Family Crows and Jays (Corvidae)

Least Concern

Northwestern Crow (Corvus caurinus)


Taxonomy

French: Corneille d’Alaska German: Alaskakrähe Spanish: Cuervo de Alaska
Taxonomy:

Corvus caurinus

S. F. Baird

, 1858,

Fort Steilacoom, Washington, USA

.

See C. brachyrhynchos (above). Monotypic.

Distribution:

S Alaska (E from Kodiak I) and coast and islands of SW Canada S in USA to NW Washington.

Descriptive notes

42–45 cm; male 378–458 g, female 340–392 g. A small crow with medium-length tail and smallish bill. Plumage is entirely black, with purple sheen on head,... read more

Voice

Likely as complex as that of C. brachyrhynchos, but not so well studied. Coarse, deep-... read more

Habitat

Restricted to beaches, rocky shores, tidelands, and river courses of coast and nearby islands.... read more

Food and feeding

Omnivorous, but specializing on marine and terrestrial invertebrates, especially crabs (Decapoda), clams, mussels, and carrionWaiting for... read more

Breeding

Egg-laying Apr–Jun. Monogamous; occasionally (c. 20% of nests) with a single helper (offspring from previous year); loosely colonial... read more

Movements

Resident. Moves considerably outside breeding season to utilize locally abundant foods.

Status and conservation

Not globally threatened. Populations of crows within the range of this species increased substantially in 1960s and 1970s. More recently, urban populations have increased,... read more

Recommended citation

Marzluff, J. (2017). Northwestern Crow (Corvus caurinus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from https://www.hbw.com/node/60785 on 18 November 2017).