SAUKVILLE – Prairies are rich wildlife habitats. They are so bountiful, in fact, sometimes they even host species that evolved to breed elsewhere. For proof we need only look at two restored ...

Tree swallow nests across Pennsylvania are being collected for an investigation into the patterns that the common, fast-flying, cavity-nesting birds might incorporate into their nest construction.

Placement, construction, shape and material are essential nest considerations. Each species meets its own needs with its own style, developed over eons. Many bird species employ feathers in their ...

Nesting in a cavity — a hole in a tree, a burrow in a bank, or another enclosed space—gives a bird significant advantages. Cavity nests are generally safer than open-cup nests. The nest contents are ...

For Wildlife Recovery Association's Barb Rogers, tree swallows are swift, smart and stunningly beautiful. However, there is a lot more to them. Their irridescent colors of blue and green flash in the ...

The study is the first to track the timing of 12 geographically distinct breeding populations of tree swallows across the continent. Researchers measured how long birds spent at breeding grounds to ...