20 marzo 2015
Every year, many bird researchers catch warblers, finches, thrushes and other feathered travelers to better understand their routes and migration patterns. A number of conservation initiatives seek to secure land to help species make their trek thousands of miles southward. But without a collective vision, these efforts may not be enough to protect birds in the Great Lakes region.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/LkjqdpIW_tg/150320091201.htm
