By DK Publishing
Overlaying 580 species present in the U.S. and Canada west of the a centesimal Meridian, the American Museum of normal heritage Birds of North the US Western Region is the one consultant to exploit a completely built-in photographic method of profile the intense variety of birds typically noticeable west around the nice Plains and West Coast.
Ideal for birdwatchers and chook fanatics of all ages, and together with info on habit, nesting, and habitat, the American Museum of common heritage Birds of North the USA Western Region contains distinctive sections on species discovered purely within the Southwest and for species which are unusual or really constrained in distribution.
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Additional resources for American Museum of Natural History Birds of North America: Western Region
50 plainer plumage plainer face longer tail Length 171⁄2–20in (44–51cm) Wingspan 27–33in (69–84cm) Weight 14–29oz (400–825g) Social Flocks Lifespan Up to 18 years Status Secure DATE SEEN WHERE NOTES 51 WATERFOWL Order Anseriformes Family Anatidae Species Anas acuta Northern Pintail white, trailing edge of wing green wing patch with buff bar MALE (WINTER) plain buff face with dark eye FEMALE mottled graybrown body outstretched head and IN FLIGHT neck long, pointed black tail gray bill dull, grayish body MALE (SUMMER) blackish bill pale, chocolatebrown head whitish belly pointed tail shorter than male gray back and flanks long neck FEMALE black bill with gray sides MALE (WINTER) black undertail with white flank patch white neck and breast A n elegant, long-necked dabbler, the Northern Pintail has extremely distinctive marking and a very long tail—in fact, the longest tail to be found on any freshwater duck.
VOICE Male call honk or bark; females have higher pitched hrink. NESTING Scrape lined with available plant matter and down, near water; 1–2 broods; 2–12 eggs; May–August. FEEDING Grazes on grasses, sedges, leaves, seeds, agricultural crops, and berries; also insects. FLIGHT: strong and direct with fairly slow, deep wing beats; often flies in V-formation. TRICK OF THE LIGHT A low sun can play tricks—these birds are actually pale grayish underneath. OCCURRENCE SIMILAR SPECIES GREATER WHITEFRONTED GOOSE Variety of inland breeding habitats near water, including grassy urban areas, marshes, prairie, parkland, coastal temperate forest, northern coniferous forest, and Arctic tundra.
7–3kg) Social Flocks Lifespan Up to 27 years Status Secure DATE SEEN 40 WHERE NOTES 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.
American Museum of Natural History Birds of North America: Western Region by DK Publishing