books.google.com - The first systematic owl checklist for over 50 years to include subspecies and synonyms, Owls (Strigiformes) Annotated and Illustrated Checklist provides information on the type locality, habitat and distribution of 220 owl species and 539 taxa, as well as the location of museum collections of skins...http://books.google.com/books/about/Eulen_Strigiformes.html?id=PLhOcUhUR20C&utm_source=gb-gplus-shareEulen (Strigiformes)
