PhysOrg Posted January 11, 2023 Share Posted January 11, 2023 Every autumn, billions of birds migrate across the eastern U.S. en route to their wintering sites. As the birds undertake their journeys, however, they are faced with increasing threats, including habitat loss, storms, feral cats and other predators, pesticides, collisions with buildings, and climate change. Not only are individual species impacted by these threats, but so is the migratory phenomenon itself.View the full article Quote Link to comment Share on other sites More sharing options...
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