
Blue-gray gnatcatchers (Polioptila caerulea) are a common bird species throughout most of the United States, yet capturing a good image…

Blue-gray gnatcatchers (Polioptila caerulea) are a common bird species throughout most of the United States, yet capturing a good image…


A bird colliding with a window can happen at anytime of year. However, during bird migrations in spring and fall, the incidence of bird-window collisions increases as birds…



[Edited and Updated Nov. 1st, 2025]
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