Add Yahoo as a preferred source to see more of our stories on Google. Most phylogenies exist in academic papers and remain difficult to interpret. Cornell’s Birds of the World Phylogeny Explorer puts ...

They start to appear in fall and are in full view all winter through much of spring. They're at least 20 feet up and one or two feet wide. Sometimes, several bundles are scattered in the same tree.

Noticing a nest in a tree can motivate the mind to wonder about many things. Is it a bird nest or a squirrel nest? If a bird built the nest, what kind of bird was it? Why did the bird build its nest ...

When we make roads, houses or farmland, we often find large old trees in the way. Our response is often to lop off offending branches or even cut the tree down. This is a bad idea. The more we learn ...

The largest-ever study of bird genomes has produced a remarkably clear picture of the bird family tree. Published in the journal Nature today, our study shows that most of the modern groups of birds ...

Trees of all kinds benefit birds, whether it’s providing food, shelter, nesting material, or a convenient perch. Even dead trees and snags are useful, hosting insects for food and cavities for shelter ...