Snowy plovers often flock in numbers on some of the beaches near Santa Barbara. Sometimes it's hard to believe they are endangered. But they literally build their nests on sand: they rely on camoflage, and rapid and prolific reproduction, to protect their young from predators. Seagulls, skunks, and racoons all enjoy a snack of plover chicks, and beachgoing humans and their dogs carelessly destroy their nests too.