Owls

Intriguing owls The owl family Species diversity Owls from coast to coast Origins of the species Life span Unique design The facial disk Body in camouflage Toes and talons Heavyweight eyes 24-hour sight Acute eye power Built-in protection Low-light vision Binocular viewing Red-eye reduction Head rotation Head bobbing Bills in bristles The bite Horns and ears Split-second hearing Where is that sound? Ear flaps Facial disk designs Disk feathers Facial expressions Owl size Differences of the sexes Slimming to trim Silent flight Equipped to conceal Striking a pose Color collections Fancy footwork Talons in force Sole scales Feather boots to bare feet Palate appeal Diet variety Hunting instincts A friend of the farmer Table manners Diminished sense of smell Digestible matter Pellets Nesting fancies Cavity nests Stick nests Ground nests Nest edifices Reusing the nest Owl vocalization Family calls Night calls Pair calls and duets Bill clacking Establishing a territory Courtship Mating Egg laying The clutch Nonstop incubation Hatching order Incubation across the species Life in the nest Growing up quickly Sharing in the bounty Demand for food Owlet development Flight practice Branching Gliding and grounding Learning to hunt No free lunch Leaving the natal territory To migrate or not The irruption years Winter advantage Owls—exceptional birds Featured owls Helpful resources About the author