PhysOrg Posted March 19, 2019 Share Posted March 19, 2019 Blackpoll warblers that breed in western North America may migrate up to 12,400 miles roundtrip each year, some crossing the entire North American continent before making a nonstop trans-ocean flight of up to four days to South America. Now a new study led by first author Bill DeLuca at the University of Massachusetts Amherst and project lead Ryan Norris at the University of Guelph, Ontario offers details of the feat. View the full article Quote Link to comment Share on other sites More sharing options...
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