You might think that the neotropics are one big mating party, but even in places that stay green and vibrant year-round, ...

(CNN) — From the rainforests of Central and South America to the savannas of northern Australia, the world’s equatorial regions are home to thousands of unique bird species, from macaws to toucans to ...

In a climate-controlled chamber in South Africa, a trumpeter hornbill pants rapidly, its throat pouch fluttering as ...

A bird's song is music to our ears -- and to the ears of his potential mates -- and a warning to other males to stay out of his territory. To Ignacio Moore, assistant professor of biology at ...

In their new treatise, Behavioral Ecology of Tropical Birds (Academic Press, London, 2001), they describe species that don’t fit the previously described pattern for territory defense, hormone surges, ...