Research from Poland adds to evidence from Latin American countries that compounds in used cigarette butts ward off parasites in bird nests.

The animal kingdom gives us rainbows of color with butterflies and chameleons, and clownfish, but birds give us just as much of a show. Among the peacock, the toucan, and the macaw, there’s a ...

Not all brightly colored birds are in the tropics. The U.S. has its own fair share of colorful avian friends and you can even ...