How to translate text using browser tools
1 December 2005 A Field Observation of the Head-down Display in the Bronzed Cowbird
Kimball L. Garrett, Kathy C. Molina
Author Affiliations +

We describe a photodocumented field observation in Sinaloa, Mexico, of a head-down (or “preening invitation”) display performed by a male Bronzed Cowbird (Molothrus aeneus), which elicited both grooming and pecking responses from a female Great-tailed Grackle (Quiscalus mexicanus). Previously, such displays by parasitic cowbirds and responses by conspecific or various heterospecific bird species have been documented mainly under aviary conditions; most field observations have involved Brown-headed (M. ater) and Shiny (M. bonariensis) cowbirds. The function and evolutionary significance of such interspecific interactions remain elusive, but continued documentation of such occurrences may help elucidate their biological significance.

Kimball L. Garrett and Kathy C. Molina "A Field Observation of the Head-down Display in the Bronzed Cowbird," The Wilson Bulletin 117(4), 410-412, (1 December 2005).
Received: 10 December 2004; Accepted: 1 August 2005; Published: 1 December 2005
Get copyright permission
Back to Top