@wbztv: Video captured a stunning "birdnado" over Parker River National Wildlife Refuge in Newburyport, Massachusetts, where thousands of tree swallows gathered before their fall migration south. The swirling spectacle was shared by the U.S. Department of the Interior, which says the refuge's marshes provide an ideal stopover for the birds to rest and feed. Read more at the link. #massachusetts #newburyport #birdnado

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