The Influence of Environmental Cues and Anthropogenic Activity on Roost Departure Times in the Northwestern Crow (Corvus caurinus)

2015 ◽  
Vol 127 (4) ◽  
pp. 739 ◽  
Author(s):  
Mehdi Khadraoui ◽  
David P. L. Toews
Keyword(s):  
Anthropogenic Activity ◽  
Environmental Cues ◽  
Corvus Caurinus ◽  
Northwestern Crow

Northwestern Crow (Corvus caurinus)

1999 ◽  
Author(s):  
N. A. Verbeek ◽  
Robert W. Butler
Keyword(s):  
Corvus Caurinus ◽  
Northwestern Crow

COOPERATIVE BREEDING OF THE NORTHWESTERN CROW CORVUS CAURINUS IN BRITISH COLUMBIA

Ibis ◽  
2008 ◽  
Vol 123 (2) ◽  
pp. 183-189 ◽  
Author(s):  
Nicolaas A. M. Verbeek ◽  
Robert W. Butler
Keyword(s):  
British Columbia ◽  
Cooperative Breeding ◽  
Corvus Caurinus ◽  
Northwestern Crow

Natal pterylosis of the northwestern crow, Corvus caurinus

1991 ◽  
Vol 69 (6) ◽  
pp. 1534-1537 ◽  
Author(s):  
Nicolaas A. M. Verbeek
Keyword(s):  
British Columbia ◽  
The Body ◽  
Strait Of Georgia ◽  
Corvus Caurinus ◽  
Northwestern Crow

The number of natal down feathers (neossoptiles) and their arrangement in specific feather tracts of the body (pterylosis) are given for 19 nestlings of the northwestern crow, Corvus caurinus, from the Strait of Georgia, British Columbia. The natal pterylosis of the northwestern crow is compared with that of other members of the genus Corvus in the Nearctic and Palearctic regions. This comparison points out several differences in the capital, abdominal, and caudal tracts within the genus.

Northwestern Crow (Corvus caurinus)

2020 ◽  
Author(s):  
N. A. Verbeek ◽  
Robert W. Butler
Keyword(s):  
Corvus Caurinus ◽  
Northwestern Crow

Clam storage in a Northwestern Crow (Corvus caurinus): dispersion and sequencing

1985 ◽  
Vol 63 (4) ◽  
pp. 857-860 ◽  
Author(s):  
Paul C. James ◽  
Nicolaas A. M. Verbeek
Keyword(s):  
Experimental Study ◽  
British Columbia ◽  
Nearest Neighbour ◽  
Recovery Sequence ◽  
Neighbour Distance ◽  
Corvus Caurinus ◽  
Northwestern Crow ◽  
Very High ◽  
Sequence Position ◽  
Made In

An experimental study of clam storage by a Northwestern Crow (Corvus caurinus) was carried out on Mitlenatch Island, British Columbia, Canada. The crow was trained to take clams from a feeding table. His dispersion of the clams was studied using nearest-neighbour distance (NND). The distance clams were carried and the sequence of storage and recovery was also quantified. Median NND was significantly correlated with storage sequence position, as was NND with distance carried. The crow tended to recover the clams in the same order as he stored them, as storage sequence position was significantly correlated with recovery sequence position. The results were compared with other spatiotemporal studies of avian food hoarding. Recovery success of the crow was very high, he appeared to use memory to relocate his caches, as the majority of them were made in new sites, and he never revisited those already emptied.

Northwestern Crow (Corvus caurinus)

1999 ◽  
Author(s):  
N. A. Verbeek ◽  
Robert W. Butler
Keyword(s):  
Corvus Caurinus ◽  
Northwestern Crow

Northwestern Crow (Corvus caurinus)

1999 ◽  
Author(s):  
N. A. Verbeek ◽  
Robert W. Butler
Keyword(s):  
Corvus Caurinus ◽  
Northwestern Crow
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