Skip to Main Content
Resource partitioning among woodpeckers in northeastern Oregon.Author(s): Bull Evelyn L.; Steven R. Peterson; Jack Ward Thomas
Source: Res. Note PNW-RN-444. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p
Publication Series: Research Note (RN)
Station: Pacific Northwest Research Station
Download Publication (1.59 MB)
DescriptionEight species of woodpeckers coexist in conifer forests in northeastern Oregon: northern flicker (Colaptes auratus); yellow-bellied (Sphyrapicus varius) and Williamson's (S. thyroideus) sapsuckers; and pileated (Dryocopus pileatus), hairy (Picoides villosus), white-headed (P. albolarvatus), three-toed (P. tridactylus), and black-backed (P. arcticus) woodpeckers. Tree diameter was the most important factor considered in selection of nest trees by northern flickers, Williamson's sapsuckers, and pileated and hairy woodpeckers. These species partitioned the nest habitat by occupying different forest stands or conditions of nest trees. Pileated woodpeckers occurred in grand fir (Abies grandis (Dougl. ex D. Don) Lindl.) stands and nested in snags dead 10 or more years. The same stands were used by Williamson's sapsuckers which nested in live or recently dead trees. Northern flickers and hairy woodpeckers nested in ponderosa pine (Pinus ponderosa Doug, ex Laws.) forests but flickers used larger snags.
- Visit PNW's Publication Request Page to request a hard copy of this publication.
- 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.
CitationBull Evelyn L.; Peterson,Steven R.; Thomas, Jack Ward. 1986. Resource partitioning among woodpeckers in northeastern Oregon. Res. Note PNW-RN-444. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 20 p
KeywordsWoodpeckers, birds, wildlife habitat
- A comparison of bird species composition and abundance between late- and mid-seral ponderosa pine forests
- Woodpecker abundance and habitat use in three forest types in eastern Texas
- Prescribed fire effects on wintering, bark-foraging birds in northern Arizona
XML: View XML