They’ve installed “biosecurity truck washes” and employee showers. They sanitize visitors’ tires, blast noise cannons, or play predatory bird calls to scare off wild waterfowl that carry the virus.

Wild black-tailed prairie dogs use alarm calls to warn one another of predators, and some grassland birds are listening in. Photo credit: Andrew Dreelin, Smithsonian’s National Zoo and Conservation ...

A tiny bird in Australia has been spotted using fake hawk alarm calls to scare threats away from their nests to protect their ...