Tucked in Arizona's southeast corner is this understated park with its tranquil pond and wetlands, which attract a wide ...

Arizona’s desert birds are in decline, according to a national conservation report tracking long-term bird populations, prompting one conservation group to ask the federal government to take action on ...

MARBLE CANYON, Ariz. — Nestled among Arizona’s colossal Vermilion Cliffs, an inconspicuous building bustles with the sounds of flapping wings. Inside the remote building, no larger than a double wide ...

Biologists from the Arizona Game and Fish Department checked the health of bald eagle nestlings near Lake Pleasant, fitting them with leg bands to track the birds. Bald eagle populations dwindled in ...

North American bird populations are declining. A recent analysis of bird population trends across the U.S. and Canada suggests that we have lost 30% of our overall bird numbers since 1970, a reduction ...

Cancer affects virtually all multicellular organisms, birds included. A new study highlights the trade-off between investment in reproduction and DNA maintenance. Birds laying larger numbers of eggs ...