The Field Sparrow, Spizella pusilla, is a small sparrow. Adults have brown upperparts, a light brown…
The Vesper Sparrow, Pooecetes gramineus, is a medium-sized sparrow. It is the only member of the genus…
The Whip-poor-will or whippoorwill, Caprimulgus vociferus, is a medium-sized (22-27 cm) nightjar from…
The Purple Martin (Progne subis) is the largest North American swallow at 20 cm length. Adults have…
The Purple Martin (Progne subis) is the largest North American swallow at 20 cm length. Adults have…
Diagrammatic sections of the ideal vertebrate. A, sagittal section showing the brain and spinal cord…
Cicinnurus respublica: a species of Bird of Paradise in the subgenus Diphyllodes.
The Scissortailed Flycatcher (Milvulus forficatus) is a tyrant flycatcher in the Tyrannidae family.
A fox is an animal belonging to any one of about 27 species (of which only 12 actually belong to the…
The Twelve-Wired Bird of Paradise (Seleucidis melanoleucus) is a black and yellow bird of paradise named…
An illustration of Penaud's artificial flying bird. "a b c d, a', b' c' d', lactic wings which twist…
The pea crab is a small crab in the family Pinnotheridae that lives symbiotically in oysters, clams,…
This Printer's-mark typographical frame was designed during the Italian Renaissance, 16th century. The…
This Printer's-mark typographical frame was designed during the Italian Renaissance, 16th century. The…
This Printer's-mark typographical frame was designed in Paris during the 19th century. The head and…
The Great Sickle-Bill (Epimachus speciosus) is a bird of paradise in the Paradisaeidae family.
The Fantail is a popular breed of Fancy Pigeon which are domesticated varieties of the Rock Pigeon (Columba…
"Files. a, cotter-file when large, and verge- or pivot-file when small; b, square file (parallel or…
"Skeleton of Fish (Perch). a, intermaxillaries; b, nasal region; c, dentary bone of mandible; d, orbit…
"Heterocercal Caudal Fin of a Sturgeon (Acipenser brevirostris), showing the series of fulcrums, Fl,…
"Struthio camelus, the Ostrich or "Camel-bird" of North Africa now extends from Barbary to Arabia, and…
Kiwi, Apteryx australis, of the South Island, is lighter (than the Apteryx mantelli of North Island),…
The storm Petrel "of the Mediterranean and North Atlantic from Greenland to South Africa, which breeds…
"The Indian Darter (Plotus melangaster) or snake-bird of tropical and subtropical America, ranging northwards…
"Balaeniceps rex, the Shoebill, of the White Nile, has a short crest, and is brownish-grey with blackish…
"Scopus umbretta, the Hammerhead, of Madagascar and a large part of the Ethiopian Range, is purplish-brown,…
Tadorna cornuta, the Sheld-Drake or Bargander, ...shews a white collar on the lower neck followed by…
"Standing some four feet high on very long legs, this bird (Secretary Bird) gives the impression of…
"Accipiter nisus, the Sparrow-Hawk, which breeds throughout Europe, North Africa, Asia north of the…
"Milvus milvus, the Red Kite or Forked Tail Glead of the Old World, ranging from the Atlantic Islands-except,…
"The Hoatzin (Opisthocomus cristatus) is curious and highly specialized. "The body is long and thin,…
"Rhinochetus jubatus, the Kuga ... has powder-down patches that are profusely distributed over the whole…
"Eurypyga helias, Sun-Bittern, has a black head, with a white stripe above and under each eye, and a…
"Numenius arquata, the Curlew or Whaup, breeds freely on the moorlands of Britain; and extends throughout…
"Hydrophasianus chirurgus, the Indian Jacana, of most of the Indian Region, is Bronzy-brown above and…
"The Dodo, ...was an immense Pigeon-like bird bigger than a Turkey, with an aborted keel to the sternum…
Didunculus strigirostris, the Manu-mea or Red Bird of the islands of Upolu, Salvai, and Tutuila in Samoan…
"Goura coronata, the Crowned Pigeon, discovered by Dampier in 1699, is bluish-slate -coloured, with…
"Cuculus canorus the familiar Cuckoo of Britain and nearly all the Old World, is greyish-brown above…
"The plumage is brownish, with white margins to the feathers and a purple tinge on the rufous-mottled…
The Nymphicus uvaeesis, Uvaean Parakeet, has a dark coloured face, black beak, green plumage and crest,…
"Psittacus erithacus, the Grey Parrot, which ranges across Equatorial Africa, is ashy-grey, with black…
"Nestor notabilis, the Kea of the south island of New Zealand, has olive-green plumage with blackish…
"Leptosoma discolor, the Kiromobo or Vorondreo of Madagascar, and the Comoro Islands, which has a big…
"Merops Apiaster, the Bee-eater, has ruddy-brown head, neck, upper back, and broad alar bar, buff lower…
"Upupa epops, not unfrequently visits Britain, where it has nested on several occasions; it breeds from…
"The coloration of the twenty or more species of Cypselus is sooty-black or mouse-brown, frequently…
"Aithurus polytmus, the Long-tailed Hummingbird, peculiar to Jamaica, the two tail-feathers next to…
"Pharomacrus mocinno, the Quezal of the higher districts of Guatemala to Veragua, is brilliant iridescent…
The Rhamphastus ariel, or Ariel Toucan, is black with a yellow or orange rump and throat. The brilliant…
"The plumage in the Calyptomena viridis of the Indo-Malay countries is bright green, with large black…
"Pitta brachyura, the Indian Pitta, has plumage that exhibits vivid scarlet, blue, and green tints,…
"Milvulus tyrannus, Scissor-tail, normally exhibits olive, grey, yellow, or white in varying proportions."…
"Menura superba, the Lyre-bird, of New South Wales and South Queensland, some thirty-three inches long,…
"Hirundo rustica, the Swallow, is metallic black, with a variable amount of chestnut or rufous on the…
"Both sexes of our irregular winter-visitor the Waxwing (Ampelis garrulus) are silky greyish-brown,…
"Panurus biarmicus, the "Bearded Tit" or "Reed-Pheasant" plumage is orange-brown above, with grey crown…