Charlotte Taylor 
Great Horned Owls: Striking from Above [PDF ebook] 

Roosting in tall branches, the great horned owl owns the night. With giant eyes that take up much of its skull, the owl can see well enough at night to catch a mouse over great distance. This common hunter can be heard at night, hooting to other owls with two horn-like feathered tufts on the sides of its head. With full-color photographs and approachable text, this book shows readers how this owl lives and hunts for its prey in even the darkest night.