Chris Merkord Posted October 24, 2013 Share Posted October 24, 2013 Winter birdwatchers needed to track trends Windsor Star (blog) The expansion north can be seen in decades of research from citizen scientists who report on what they see at their backyard feeders between November and early April in Project FeederWatch. The information collected in Canada and the United States ... View the full article Link to comment Share on other sites More sharing options...
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