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warbler: Media
bird
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Reed warbler (Acrocephalus scirpaceus)
Reed warbler (Acrocephalus scirpaceus).
Stephen Dalton—NHPA/Encyclopædia Britannica, Inc.
blackpoll warbler
Blackpoll warbler (Dendroica striata).
© Stubblefield Photography/Shutterstock.com
Chiffchaff
Chiffchaff (Phylloscopus collybita)
Common Chiffchaff (Phylloscopus collybita) perched on a branch
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