On a recent visit to Bethpage State Park, I went with Kathy Wegman, a retired environmental horticulturist, as she checked bluebird and tree swallow nest boxes. At the first bluebird nest box, a ...

Of the 44 bird nest boxes I tend at a golf course near our home, 36 are occupied as of May 31. There are 15 bluebird nests, 20 Tree Swallows nests, and one chickadee nest. Below are photos from those ...

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.

Concern about how climate change affects food security usually focuses on agriculture in resource-poor countries. But disruptions to weather patterns threaten food supplies for wildlife too. Walk ...