Kent Woodruff is a wildlife biologist with the USFWS in Washington's Upper Methow Valley. He spearheaded the effort, which included The Trust for Public Land, to conserve a colony of rare Townsend's big-eared bats. An old cabin (left) that the bats had used for a nursery was relocated…

An endangered species in the northeastern part of the US, the Roseate Tern survives only with vigilant protection of its remaining nesting sites. One key site is the Stewart B. McKinney National Wildlife Refuge in Connecticut. The refuge's critical habitats help sustain nearly 300 bird…

Protection Island National Wildlife Refuge is one of the most important sanctuaries on the planet for nesting marine birds. It lies off the north coast of Washington State's Olympic Peninsula. Over 30,000 Rhinoceros Auklets - like this one - nest on Protection Island, and it's home to a…

A nestbox is a great asset for a garden. Natural materials are ideal. And no perches, please: they allow invaders to reach the eggs or the young. Place the nestbox well above the reach of predators. Birds - like this Black-capped Chickadee - don't want to draw attention to their nests, so…

Warblers can be hard to spot. But unlike many warblers that ply the tops of the trees, the Yellow-rumped Warbler is happy filtering through the lower branches of trees, providing flightless mortals with half a chance of seeing it. The Yellow-rumped Warbler is one of the most common…

Early spring in the East resounds with the percussive hammering of woodpeckers. Their rhythmic drumming functions as other birds' songs do, to broadcast over a long distance a clear statement of territory and mating rights. Learn about this Yellow-bellied Sapsucker and the others in this…

On the Skagit Flats, an hour north of Seattle, dramatic scenes of wildlife unfold every winter. "The flats" are broad, level deltas where the river drains into Skagit Bay. They offer a wildlife panorama with few equals in North America. Immense Bald Eagles stand ready to give chase for a…