Skip to Main Content
Diet of nestling red-cockaded woodpeckers at three locationsAuthor(s): James L. Hanula; Donald Lipscomb; Kathleen E. Franzreb; Susan C. Loeb
Source: Journal of Field Ornithology. 71(1): 126-134.
Publication Series: Miscellaneous Publication
PDF: Download Publication (152 KB)
DescriptionWe conducted a 2-yr study of the nestling diet of red-cockaded woodpeckers (Picoides borealis) at three locations to determine how it varied among sites. We photographed 5939 nest visits by adult woodpeckers delivering food items for nestlings. In 1994, we located cameras near three nest cavities on the Lower Coastal Plain of South Carolina and near two cavities at the Savannah River Site, which is on the Upper Coastal Plain. In 1995, cameras were installed on the Savannah River Site and in the Piedmont National Wildlife Refuge, GA. The cameras recorded adults bringing 33 different types of food to nestlings. Wood roaches (Blattoidea: Blattellidae, Parcoblatta spp.) were the most common food, composing 50 percent of the diet overall. They were also the most common prey at each location and for all but one of the woodpecker groups studied. Wood roaches were recorded in 26 percent of the visits photographed on the Lower Coastal Plain and 62 percent of the nest visits on the Upper Coastal Plain in 1994. In 1995, wood roaches were recorded in 57 percent and 50 percent of the visits on the Upper Coastal Plain and Piedmont, respectively. Woodpeckers on the Lower Coastal Plain used blueberries (Vaccinum sp.) and sawfly larvae (Hymenoptera: Diprionidae, Neodiprion sp.), two dietary items not commonly used at the other locations. Adults at two locations providing [provided] snail shells to nestlings, possibly as an additional source of calcium. Morista's index of diet overlap (C) ranged from 0.94 to 0.99 for breeding males and females in the same group, from 0.63 to 0.99 among groups at the same location, and from 0.68 to 0.96 among locations. Because diet overlap of red-cockaded woodpecker nestlings at different geographical locations was within the range that occurred among groups at the same location, we conclude that nestling diets are similar across the geographical area studied, and that it varies little from year to year.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationHanula, James L.; Lipscomb, Donald; Franzreb, Kathleen E.; Loeb, Susan C. 2000. Diet of nestling red-cockaded woodpeckers at three locations. Journal of Field Ornithology. 71(1): 126-134.
- Arthropod prey of nestling red-cockaded woodpeckers in the upper coastal plain of South Carolina
- Influence of habitat and number of nestlings on partial brood loss in red-cockaded woodpeckers
- Availability and abundance of prey for the red-cockaded woodpecker
XML: View XML