How a new refuge in Ecuador will protect breeding habitat for the Esmeraldas Woodstar, one of the world’s smallest and rarest hummingbirds.

How researchers proved that outdoor cats kill large numbers of young birds during their first week out of the nest.

How tests being conducted in a unique tunnel at the Powdermill Avian Research Center promise to reduce a major source of bird mortality: collisions with glass.

How poisons meant to target rats are killing birds, including a mate of New York City's most famous Red-tailed Hawk, Pale Male.

How critically endangered Millerbirds were returned to the Pacific island of Laysan for the first time since introduced rabbits and other grazing mammals imperiled the birds about a century ago.

How a new Interior Department reforestation initiative promises to return former surface mines in the Appalachians to habitat suitable for Cerulean Warbler, Acadian Flycatcher, and other neotropical migratory songbirds.

Why metal and PVC tubes commonly used to mark mining claims in Nevada and other western states present a clear hazard to millions of birds.

Why the Department of the Interior should develop regulations for the wind-power industry that enforce key provisions of the Migratory Bird Treaty Act.

San Francisco's Standards for Bird-Safe Buildings promise to reduce bird collisions with buildings while saving money for building owners and operators.

The poisoning of thousands of Laysan Albatrosses at Midway Atoll National Wildlife Refuge, in the Pacific, has provoked a major cleanup of lead-based paint on the atoll.

A final recovery plan released by the U.S. Fish and Wildlife Service calls for removal of Barred Owls and may offer a new lease on life to the Northern Spotted Owl.

Why declining numbers of Red Knots overwintering in Tierra del Fuego, Chile, indicate that the rufa population of the shorebird deserves emergency listing under the Endangered Species Act.

How conservation easements will protect habitat between ProAves reserves in the Andes for the fast-declining Cerulean Warbler and 20 additional species that depend on South American mountain forests, including Golden-winged and other warblers.