How does an owl's wingspan determine where an owl finds its food?

Answer 1

Well, the larger the wingspan, the more powerful the wings are, so they are larger, and can fly longer distances. If they can fly over longer distances, they aren't really confined to the closer area around them.
In a nutshell, the larger the wingspan, the farther away they can fly to find food, whereas the smaller the wingspan, the closer they have to be to find food.
Does that make sense?

Answer 2

I found that usualy the shorter the wingspan, the more prone to hunting in wooded areas they are. The longer the wingspan the more prone to hunting open spaces they are. This is just my opinion. Some birders say that this is true and some don't.