Sap Feeding on Birch Trees by American Three-toed Woodpeckers

Authors

Theodore N. Bailey

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Recommended Citation

Bailey, Theodore N. (2008) "Sap Feeding on Birch Trees by American Three-toed Woodpeckers," Western Birds: Vol. 39 : Iss. 3 , Article 4.
Available at: https://digitalcommons.usf.edu/western_birds/vol39/iss3/4