Neighboring groups of birds within the same species can create very different-looking nests — showing that their nest-building choices aren't solely controlled by instinct and the environment. Instead ...

A male and female Baltimore oriole feed their young while perched on their hanging nest, which is made of materials like thin twigs, plant cotton and bark strips. Spring is in the air — which means ...

Not every nest in trees is a bird nest! Here's what a squirrel nest looks like and how to deter squirrels from nesting in ...