The Northern Hawk Owl was popular in the other thread today, so I thought I'd give you some more.
Perch hunting lets owls use their sight and hearing to find food. This saves a lot of energy, and also body heat when it is cold.
Owl hears a vole hidden under the snow. Asymmetrical ears help them locate prey precisely, even when it is hidden. Owl launches into a dive.
Victory goes to the owl!
More owls and other animals on his Flickr.
Step 1. Be vertical
Step 2. Do not be not vertical
Step 3. ??
Step 4. Profit
I put Step 3 in another reply if you want to see it.
Some people might not like that part, so I left it out.