The fossil remains of a species of Hesperornis found in Montana - 1915
The supposed plumage of the Eocene Diatryma - 1930
A fossil hoatzin from the Miocene of Colombia - 1953
A new bird (family Cracidae) from the early Oligocene of South Dakota - 1957
A previously undescribed recurvirostrid from the Eocene of Utah - 1959
The systematic position of two Oligocene birds from Belgium - 1962
The name of a fossil rail and Its date of publication - 1963
A new owl from the Eocene of Wyoming - 1972
An immature specimen of Baptornis advenus from the Cretaceous of Kansas - 1977
Tarsometatarsus of Protostrix from the mid-Eocene of Wyoming - 1982
Genic variation, systematic, and biogeographic relationships of some galliform birds - 1983
A new species of teal from the Pleistocene (Rancholabrean) of Wyoming - 1985
Reidentification of "Phalacrocorax" subvolans Brodkorb as the earliest record of Anhingidae - 1986
Revision of "Falco" ramenta Wetmore and the Neogene evolution of the Falconidae - 1987
Molecular systematics of the Scaled Quail complex (genus Callipepla) - 1998
Structure and organization of canopy bird assemblages in central Amazonia - 2004
A tody (Alcediniformes: Todidae) from the early Oligocene of Germany - 2007