A pair of eastern bluebirds. Source: Claudine Lamothe, via Flickr. Distributed under a CC BY-NC 2.0 license. Birdsong is often thought of as a male trait, but new research is changing that idea.

A pair of eastern bluebirds. Source: Claudine Lamothe, via Flickr. Distributed under a CC BY-NC 2.0 license. Birdsong is often thought of as a male trait, but new research is changing that idea.

Eastern bluebirds are voracious insect feeders, especially during nesting and rearing periods. Their primary diet includes flies, katydids, beetles, worms and spiders. Last Thursday was one of those ...

As the sun rises, a male bluebird begins singing atop a perch next to our living room window overlooking the backyard. He cocks his head at the window pane, then looks back toward a small tray ...