At Recology's recycling yard at San Francisco's southern edge, Indigo Redondo releases his three-year old Harris hawk, Nina, to keep swarms of seagulls from feasting on garbage and dropping scraps into the bay. This video from NBC Bay Area shows Redondo's technique for the task, for which he sometimes employs his dog, an ultrasonic sound bird repellent machine, and a laser pointer.

It's one of those dirty jobs that actually looks fun, and yes, someone has to do it. “All day long it’s just never ending,” Redondo told the network. “It’s a satisfying job... But at the same time it can be frustrating.”