
1) Corvine bird
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https://www.crosswordclues.com/clue/chough

Two species of chough f constitute the genus Pyrrhocorax of the Corvidae (crow) family of birds. These are the red-billed chough (Pyrrhocorax pyrrhocorax), and the Alpine or yellow-billed chough (P. graculus). The white-winged chough of Australia, despite its name, is a member of the family Corcoracidae and only distantly related. The choughs have...
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http://en.wikipedia.org/wiki/Chough

• (n.) A bird of the Crow family (Fregilus graculus) of Europe. It is of a black color, with a long, slender, curved bill and red legs; -- also called chauk, chauk-daw, chocard, Cornish chough, red-legged crow. The name is also applied to several allied birds, as the Alpine chough.
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http://thinkexist.com/dictionary/meaning/chough/

any of three crowlike birds with down-curved bills. In the family Corvidae (q.v.; order Passeriformes) are the common chough (Pyrrhocorax ...
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http://www.britannica.com/eb/a-z/c/78
Chough noun [ Middle English
choughe ,
kowe (and confer Middle English
ca ), from Anglo-Saxon
ceó ; confer also Dutch
kauw , Old High German
chāha ; perhaps akin to English
caw . √22. Confer
Caddow .]
(Zoology) A bird of t...
Found on
http://www.encyclo.co.uk/webster/C/72

The chough (Pyrrhocorax pyrrhocorax) is a bird of the crow family with red feet and bill. It is found on sea cliffs. In English folk lore the spirit of King Arthur migrated into a Chough, and as a result Choughs were protected in Cornwall.
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http://www.probertencyclopaedia.com/browse/BC.HTM

[
n] - a European corvine bird of small or medium size with red legs and glossy black plumage
Found on
http://www.webdictionary.co.uk/definition.php?query=chough
noun a European corvine bird of small or medium size with red legs and glossy black plumage
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https://www.encyclo.co.uk/local/20974

Bird
Pyrrhocorax pyrrhocorax of the crow family, Corvidae, order Passeriformes, about 38 cm/15 in long, black-feathered, with red bill and legs, and long hooked claws. Choughs are frugivorous and insectivorous. They make mud-walled nests and live on sea cliffs and mountains from Europe to East Asia, but are now rare. ...
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https://www.encyclo.co.uk/local/21221

any of several crowlike Old World birds, esp. Pyrrhocorax pyrrhocorax, of Europe.
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https://www.infoplease.com/dictionary/chough
No exact match found.