertebrae, whereof py is the pygostyle; s, scapula; ohs, os humero-scapulare; cl, clavicle; C, coracoid; S, sternum." Elliot Coues, 1884

Axial Skeleton

"Fig 56 - Axial skeleton, minus the skull, of an owl, Asio wilsonianus, life size; from nature by Dr.…

"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;…

In skimmers the upper beak is shorter than the lower beak, allowing it to pick up shrimp and small fish while skimming the sea.

Skimmer

In skimmers the upper beak is shorter than the lower beak, allowing it to pick up shrimp and small fish…

'Rhynchops. Skimmer. Bill hypognathous Among the singular bills of birds that frequently excite our wonder, that of the skimmers as one of the most anomalous. The under mandible is much longer than the upper, compressed like a knife-blade; its end is obtuse; its sides come abruptly together and are completely soldered; the upper edge is as sharp as the under, and fits a groove in the upper mandible; the jawbone, viewed apart, looks like a short-handled pitchfork. The upper mandible in also compressed, but less so, nor is it so obtuse at the end; its substance is nearly hallow, with light cancellated structure, much as in a toucan; it is freely movable by means of an elastic hinge at the forehead." Elliot Coues, 1884

The Bill of a Skimmer

'Rhynchops. Skimmer. Bill hypognathous Among the singular bills of birds that frequently excite our…

"Fig 64 - Skull of chick, fifth day of incubation, x 9 diameters. Seen from above, the membranous roof of the skull and the brain removed. cv1, anterior cerebral vesicle; e, eye; c, notochord, running through the middle of the basilar plate or parachordal cartilage, in which are already visible the rudimentary ear-parts, cl, the cochlea, hsc, the horizontal semicircular canal; pts, the pituitary space, bounded by tr, the trabeculae, which come together before it to form the fronto-nasal plate, fn, in fig. 65; lg, lingula or bridge connecting trabeculae with parachordal cartilage; 5 notch afterward becoming foramen ovale for passage of parts of the fifth (trifacial) nerve; 9, foramen for hypoglossal nerve; q, separate cartilage forming the future quadrate bone." Elliot Coues, 1884

Skull of a Chick

"Fig 64 - Skull of chick, fifth day of incubation, x 9 diameters. Seen from above, the membranous roof…

"Skull of a chick, but seen from below. cv1, anterior cerebral vesicle; e, eye; m, mouth; pts, pituitary space; fn, fronto-nasal plate; tr, ends of the trabeculae, free again after their union and bent strongly from the original axis of the trabeculae; n, external nostril; mxp, subocular bar of cartilage, or pterygo-palatine rod, to form pa, palatine, and pg, pterygoid bone, and other parts of the upper jaw, as the maxillary, jugal and quadrato-jugal; q, quadrate cartilage, same as seen in fig 64; mk, meckelian cartilage, to form lower jaw; these parts are in the first post-oral visceral arch; ch, cerato-hyal, and bh, basihyal, of second postoral arch; cbr, cerato-branchial, ebr-branchial, bbr, basi-branchial, of third post-oral arch; the parts of the second and third arch all going into the hyoid bone. 1, 2, 3, 1st, 2d, 3d, visceral clefts, whereof the 1st is to be modified into the ear-passages, and the others are to be obliterated." Elliot Coues, 1884

Skull of a Chick Below

"Skull of a chick, but seen from below. cv1, anterior cerebral vesicle; e, eye; m, mouth; pts, pituitary…

"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…

"Side view of a woodpecker's skull, showing the long slender basihyal (bh), bearing slight elements at its fore end, no uroyhal, and extraordinarily long thyrohyals (cbr, ebr) curving up over back of skull and curling together around orbit of the right eye." Elliot Coues, 1884

The Skull of a Woodpecker

"Side view of a woodpecker's skull, showing the long slender basihyal (bh), bearing slight elements…

"The post-oral arches of the house martin, at middle of period of incubation, lateral view, X14 diameters. mk, stumpof meckelian or mandibular rod, its articular part, ar already shapen; q, quadrate bone, or suspensorium of lower jaw, with a free anterior orbital process and long posterior otic process articulating with the ear-capsule, of which teo, tympanic wing of occipital, is a part; mst, est, sst, ist, sth, parts of suspensorium of the third post-oral arch, not completed to chy; mst, medio-stapedial, tp come away from teo, bringing a piece with it, the true stapes or columella auris; the oval base of the stapes fitting into the future fenestra ovalis, or oval window looking into the cochlea; sst, supra-stapedial; est, extra-stapedial; ist, infra-stapedial, which will unite with sth, the stylo-hyal; chy and bhym cerato-hyal and basi-hyal, distal parts of the same arch; bbr, br 1, br2, basi-branchial, epi-branchial and cerato-branchial pieces of the third arch, composing the rest of the hyoid bone; tg, tongue." Elliot Coues, 1884

House Martin Skull

"The post-oral arches of the house martin, at middle of period of incubation, lateral view, X14 diameters.…

"Desmognathous skull of mallard duck, Anas boscas, nat. size, from nature, by Dr. R.W. Shufeldt, U.S.A. Letters before. In the "bound-palate" type, the vomer in either abortive, or so small that it disappears; when existing it is usually slender and tapers to a point in front; the maxillo-palatines are united across the median line, either directly or by means of ossification in the nasal septum; the posterior ends of the palatines and the anterior ends of the pterygoids articulate directly with the rostrum (as in schizognathism). This type is simply and perfectly exhibited by a duck in which the maxillo-palatine is a broad flat plate united with its fellow in mid-line; the oval sessile basipterygoid facets are far forward, opposite the very ends of the pterygoids." Elliot Coues, 1884

Mallard Duck Skull

"Desmognathous skull of mallard duck, Anas boscas, nat. size, from nature, by Dr. R.W. Shufeldt, U.S.A.…

"Fig. 114. -Skulls of Turdidae and Sylvicolidae, nat. size; after Shufeldt. A, Oroscoptes montanus; B, Sialia mexicana; C, Cinclus mexicanus; D, Siurus naevius. Observe likeness between A and B, at points marked c, c', l, l'; and between C and D, at points marked b, b,' d, d'." Elliot Coues, 1884

Bird Skulls

"Fig. 114. -Skulls of Turdidae and Sylvicolidae, nat. size; after Shufeldt. A, Oroscoptes montanus;…

"Alauda arvensis, the Sky-Lark, breed in Britain. The normal coloration is light-brown with darker longitudinal streaks, the under parts being whitish and frequently spotted anteriorly." A. H. Evans, 1900

Skylark

"Alauda arvensis, the Sky-Lark, breed in Britain. The normal coloration is light-brown with darker longitudinal…