A grey adult male is uniquely white with black underneath, but it flies so low over the ground, birdwatchers identify it, and the brown female, by their white rumps. Not surprisingly, they nest on the ground. Two feathered facial disks, like an owl’s, help them to hear prey as well as see it. They will be here in winter, coursing over local fields and grasslands—if the vole and mouse crops are good.
Published Oct. 14, 2009, in the Wyoming Tribune Eagle. Text by Barb Gorges, photo by Pete Arnold.