Nice interacting poses, Cory. Flash was obviously necessary in this situation - you may be able to reduce the effect on the perch and moss by burning selectively. I like the soft textures of the plumage.
Good suggestions above. I would also tone down some of the lighter areas of the BG (especially near the right owl) and remove the bluish (cyan) cast on the owls. Did you run NR on the complete image? The owls' details seem smoothed out...
Good interaction on these young fellows, and I like the setting. The mosses add to the image.