From 9-foot tall ostriches to albatrosses with gargantuan wingspans, here are some of the biggest birds in the world.

Humans are the most common and widely spread species. With the full development of the limbs, humans have a large size. The ...

In captivity, quail consume less food than chickens. They require higher protein feed, according to Klein, but they are also ...

Tucson Bird Alliance and volunteers have counted the stunning birds each spring in their only U.S. breeding stronghold.

Many folks in southern coastal areas know about strand feeding, the remarkable fish-catching behavior demonstrated by ...

Decolonizing Paleoanthropology, West Valley Mobile Bookstore, Avian Flu Affects Arizona Egg Producer ...

Go on a self-guided tour at a one-of-a-kind research site in Arizona where you can explore sealed biomes simulating Earth's climate and ecosystems.

The developer of the Hitch Ranch residential project will soon begin habitat conservation efforts for the coastal California gnatcatcher.

According to a notice filed with the state, about 85 employees will be laid off after 6 million chickens died or were ...

Experience Arizona's pristine desert while hiking along incredible trails at the largest urban preserve in the Lower 48, just ...

Organ Pipe Cactus National Monument in Arizona sits along a primary migratory flyway for birds stopping during their long journeys elsewhere. Birders, photographers, and those who simply enjoy ...

The infections and culling of 6 million chickens at the southwest’s largest egg company may not just impact egg prices. It ...