Peregrine falcons were nearly wiped out by DDT. Nature blogger Kate St. John explains why this bird, one of the fastest in the world, is likely to be nesting in a city near you.
Look up when you're in Philadelphia and you might just see a bald eagle. But what makes Philly a good home for this once-endangered bird? The Delaware.
Fewer eggs hatched in songbird nests exposed to noise of compressor stations than in nests near quieter locations. Birds were spending less time on the eggs.
The imperiled West Virginia northern flying squirrel needs rare red spruce forests to survive. So forests managers are planting a new one, ready in 50 years.
