A pair of ospreys is occupying the perch 180 feet above Pier 80.
As luck would have it, it's one of the few operational cranes on the San Francisco waterfront, and to keep its raptor guests safe, it's been shut down.
Eagle-like ospreys prey on fish, using their six-foot wingspan to swoop and dive. They've made a slow but steady comeback since DDT, a pesticide that threatened most raptors, was banned in 1972.
