http://blogs.thatpetplace.com/thatbirdblog/2008/09/11/the-great-horned-owl-bubo-virginianus-%E2%80%93-encounters-in-nature-and-captivity-part-i-%E2%80%93-natural-history/
http://blogs.thatpetplace.com/thatbirdblog/2008/09/11/the-great-horned-owl-bubo-virginianus-%E2%80%93-encounters-in-nature-and-captivity-part-i-%E2%80%93-natural-history/