Puzzlingly, many birds add human-made material to their nests with no obvious function – now there is evidence that these ...

When it comes to building nests, birds use a wide variety of tactics and materials. Some birds, like the puffin, burrow into ...

Bird nests can vary from crude and simple to intricate and complex. Predators, weather, habitat and the availability of ...

Chester County woman can lay claim to many such bluebirds as she helps protect and preserve our area’s bluebird population.

Modern cities are evolution engines. Urban snails in the Netherlands and lizards in Los Angeles have developed lighter shells ...