Eaton, Elon Howard.
1914. Birds of New York. New York State Mus. Mem. 12, pt. 2.
Eckstrom, Fannie Hardy.
1901. The woodpeckers.
Eifrig, Charles William Gustave.
1906. Notes on some northern birds. Auk, vol. 23, pp. 313-318.
1919. Notes on birds of the Chicago area and its immediate vicinity. Auk, vol. 36, pp. 513-524.
Emerson, William Otto.
1893. Random bird-notes from Merced Big Trees and Yosemite Valley. Zoe, vol. 4, pp. 176-182.
1899. Fall notes from Haywards, Cal. Bull. Cooper Orn. Club, vol. 1, p. 28.