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scaup    
n. 白胸鸭

白胸鸭

scaup
n 1: diving ducks of North America having a bluish-grey bill
[synonym: {scaup}, {scaup duck}, {bluebill}, {broadbill}]

Scaup \Scaup\ (sk[add]p), n. [See {Scalp} a bed of oysters or
mussels.]
1. A bed or stratum of shellfish; scalp. [Scot.]
[1913 Webster]

2. (Zool.) A scaup duck. See below.
[1913 Webster]

{Scaup duck} (Zool.), any one of several species of northern
ducks of the genus {Aythya}, or {Fuligula}. The adult
males are, in large part, black. The three North American
species are: the greater scaup duck ({Aythya marila}, var.
nearctica), called also {broadbill}, {bluebill},
{blackhead}, {flock duck}, {flocking fowl}, and {raft
duck}; the lesser scaup duck ({Aythya affinis}), called
also {little bluebill}, {river broadbill}, and {shuffler};
the tufted, or ring-necked, scaup duck ({Aythya
collaris}), called also {black jack}, {ringneck},
{ringbill}, {ringbill shuffler}, etc. See Illust. of
{Ring-necked duck}, under {Ring-necked}. The common
European scaup, or mussel, duck ({Aythya marila}), closely
resembles the American variety.
[1913 Webster]


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  • Greater scaup - Wikipedia
    The greater scaup (Aythya marila), just scaup in Europe or, colloquially, " bluebill " in North America, [3] is a mid-sized diving duck, larger than the closely related lesser scaup and tufted duck It spends the summer months breeding in Iceland, east across Scandinavia, northern Russia and Siberia, Alaska, and northern Canada
  • Greater Scaup Identification, All About Birds, Cornell Lab of Ornithology
    <p>The only circumpolar diving duck, the Greater Scaup breeds across the tundra regions in North America and Europe They congregate by the hundreds and thousands along the Pacific and Atlantic coasts during winter Here, black-and-white males and chocolatey-brown females bob along on the waves
  • Lesser scaup - Wikipedia
    The lesser scaup (Aythya affinis) is a small North American diving duck that migrates south as far as Central America in winter It is colloquially known as the little bluebill or broadbill because of its distinctive blue bill
  • Lesser Scaup vs Greater Scaup: Key Identification Field Marks
    Explore key field marks that separate the Lesser Scaup and Greater Scaup, including head shape, wing stripe, and subtle plumage differences
  • Greater Scaup - Ducks Unlimited
    The Greater Scaup is a medium-sized diving duck with a circumpolar breeding distribution across North America, Europe, and Asia They are difficult to distinguish from the Lesser Scaup
  • Lesser Scaup Identification, All About Birds, Cornell Lab of Ornithology
    The Lesser Scaup is a medium-sized diving duck with a small peak at the back of the head From the small peak, the back of the head and neck is flat, not rounded as it is on Greater Scaup
  • Scaup | Diving Duck, Sea Duck, North American | Britannica
    Scaup, (genus Aythya), any of three species of diving ducks (family Anatidae) The greater scaup (A marila), also called the big bluebill, breeds across Eurasia and most of the Nearctic region
  • SCAUP Definition Meaning - Merriam-Webster
    The meaning of SCAUP is any of three diving ducks (Aythya affinis, A novaeseelandiae, or A marila) with the male having a glossy purplish or greenish head and a black breast and tail
  • Greater or Lesser Scaup? Here Are the Biggest Differences Between the . . .
    Once Ring-necked and Tufted Ducks are out of the running, you’re left with the pair that’s toughest to tell apart: scaup During winter, location can be a deciding factor Greater Scaup tend to choose saltwater bodies, while Lesser Scaup are found in freshwater zones further inland
  • Greater Scaup - eBird
    Round-headed diving duck Males have black breast, medium gray back, white sides, and yellow eye Head appears black with a greenish sheen in good lighting, never purplish Females are brown overall, grayer on body in winter, with white patch at base of bill and yellow eye





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