Owls are more often heard than seen. The Great Horn Owl may be two feet in length with talons like hooks of steel. The "horns" are, of course, merely ear-tufts that serve as definite identification marks for the species. The Great Horned Owl will attack birds as large as Canada Geese and it catches Grouse, Pheasant and Quail as well as many other birds. The Owls see very well in broad daylight, but their eyes are better adapted than the eyes of other birds for seeing in dim light. They also have remarkable hearing and their flight is practically noiseless. They often drop on their hapless victims unseens and anheard. Owls sawllow bones, pelts, and all, and the bones, fur, teeth and claws of mice, rats and other such prey. Those are later ejected from the Owl's mouth in the form of pellets, These are three or four inches long.