Unggas air (Waterfowl)
Redhead
Aythya americana
- tidak umum
- 40 km/h
- Risiko rendah
Diving duck with a copper-penny head and a soft purring call. Steals nests from other ducks to lighten its parenting load.
- Populasi
- ~1.2 million mature individuals, increasing; total population (all ages) estimated well over 1.4 million vs. a 760,000-bird NAWMP management target
- Habitat
- Breeds on small, semipermanent/permanent freshwater wetlands and prairie-pothole marshes with dense emergent vegetation over deep water; winters on shallow coastal bays, salt marshes, estuaries, lagoons, and large inland lakes/reservoirs (e.g. Gulf Coast, Great Lakes)
- Fakta menarik
- Redhead hens frequently lay their eggs in the nests of other Redheads or other duck species (brood parasitism, notably in canvasback nests), sometimes never building or incubating a nest of their own that season.
- Sebaran
- Breeds across the northern Great Plains and prairie regions of Canada and the north-central US; winters across the southern US, Mexico, and parts of the Caribbean/Central America (Cuba, Bahamas, Guatemala)
- Makanan
- Omnivorous diving duck: aquatic plants (pondweeds, wild rice, seagrass) especially in winter, with gastropods, mollusks, and insect larvae more important during the breeding season
- Ukuran
- 0,48 m
- Bentang sayap
- 0,79 m
- Masa hidup
- 10 tahun
