Filial Cannibalism at a House Finch Nest

Publication Type:Journal Article
Year of Publication:2005
Authors:Gilbert, WM, NOLAN, PAULM, STOEHR, ANDREWM, Hill, GE
Journal:The Wilson Bulletin
Date Published:2005
ISBN Number:00435643
Keywords:Burrica, Burrica mexicana, Carpodacus, Carpodacus mexicanus, Fringillidae, Haemorhous, Haemorhous mexicanus
Abstract:We report on a female House Finch (Carpodacus mexicanus) eating one of her own eggs from a clutch of six on the 3rd day of incubation. This observation is a confirmed case of filial cannibalism in the egg stage. The reason for this behavior is unknown, but we suggest and discuss three possibilities: (1) an idiosyncratic response to human disturbance, (2) removal of a damaged egg from the nest, and (3) facultative brood reduction in the egg stage.
Short Title:The Wilson Bulletin
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