Barred Owl (Strix varia) juvenile, baby, owlet, young'un, tyke, fuzzball, etc.
I'm dedicating this shot to my Flickr friend Jim - www.flickr.com/photos/garnite/ - a fine photographer and wonderful person. He's fighting a serious infection in the hospital and needs all the prayers he can get right now.
Update 5-18-11 - I'm very sad to report that Jim lost his battle this morning. The world was a better place with him in it. He will be greatly missed by many. My best to his wife, Linda.