Two new birds from Peru,

by Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957
Published 1925

New birds from central Peru,

by Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957
Published 1924

Catalogue of the Edward E. Ayer ornithological library . .

Published 1926

The birds of the neotropical genus Deconychura,

by Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957
Published 1929

Birds of the Marshall Field Peruvian Expedition, 1922-1923,

by Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957
Published 1930

A study of the tooth-billed red tanager Piranga flava,

by Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957, Zimmer, John T (John Todd), 1889-1957
Published 1929

Catalogue of the Edward E. Ayer Ornithological Library /

by Zimmer, John T (John Todd), 1889-1957
Published 1926