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Contact: Robin Ann Smith
National Evolutionary Synthesis Center (NESCent)

Grey Vireo

Caption: Grey vireos (Vireo vicinior) cope with noise by singing longer songs with higher maximum frequencies than their counterparts at quiet sites. In contrast, Plumbeous vireos (Vireo plumbeus) in the same noisy areas sing shorter songs with higher minimum frequencies.

Credit: Photo by Clinton Francis of the National Evolutionary Synthesis Center.

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Related news release: Songbirds tweak their tunes in different ways to cope with clamor

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