This bird is nearly invisible—unless your are watching closely—it’s easy to see why the piping plover is so vulnerable. Each parent takes...

It’s hard to know who’s on the nest and who’s out getting breakfast. Both male and female piping plovers share all the duties. On the nest...

At the Sonoran Desert Museum last March, this cactus wren scolded me from the top of a saguaro cactus skeleton. These birds take charge...