ALONG BOULDER LAKE — Halle Lambeau had to duck just a bit when an adult tree swallow sprung for its next box and flew off, rattled by Lambeau’s effort to look inside the box for eggs. “You now have a ...

The researchers developed a new method for manipulating hormone levels in free-living birds: They dissolved a stress hormone (glucocorticoid) in a gel and put it on eggs in tree swallow nests. The ...

On a murky day toward the end of February, I went with a friend on the Boy Scout Camp Trail. Rain and warm temperatures had turned the snow to unpleasant deep slush and puddles in some places. As ...