Skutch, A.

Manuscript—unpublished notes and personal correspondence.

Stevenson, H.

1882. On the plumage of the waxwing, Ampelis garrulus, Linnaeus, from the examination and comparison of a large series of specimens killed, in Norfolk, in the winter of 1866-'67. Trans. Norfolk and Norwick Naturalists' Soc., 3:326-344, 2 figs. in text, 1882.

Sutton, G. M.

, and

Burleigh, T. D.

1940. Birds of Las Vigas, Veracruz. Auk, 57(2):234-243, 1940.

1942. Birds recorded in the Federal District and States of Puebla and Mexico by the 1939 Semple Expedition. Auk, 59(3):418-423, 1942.