We saw this Short-eared Owl at the Coaldale Birds of Prey Centre in southern Alberta. It was constantly moving, and I was unable to get a good, sharp image (apart from the eyes). I have seen several of these Owls in the wild outside the city.

"This owl looks almost headless in flight, and it beats its long wings slowly and deeply, like a big butterfly, as it courses erratically low over meadows and fields. Uncommon to common in Alberta from March to November." From "Birds of Alberta" by Fisher and Acorn.