By DK Publishing
Masking 580 species present in the us and Canada west of the one hundredth Meridian, the American Museum of usual background Birds of North the US Western Region is the one consultant to exploit a completely built-in photographic method of profile the extreme diversity of birds more often than not visible west around the nice Plains and West Coast.
Ideal for birdwatchers and poultry fanatics of all ages, and together with info on habit, nesting, and habitat, the American Museum of traditional background Birds of North the US Western Region comprises targeted sections on species stumbled on simply within the Southwest and for species which are unusual or rather restricted in distribution.
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Extra info for American Museum of Natural History Birds of North America: Western Region
5m) long, and weighing up to 25lb (12kg). DUCKS Classified in their own subfamily, called the Anatinae, ducks are more varied than swans or geese, with many more species. They are loosely grouped by INSTANT TAKEOFF their feeding habits. Puddle ducks like the Mallard Dabblers, or puddle can shoot straight out of the water and into the air. ducks, such as the Mallard, teals, and wigeons, eat plants and animal matter, such as snails. They feed by upending on the surface of shallow water. By contrast, diving ducks, a group that includes scaups, scoters, eiders, mergansers, and the Ruddy Duck, dive deep underwater for their food.
Crecca (Eurasia), A. c. carolinensis (North America), and A. c. nimia (Aleutian Islands). Carolinensis males have a conspicuous vertical white bar, whereas Eurasian crecca males do not. VOICE Male call a high-pitched, slightly rolling crick crick, similar to cricket; female a call quiet quack. NESTING Shallow scrape on ground lined with nearby vegetation, often placed in dense vegetation near water; 6–9 eggs; 1 brood; April–September. FEEDING Eats seeds, aquatic insects, crustaceans, and mollusks year-round; also feeds in grain fields in winter.
However, in recent decades, droughts, combined with the reduction of habitat on both their wintering and breeding grounds, have resulted in a significant decline in their population. VOICE Male call a high-pitched rolling prrreep prrreep; lower-pitched wheezy wheeeee, which gets louder then drops off; female call a quiet, harsh quack or kuk singularly or as short series; also a loud gaak, often repeated. NESTING Scrape lined with plant materials and down, usually in short grass, brush, or even in the open; 3–12 eggs; 1 brood; April–August.