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- Title
CARCASS USE BY CRESTED CARACARAS (CARACARA CHERIWAY) AND INTERACTIONS WITH BLACK VULTURES (CORAGYPS ATRATUS) AND TURKEY VULTURES (CATHARTES AURA) IN SOUTH TEXAS.
- Authors
Buckley, Neil J.
- Abstract
Between 1988 and 1992, I collected data in South Texas on the foraging behavior and carcass use of Crested Caracaras (Caracara cheriway) and their interactions with Black Vultures (Coragyps atratus) and Turkey Vultures (Cathartes aura). Caracaras were regular visitors to carcasses of large mammals that I kept under continuous observation, being seen at 10 of 31 carcasses, although only in small numbers. Caracaras were clearly dominant over both species of vulture in aggressive interactions. They regularly displaced vultures from feeding positions at carcasses, and on one occasion, I observed a caracara kleptoparasitize a Turkey Vulture, which it forced to regurgitate food while in flight. However, despite their dominance over vultures, caracaras appeared not to be significant competitors for carrion because of their relative rarity. In addition to seeing them engage in agonistic interactions, I also observed caracaras and Black Vultures interact non-aggressively by allopreening each other. On 4 occasions, I saw individual caracaras solicit preening and be preened by 1 or 2 Black Vultures and twice reciprocate by preening a vulture in return.
- Subjects
TURKEY vulture; CORAGYPS atratus
- Publication
Bulletin of the Texas Ornithological Society, 2020, Vol 53, Issue 1/2, p31
- ISSN
0040-4543
- Publication type
Article