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Acorns, insects, and the diet of adult versus nestling Acorn Woodpeckers

Koenig, Walter D.; Schaefer, Douglas; Mambelli, Stefania; Dawson, Todd


The diet of Acorn Woodpeckers (Melanerpes formicivorus) in central coastal California consists of a mixture of high-quality (insects) and low-quality (stored acorns) food during the spring breeding season. We used stable isotope ratios obtained from blood samples to estimate possible differences in the proportion of these items being fed to nestlings and being consumed by breeding adults, as well as the extent to which the diet of nestlings shifts between insects and acorns during the nestling...[Show more]

CollectionsANU Research Publications
Date published: 2008
Type: Journal article
Source: Journal of Field Ornithology
DOI: 10.1111/j.1557-9263.2008.00174.x


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