The American Bird Conservancy has published the first bird conservation status study to cover the full range of bird diversity in all 50 states and U.S. territories. Their findings concluded that
In total, of the 1,826 birds that were assessed, 273 species or subspecies (or 15%) were regarded as Secure . Some of these are birds (e.g., the familiar American Robin) that have been able to adapt well to habitat changes caused by humans, while more specialized species, for example, the Wood Thrush and Grasshopper Sparrow, have been unable to adapt to many of these changes. A further 850 birds (46%) were considered to be of Potential Concern , meaning that they are also currently safe, but may need more careful monitoring than those in the Secure category. The remaining birds were categorized as Vulnerable (547 birds – 30%), and At-Risk (156 birds – 9%)
Read full article at: First Conservation Assessment of All American Birds Shows More Than a Third Need Help.


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By: The House Window Threat To Birds « Natural History Wanderings on January 28, 2013
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By: United States birds at risk | Dear Kitty. Some blog on October 31, 2012
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