Birds are dying at an alarming rate, and it's a warning sign to humans that the quality of our environments are getting worse ...

They’re sensitive to invasive species and land management. ... Vonnegut mentioned his “canary-bird-in-the-coal-mine theory” again in a 1973 interview with Playboy.

Animalia 75 percent of North America’s bird species are in decline, study says. Birds are rapidly vanishing from North America, with dramatic population losses in places that were once thought safe.

Forget the canary in a coal mine: today the danger zone is the entire U.S., and the sentinel species comprise a growing list that includes the Golden-cheeked Warbler, the Florida Scrub Jay and the ...