A new study finds North American bird populations keep dropping, and that decline is accelerating for many species.
Scientists studying data collected over more than three decades found accelerating losses. Their research offers clues about the causes.
Billions of birds that once filled North American skies have disappeared, and new science shows they are disappearing faster than ever.
As the global avian extinction crisis accelerates, the loss of large-bodied birds is destroying local biodiversity and ...
Conservation has long depended on measurement. Populations are counted, habitats mapped, trends plotted against baselines ...
FWS announced Feb. 9 that the well-known bird will be removed from the list as the population has grown in other states over ...
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