To know what a tropical bird is, you first have to know where the tropics are. The tropics form a band around the equator, bordered by the Tropic of Cancer in the north and the Tropic of Capricorn in ...

Nature gives us one incredible surprise after another. If you're a bird lover and have been admiring bluebirds, jays, or barn swallows, you're not seeing a blue bird; it s actually brown. Here's how ...