Janice E. Arndt
901 Highway 3A, Nelson, B.C. V1L 6J5
Abstract: Interspecific nest reuse is uncommon among passerines that build open cup nests. Herein I report my observations of Pacific-slope Flycatchers using the nest of an American Robin and of Eastern Kingbirds using the nest of a Bullock’s Oriole. Both nesting attempts were successful. I discuss possible factors that may have caused these birds to use another species’ nest.
Key words: American Robin, Bullock’s Oriole, Eastern Kingbird, Empidonax difficilis, Icterus bullockii, interspecific nest reuse, Pacific-slope Flycatcher, Turdus migratorius, Tyrannus tyrannus
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