A male ruby-throated hummingbird sits on a perch.

Ruby-throated Hummingbird

Males stake out territories at luxuriant stands of flowers or at feeders, where they aggressively defend against competing males. Other creatures, including humans, may be similarly seen as intruders and are met with stylized displays meant to intimidate. The males tolerate females of the species, at least to a point. Females construct elaborate, walnut shell-sized

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