The Snow Bunting
Finches. New Naturalists Number 55
Studies in Behavior and Phylogeny of Certain New World Jays (Garrulinae)
Hardy, John William
Communications and Relationships in the Genus Tyrannus.
Smith, W. John
Songbirds of Turkey: An Atlas of Biodiversity of Turkish Passerine Birds
Roselaar, Cees S.
Warblers of the Great Lakes Region and Eastern North America
Earley, Chris G.
Geographic Variation in the White-crowned Sparrow, Zonotrichia Leucophyrs
BANKS, Richard C.
The Sparrows: A Study of the Genus Passer
Summers-Smith, J. Denis
Character Variation and Evolution of Sibling Species in the Empidonax difficilis-flavescenes Complex
JOHNSON, Ned K.
Life Histories of North American Thrushes, Kinglets, and Their Allies
Bent, Arthur Cleveland and Collaborators
Chickadees, Tits, Nuthatches & Treecreepers
Harrap, Simon; Quinn, David
The Fairy-Wrens: A Monograph of the Maluridae