A turkey vulture nest this year in an old silo in Mequon highlights the general increase and adaptability of the species in ...

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.

There are some 2,000 bird species in North America. A third of the species examined are rated as high or moderate concern for conservation due to declining numbers, habitat loss or other threats.