Snowy Owls Migrating South En Masse - Henry Tepper & Paula Goldberg

Snowy owls have escaped from their home in the boreal wilderness, colonizing huge chunks of North American terrain where they're traditionally unseen, including Bermuda, Florida and Hawaii. Scientists are uncertain what causes these "irruptions," but Mass Audubon's Henry Tepper suspects it has something to do with food availability. In the second half of the segment, one of the snowy owl explorers found its way to Washington D.C.'s McPherson Square, where it was hit by a bus and then a SUV. The owl was recovered by D.C.'s City Wildlife, where it was treated for minor injuries. City Wildlife's Paula Goldberg explains that the owl is now at an outdoor sanctuary, but suspects it won't be re-released to the wild.