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Article
D. W. Podlesak, Auteur ; C. R. Blem, AuteurThe ability to accurately determine age of nestlings is useful in studies of reproductive performance of small birds. Because of a resurgence of interest in nest-box studies of reproductive performance of Prothonotary Warblers (Protonotaria citr[...]
Article
C. R. Blem, Auteur ; L. B. Blem, AuteurAt Flathead Lake Biological Station in western Montana, Violet-green Swallows (Tachycineta thalassina) sunbathed during a restricted period and under specific meteorological conditions in an apparent attempt to rid themselves of ectoparasites. S[...]
