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 ...

Nest boxes help many species of birds, including eastern bluebirds, tree swallows and wood ducks, by providing protection during nesting season. Boxes for swallows and bluebirds are maintained by UWM.

You may find them on rooftops, beneath peeling tree bark or tipped-up roots, inside chimneys and beneath eaves of barns and sheds. Some birds choose sheer cliff faces, like the peregrine falcon.