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, razor-billed auk
a common auk, Alca torda, of the North Atlantic, having a thick laterally compressed bill with white markings



(Alca torda), a bird of the family Alcidae of the order Charadriiformes. Alca is the only genus. The bird’s back and head are blackish-brown, and the belly is white. Body length, 41-48 cm. The bill is high, laterally compressed, and has a white transverse stripe. The razorbill is found in the northern parts of the Atlantic Ocean; in the USSR it lives on the shores of the Barents and White seas, and in isolated cases, on Lake Ladoga. It nests in coastal rocks; both parents sit 35-36 days on the single egg. The diet consists of small fish. Razorbills winter in the sea. They are cautious birds and excellent swimmers and divers.

References in periodicals archive ?
Razorbill populations were observed as being unusually large in 2013 (Brinkley 2013) and may have made them more available as prey items for Snowy Owls.
NUMBERS DOWN A cormorant pictured by Kevin O'Hara HEAD WARDEN Farne Islands' David Steel with razorbill friend
Documented predators of adult Common and Thick-billed murres, and the related Razorbill include a wide range of large raptors and mammals, especially foxes (Alopex lagopus and Vulpes vulpes) and, at times, polar bears (Ursus maritimus) (Gaston and Hipfner 2000, Ainley et al.
At the RSPB's reserve in Sumburgh Head, Shetland, many guillemots and razorbills appear to have given up any attempt to breed.
Between them Skomer and Skokholm are home to more than 20,000 puffins as well as around 28,000 guillemots and 9,000 razorbills, making up the most important colony of cliff-nesting seabirds in southern Britain.
The birds, mainly guillemots and razorbills, have been washed up between Cornwall and West Sussex since Thursday.
Other seabird colonies are also in full swing, such as guillemots and razorbills which reside on the ledges until mid-July and kittiwakes and fulmars can be seen into August.
THE gales at the start of the week will leave custodians of west coast seabird colonies counting the cost, as the unusual conditions came just as cliffnesting razorbills, guillemots and kittiwakes were starting to hatch.
Emaciated seabirds found dead on East Coast beaches this year include fulmars, guillemots, razorbills and kittiwakes.
Up to 14,000 personnel in 40 warships and scores of aircraft and landing craft from 12 NATO stations are involved in the area that supports many puffins, razorbills, guillemots, and kittiwakes.
Among the wildlife depending on the area for homes and food are dozens of species of sea birds, including guillemots, razorbills, cormorants, three kinds of hawks, and the manx shearwater, of which half the world's population nests on the islands off the Pembrokeshire coast.
Scores more of the stricken birds - guillemots, razorbills and kittiwake - had to be rescued in Dorset, Devon and Cornwall.