Watching them watch you: U.S. Fish and Wildlife's Michael Woodbridge (above) looks across a Hopper Mountain canyon toward a California condor nest with volunteers from the nest-guarding program. Minutes later, the father condor swooped into the canyon to check out the humans on his way to attend to his chick. "It's like mountain climbing," said Woodbridge of the steep hiking and endless patience required to monitor condors. "It's a long slog and often tedious, but there are nice views at the top."