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Black-throated
Diver, known in North America as Arctic Loon (Gavia arctica),
is a medium-sized member of the loon or diver family.
It breeds in Eurasia and occasionally in western Alaska.
It winters at sea or on large lakes over a much wider
range. Breeding adults are 63 cm to 75 cm in length with
a 100 cm to 122 cm wingspan. They are like a smaller,
sleeker version of the Great Northern Diver. They have
a grey head, black throat, white underparts and chequered
black-and-white mantle. Non-breeding plumage is drabber
with the chin and foreneck white. Its bill is grey or
whitish and dagger-shaped. In all plumages a white flank
patch distinguishes this species from all other divers
including the otherwise almost identical Pacific Diver.
This species, like all divers, is a specialist fish-eater,
catching its prey underwater. It flies with neck outstretched.
The call is a yodelling high-pitched wail. |
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Black-throated
Diver, known in North America as Arctic Loon (Gavia arctica),
is a medium-sized member of the loon or diver family.
It breeds in Eurasia and occasionally in western Alaska.
It winters at sea or on large lakes over a much wider
range. Breeding adults are 63 cm to 75 cm in length with
a 100 cm to 122 cm wingspan. They are like a smaller,
sleeker version of the Great Northern Diver. They have
a grey head, black throat, white underparts and chequered
black-and-white mantle. Non-breeding plumage is drabber
with the chin and foreneck white. Its bill is grey or
whitish and dagger-shaped. In all plumages a white flank
patch distinguishes this species from all other divers
including the otherwise almost identical Pacific Diver.
This species, like all divers, is a specialist fish-eater,
catching its prey underwater. It flies with neck outstretched.
The call is a yodelling high-pitched wail. |
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