Lesser Scaup

Sobre

O pato-bastardo é um pato mergulhador pequeno de zonas húmidas de água doce da América do Norte. Os machos têm cabeça preta iridescente com reflexos roxos, pescoço e peito pretos, e flancos brancos. É muito semelhante ao pato-islandez mas ligeiramente menor com cabeço mais arredondado. Hiberna em zonas húmidas costeiras e de interior. É um dos patos mergulhadores mais abundantes na América do Norte. Alimenta-se frequentemente de mexilhões de zebra invasores, que podem ter impactos de saúde negativos.

Physical Description

Measurement	Value	Imperial
Envergadura	39,6 cm	15.6 in
Peso	853,75 g	30.12 oz

Identificação

Plumagem

Males have peaked purple-glossed black head; white flanks; black breast and undertail; gray back. Yellow eye. Smaller than Greater Scaup with peaked crown. Females dark brown with white face patch. White wing stripe shorter.

Habitat & Range

Breeds on boreal lakes, ponds, and wetlands in Canada and Alaska. Winters on large lakes, reservoirs, coastal bays, and freshwater across the southern United States, Mexico, and Central America. Often in large rafts.

🌿 Wetland 🏖️ Coastal

Distribuição geográfica

Breeds in the forested interior of central Canada; winters on large lakes and rivers of the southeastern United States.

Diet & Feeding

Dives for molluscs, crustaceans, and aquatic invertebrates in coastal habitats; hard-shelled benthic prey dominates diet.

Estado de conservação

Least Concern

IUCN Red List

Comportamento e reprodução

Nidificação

Nest type: CP. Incubation: 21-22 days. Fledging: 45-50 days.

Tamanho da postura

6-14

Som

Canto

Male produces a soft, low purring call; female gives a harsh, nasal scaup sound. Voice nearly identical to Greater Scaup but slightly higher; flocks create a burbling, nasal chatter.

Taxonomia

Kingdom	Animalia
Phylum	Chordata
Class	Aves
Ordem	Anseriformes (Waterfowl)
Família	Anatidae (Ducks, Geese & Swans)
Genus	Aythya
Espécies	Aythya affinis

Distribution

Lesser Scaup has been recorded in 9 countries.

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Presente Not recorded

countries highlighted

🇹🇼 Taiwan 🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States 🇨🇴 Colombia 🇪🇨 Ecuador 🇻🇪 Venezuela

External Databases

Perguntas frequentes

What does the Lesser Scaup eat?

Dives for molluscs, crustaceans, and aquatic invertebrates in coastal habitats; hard-shelled benthic prey dominates diet.

Where does the Lesser Scaup live?

Breeds on boreal lakes, ponds, and wetlands in Canada and Alaska. Winters on large lakes, reservoirs, coastal bays, and freshwater across the southern United States, Mexico, and Central America. Often in large rafts.

Is the Lesser Scaup endangered?

The Lesser Scaup has a conservation status of Least Concern.

How does the Lesser Scaup nest?

Nest type: CP. Incubation: 21-22 days. Fledging: 45-50 days.

What does the Lesser Scaup sound like?

Male produces a soft, low purring call; female gives a harsh, nasal scaup sound. Voice nearly identical to Greater Scaup but slightly higher; flocks create a burbling, nasal chatter.

How big is the Lesser Scaup?

The Lesser Scaup has a wingspan of 39.6 cm, weight of 853.75 g.

What order and family does the Lesser Scaup belong to?

The Lesser Scaup (Aythya affinis) belongs to the order Anseriformes and the family Anatidae.