[Comparative study of the ability to solve a string-pulling task in Corvidae].
The ability of hooded crows (Corvus cornix L.) and common ravens (Corvus corax L.) to pull up a bait suspended from a horizontal perch by a string was tested. It was shown that some birds of both species successfully solved the string-pulling task. Considerable inter-individual and inter-species differences in task performance are discussed.
Bagotskaia
M S
MS
Smirnova
A A
AA
Zorina
Z A
ZA
D000818:Animals; D046368:Crows / Q000502:physiology*; D011340:Problem Solving; D011597:Psychomotor Performance; D013045:Species Specificity; D053001:Tool Use Behavior