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- Title
Sexual aggression by intruders in hooded crow Corvus cornix.
- Authors
Zduniak, Piotr; Kosicki, Jakub; Yosef, Reuven
- Abstract
The hooded crow Corvus cornix is a west Palaearctic, solitary nesting, monogamous corvid. In the breeding season, populations are characterized by a social organization wherein breeding pairs are territorial and non-breeding individuals, called floaters, live in flocks. During a study of the breeding ecology of the hooded crow, conducted in a protected flooded area, we monitored nests with video cameras. We recorded two separate incidents when intruders attacked a female at the nest. We believe that she remained in the nest in order to prevent the strangers cannibalizing the nestlings by mantling over the brood. The spatio-temporal occurrence of these attacks suggests that the observed behaviour is intraspecific sexual aggression wherein non-breeding males mounted an immobilized female.
- Subjects
SEXUAL aggression; HOODED crow; MONOGAMOUS relationships in animals; CORVUS; ANIMAL breeding; PALEARCTIC
- Publication
Acta Ethologica, 2016, Vol 19, Issue 1, p91
- ISSN
0873-9749
- Publication type
Article
- DOI
10.1007/s10211-015-0222-z