ivory-billed woodpecker

A study published on November 17 found that there are 600 million fewer birds in Europe than there were just 40 years ago. The study was led by the Royal Society for the Protection of Birds (RSPB), which looked at...

The ivory-billed woodpecker, the best-known American species that had been declared threatened years ago, was declared extinct, along with 22 other species, by the U.S. government on Wednesday. The iconic bird -- which several bird watchers believed they saw just...