By DK Publishing
This definitive box advisor is the one consultant to exploit a completely built-in photographic method of profile the extreme variety of birds present in japanese North the US. The highest-quality images brings approximately 500 species to lifestyles at the web page, taking pictures their attractiveness and making id fast and easy. The 393 species most ordinarily noticeable east of the a centesimal Meridian (in the U.S., the sector east of the Rocky Mountains) are featured in full-page profiles that emphasize all of the details had to determine them. Diagnostic images are silhouetted and obviously annotated, and any plumages, no matter if girl, juvenile, subspecies, and wintry weather or summer season, that fluctuate notably from the first photograph also are incorporated and categorised consequently. unique related species containers convey the plumage that's so much similar-in a few circumstances the feminine or juvenile instead of the featured adult-and the main major changes are picked out. gorgeous context pictures express the poultry at domestic, in its basic habitat or acting habit that's general of that species. Schematic artistic endeavors convey the form and posture of the fowl in flight in addition to its colour, and a diagram of its flight development is usually integrated. The border of Texas and Mexico is a well-liked vacation spot as a result of many species that may be obvious nowhere else in jap North the USA. The 60 most typical of those southern gemstones are profiled of their personal component to quarter-page entries, every one with a beautiful photo annotated to indicate the main major box marks. A separate part profiles forty four species which are really unusual or neighborhood of their distribution.
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Additional resources for American Museum of Natural History: Birds of North America: Eastern Region
TOUCHING DOWN Snow Geese are well known for migrating in flocks that number in the tens of thousands. 36 Breeding colonies in High Arctic from Wrangel Island in the West to Greenland in the East; a population of “lesser” Snow Geese breeds near Hudson Bay. Winters along interior valleys westward to coastal lowlands and central plateau of Mexico; Atlantic populations winter in coastal marshes. 7–3kg) Social Flocks Lifespan Up to 27 years Status Secure DATE SEEN WHERE NOTES 37 WATERFOWL Order Anseriformes Family Anatidae Ross’s Goose Species Anser rossii light gray crown black wing tips ADULT (WHITE) round head short, triangular bill dusky line through eye gray wash on upperparts short, deeply furrowed neck IMMATURE (WHITE FORM) IN FLIGHT clean white upperparts mostly dark brown upperparts white rump and tail ADULT (BLUE FORM) ADULT (WHITE FORM) reddish pink legs FLIGHT: strong and direct, with rapid wing beats.
C. atlanticus) is slightly larger and is found breeding farther east. The smaller “lesser” (A. c. caerulescens) breeds farther west. Snow Geese have two color forms—white and “blue” (actually dark grayish brown with a white head), and there are also intermediate birds. VOICE Basic a call nasal whouk, kowk, or kow-luk, also higherpitched heenk; feeding call a series of hu-hu-hur. NESTING Scrapes on hummock, lined with plant material and down; 2– 6 eggs; 1 brood; May–July. FEEDING Grazes on aquatic and terrestrial vegetation, including stems, seeds, leaves, tubers, and roots; also grain and young leaves in agricultural fields in winter.
OCCURRENCE SIMILAR SPECIES WHITE-TAILED PTARMIGAN 8 ROCK PTARMIGAN 8 browner plumage grayer plumage Prefers tundra, in Arctic, sub-Arctic and subalpine regions. Thrives in willow thickets along low, moist river corridors; also in the low woodlands of the sub-Arctic tundra. 30 smaller overall darker Length 14–171⁄2in (35–44cm) Wingspan 22–24in (56–61cm) Weight 15–28oz (425–800g) Social Winter flocks Lifespan Up to 9 years Status Secure DATE SEEN WHERE NOTES 31 GAMEBIRDS Order Gallifornes Family Phasianidae Gray Partridge Species Perdix perdix cinnamon face rusty head gray neck and chest with fine black barring ADULT brown, rounded wings gray back with fine barring dark cinnamon tail IN FLIGHT underparts gray overall horseshoe-shaped belly patch ADULT ADULT chestnut barred gray flanks FLIGHT: erupts from cover on loud, rapid wing beats; levels off, flaps and glides; flies low.
American Museum of Natural History: Birds of North America: Eastern Region by DK Publishing