Expert explains why North American bird populations are declining

According to recent data, bird populations in North America have declined by approximately 2.9 billion birds, a loss of more than one in four birds since 1970. Experts say this bird loss will continue to grow unless changes ...

Society warns cuckoo bird in danger of extinction

(AP) -- Britain's cuckoo bird, known for its distinctive call, is in danger of extinction along with 51 other species, the Royal Society for the Protection of Birds said in a new report Thursday.

New Zealand fights to save its flightless national bird

New Zealand's treasured kiwi birds are shuffling around Wellington's verdant hills for the first time in a century, after a drive to eliminate invasive predators from the capital's surrounds.

Are all alien encounters bad?

The pages of ecological history are filled with woeful tales of destruction from non-native species -- organisms that originated elsewhere.

page 1 from 12