The lightest species of owl is the Elf Owl. Around six inches tall when fully grown, it is the size of a sparrow and weighs less than a golf ball! The largest owl in the world is the Eurasian ...

A great gray owl hunts from the top of a spruce tree along Minnesota Highway 61 on Saturday in Two Harbors. The great gray owl is a true owl, and is the world's largest species of owl by length. A ...

A worldwide review of snowy owls found far fewer of the birds than previously thought. The work included data from birds ...

It is the largest of the three spotted owl species and measures 18 to 19 inches in length with a 40-inch wingspan. Females are about 15 percent larger than males and weigh between one and two pounds.

They have large brown eyes outlined with dramatic white feathers. The Cuban screech owl is not well studied, and information about its diet is scarce, but, like most owl species, it likely feeds ...