Shrikes and Bush-Shrikes: Including Wood-Shrikes, Helmet-Shrikes, Flycatcher-Shrikes, Philentomas, B
The Birds of Paradise: Paradisaeidae (Bird Families of the World)
Frith, Clifford B.; Beehler, Bruce M.
Illustrations by Cooper, William T.
Swallows & Martins: An Identification Guide and Handbook [Helm]
Turner, Angela and Chris Rose
Sunbirds : A Guide to the Sunbirds, Flowerpeckers, Spiderhunters and Sugarbirds and of the World
Cheke, Robert A.; Mann, Clive F.
Diving Birds of North America
Johnsgard, Paul A.
Buntings and Sparrows: A Guide to the Buntings and North American Sparrows
Byers, Clive; Curson, Jon; Olsson, Urban
Owls of North America [PB]
Handbook of the Birds of the World, Volume 13: Penduline-tits to Shrikes [USED]
DEL HOYO, Josep, Andrew ELLIOTT, and Jordi SARGATAL, Editors
Sparrows and Buntings: A Guide to the Sparrows and Buntings of North America and the World
BYERS, Clive, Jon CURSON, and Urban OLSSON
The Birds of Paradise
Bird Families of the World
Winkler, David W., Shawn M. Billerman and Irby J. Lovette