To get us in the Halloween mood, we"re offering a seldom-seen sight—the Blakiston"s fish owl. Considered the largest of all living owls—about the size of a fire hydrant with a 6-foot wingspan—it"s among the rarest of owls, too. Experts estimate only a few thousand of these elusive birds remain, scattered in pockets of dense old-growth forests in northern Japan, the Russian Far East, northeastern China, and potentially North Korea.