PhysOrg Posted March 6, 2014 Share Posted March 6, 2014 The zone of overlap between two popular, closely related backyard birds is moving northward at a rate that matches warming winter temperatures, according to a study by researchers from the Cornell Lab of Ornithology, Villanova University, and Cornell University. The research will be published online in Current Biology on Thursday, March 6, 2014. Read the full article on PhysOrg Link to comment Share on other sites More sharing options...
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