razorbill

(redirected from Alca torda)
Also found in: Dictionary, Thesaurus, Wikipedia.
Related to Alca torda: Razorbills

razorbill

, razor-billed auk
a common auk, Alca torda, of the North Atlantic, having a thick laterally compressed bill with white markings
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Razorbill

 

(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.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The fledging of the Guillemot Uria aalge with notes on the Razorbill Alca torda. Ibis 106:469-481.
The Maine islands are a meeting ground of north and south, providing the only breeding sites in the United States for Atlantic puffins (Fratercula arctica) and razorbill auks (Alca torda).
Er enghraifft, mae adar y mor yn cael eu diogelu ar y tir, adar fel y llurs (Alca torda, razorbill), y gwylog (Uria aalge, guillemot), y gwylog ddu (Cepphus grylle, black guillemot) a'r pal (Fratercula arctica, puffin) a'r hugan (Sula bassana, gannet), ond does 'na ddim yr un math o warchodaeth iddyn nhw allan ar y mor.