title: [Comparative study of the ability to solve a string-pulling task in Corvidae].
abstract: 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.
authors.forename: M S
authors.initials: MS
authors.lastname: Bagotskaia
authors.forename: A A
authors.initials: AA
authors.lastname: Smirnova
authors.forename: Z A
authors.initials: ZA
authors.lastname: Zorina
mesh_terms: D000818:Animals; D046368:Crows / Q000502:physiology*; D011340:Problem Solving; D011597:Psychomotor Performance; D013045:Species Specificity; D053001:Tool Use Behavior