Attempted conspecific cavity usurpation by Red-headed Woodpeckers (Melanerpes erythrocephalus)

Jacob L. Berl, John W. Edwards, Jeff S. Bolsinger

Abstract


When breeding resources are scarce, intense competition for nest sites among cavity-nesting birds can result in agonistic encounters and cavity usurpation. Red-headed Woodpeckers (Melanerpes erythrocephalus) are known to usurp nest cavities from interspecific competitors, but the incidence of conspecific cavity usurpation remains unreported. We describe an attempted conspecific nest usurpation and depredation by a Red-headed Woodpecker in mixed-oak (Quercus) woodlands in northern New York State.

Keywords


intraspecific competition; nest cavity; Red-headed Woodpecker; Melanerpes erythrocephalus; usurpation; New York

Full Text:

PDF


DOI: http://dx.doi.org/10.22621/cfn.v127i4.1516



Volumes that are more than six years old are freely available courtesy of the Biodiversity Heritage Library.

 


Questions or problems with the website? Contact William Halliday (info -at- canadianfieldnaturalist -dot- ca).