Wildlife veterinarian Steven Osofsky finds ways to allow wild animals such as zebra and wild buffalo to rediscover ancient migration routes through southern Africa while helping cattle farmers to make a living.

They are resilient and immunologically cunning in ways we’re continuing to discover.

“If we’re talking about over decades, and a billion birds already are killed by industry annually, that does start really adding up pretty quickly,” says Amanda Rodewald, professor of natural resources. “We’re talking about a scale of mortality that’s substantial, that would be meaningful ecologically and biologically.”

Combining observations from human bird watchers with topographical information satellites and information about light at night, the Cornell Lab of Ornithology’s eBird program has just released animated migration maps.