Batchelder, Ned
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Bulletin of the Oklahoma Ornithological Society Vol 40, No 3-4 (2007) - Articles
Black-chinned hummingbirds breed in Grady County
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Bulletin of the Oklahoma Ornithological Society Vol. 44 No. 3-4 (2011) - Articles
Hybridization between black-chinned (Archilochus alexandri) and ruby-throated (A. colubris) hummingbirds in Oklahoma
Abstract PDF