Unggas air (Waterfowl)
Lesser Scaup
Aythya affinis
- tidak umum
- 40 km/h
- Risiko rendah
North America's most abundant diving duck. Your message rides with the raft.
- Populasi
- ~3.7–3.8 million mature individuals; down from ~6.9 million in the 1970s
- Habitat
- Freshwater lakes, arctic/boreal marshes and ponds (plus reservoirs and agricultural ponds in the southern US) for breeding; during winter uses freshwater or brackish lakes, rivers, coastal lagoons, bays, and sheltered estuarine/marine waters
- Fakta menarik
- The Lesser Scaup is North America's most abundant diving duck, yet its purple (vs. green) head sheen is an unreliable field mark that varies with light — head shape (a peaked crown toward the back, less bulging forehead) is the more diagnostic way to separate it from the closely related Greater Scaup.
- Sebaran
- Breeds from Alaska through western/central Canada to the northern Great Plains and western Montana; winters from the Great Lakes/southern US and Pacific/Atlantic coasts south through Mexico, Central America, the West Indies, and Bermuda to northern South America (Colombia); rare vagrant to Europe, Hawaii, and Japan
- Makanan
- Omnivorous diving duck; mainly mollusks (mussels, clams) plus aquatic plant seeds and vegetation (sedges, bulrushes, pondweeds, wild celery, wild rice), supplemented with crustaceans, aquatic insects, and small fish especially in winter
- Ukuran
- 0,43 m
- Bentang sayap
- 0,73 m
- Masa hidup
- 8 tahun
