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(vertebrate zoology)
A family of large birds in the order Passeriformes having stout, long beaks; includes the crows, jays, and magpies.



a family of birds of the order Passeriformes. The birds are of medium and large dimensions (up to 65 cm in length) with powerful beaks and claws. They have nostrils covered with trichoid feathers (adult rooks are an exception) and straight tails, which are either rounded or stepped. Some members of Corvidae (magpies, tropical magpies, and jays) have very long tails. The plumage is thick and in many species has a metallic luster. There are more than 100 species. They are distributed widely and found everywhere but Antarctica, New Zealand, and certain ocean islands. Their haunts are varied and include forests, steppes, deserts, mountains, and populated areas.

Usually members of Corvidae nest in separate pairs and less frequently in colonies. They are monogamous. They build their nests in trees or bushes, on rocks, and on the roofs of buildings. They lay three to eight speckled eggs once a year in early spring. Most species are roosting and migratory birds. They are omnivorous. Some members of Corvidae are useful as exterminators of murine rodents and harmful insects; others are harmful and damage crops (corn and sunflowers, for example) or destroy the eggs and fledglings of other birds. In the USSR there are 17 species, including the Alpine chough, raven, crow, jackdaw, rook, chough, Siberian jay, magpie, and jay.


Ptitsy Sovetskogo Soiuza, vol. 5. Edited by G. P. Dement’ev and N. A. Gladkov. Moscow, 1954.


References in periodicals archive ?
This goal was achieved by quantifying the sensitivity and specificity of this antigen-capture assay to detect WNV in corvids collected as part of routine dead bird surveillance programs in Manitoba and Ontario.
6] PFU) on cloacal and oral (nasopharyngeal) swabs of corvid (1) and other passerine birds with experimentally induced, acute WNV infections (N.
Death counts among diving ducks (including tufted ducks) were >2,000 times higher than average during November 2016-January 2017, and the relative prevalence of deaths substantially increased (4-177 times) for dabbling ducks, herons, geese, swans, and corvids.
Corvids are considered a cosmopolitan genus, distributed globally, and therefore, are easily accessible for scientific pursuits.
So far only one other corvid species (Hoffmeister and Downes, 1964) and very few passerine species (Sparks et al.
Farmers say corvid attacks on sheep peaked in 2013 when late snow weakened surviving lambs and carrion crows exacted a grim toll as they feasted on the eyes and tongues of ewes and their lambs.
We conducted our study during September-February at Clam Beach, California, where corvids are abundant and plovers experience high reproductive failure compared with other sites in northern California.
Soaking food in birdbaths is a common behaviour in corvids and has been reported frequently (e.
Consolation behavior is rare in the animal kingdom, with empirical evidence previously provided only for the great apes, canines and certain corvids.
TEHRAN (FNA)- Scientists have long suspected that corvids -- the family of birds including ravens, crows and magpies -- are highly intelligent.