A pair of piping plovers returns to their nesting area to find new threats to their safety and a danger-filled environment to raise their chicks. The pair finds a better place but is frightened by biologists who build an exclosure around their nest to keep out predators. Gradually they adjust to this strange, new structure and successfully raise four youngsters. The story is a gentle reminder that human behavior affects the lives of other creatures. But the book offers hope and encouragement that there are effective methods for helping endangered populations and that caring humans can make a big difference.