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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 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
  • 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 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
  • 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
  • Greater Scaup - ID, Facts, Diet, Habit More | Birdzilla
    Greater Scaup is a medium-sized duck with a short, dark, squared tail, yellow eyes, and a small black tip on its big, blue-gray beak On average, they are 18 inches long, have a 28 inch wingspan, and weigh 2 3 pounds
  • Scaup Duck Facts | Aythya Marila - The RSPB Wildlife Charity
    Scaups are diving ducks with a resemblance to tufted ducks Only a handful breed in the UK every year, making them our rarest breeding ducks Find out more
  • Scaup | BTO
    Scaup are a winter visitor to the UK, with the majority found in Northern Ireland and Scotland They are predominantly a marine species, however they are occasionally found on inland waters, in particular, Loughs Neagh and Beg in Northern Ireland, which is now the key site for this species
  • 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 Larger than a Green-winged Teal, smaller than a Canvasback
  • Greater Scaup: Identification and Behaviors - Know Your Chickens
    The greater scaup is a lesser known duck species that’s found in parts of North America These diving ducks aren’t normally kept in captivity, but they’re fascinating wild animals to learn about Before we look at the details of this duck breed, let’s look at an overview of its characteristics
  • Santa Clara, California, United States - eBird
    17 Jun 2025 Juan Aguayo Shoreline Park--Shoreline Lake area Lesser Scaup Aythya affinis # 3 17 Jun 2025 Chris Overington





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