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Ruby-throated Hummingbird (Archilochus colubris)
Adults are metalic green on their backs, and greyish white on their chests. Males have ruby-red throat patch. Females are less colorful. Males are smaller than females. A medium-sized hummingbird, 7-9 cm (3-3.5") long.

ruby-throated hummer
Credit: Russ Thompson

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