The Burrowing Owl - The Burrowing Owl and other Endangered Animal and Bird Species in Alberta, Canada and North America - http://www.raysweb.net/specialplaces/pages/owl.html
Burrowing Owl (Athene cunicularia) - Short article on the life history of Athene cunicularia by the California Department of Fish and Game. - http://www.delta.dfg.ca.gov/gallery/burowl.asp