Here's a cool behavior shot I got of a pair of Northern Hawk Owls this summer in Alaska. I was lucky enough to have this nest about 600-700m away from where I was camped while doing a Rusty Blackbird study, so I got to spend a lot of time watching these guys in their breeding grounds. The female would sit in her nest and call for the male until he finally brought her a vole from his cache in a nearby tree, then they would exchange the vole while giving each other this look.
What a treat to see this species breeding Nathanial! The female looks squished in the cavity. I guess they like it that way. Does the male incubate at all?