Birds of Prey: Natural History and Conservation of North American Raptors
Snyder, Noel F.R.; Snyder, Helen A.
Atlas of the Breeding Birds of Maryland and the District of Columbia
Robbins, Chandler S.
The Birds of Illinois
Bohlen, H. David
Birds of the Indiana Dunes
Brock, Kenneth J.
A Field Guide to Hummingbirds of North America [HC]
Williamson, Sheri L.
Bird Communities at Sea Off California 1975 to 1983. SAB No. 11
Briggs, Kenneth T.; Tyler, William Breck; Lewis, David B.; Carlson, David R.
Birds of the Carolinas (1st ed)
Potter, Eloise F.; Parnell, James F.; Teulings, Robert P.
Birds of Phoenix and Maricopa County Arizona. Third edition
Witzeman, Janet and Troy Corman
Seabirds of Hawaii: Natural History and Conservation [HC]
Harrison, Craig S.
ABA Field Checklist - Weatherproof field card
American Birding Association
Warblers of the Great Lakes Region and Eastern North America
Earley, Chris G.
Oklahoma Breeding Bird Atlas [HC]
Reinking, Dan L.