Catalogue of birds of the Americas and the adjacent islands in Field Museum of Natural History. part 2, no. 1. Family Bubonide, Family Todidae, Family Tytonidae, Momotide, Family Psittacidae, Family Nyctibiidae, Family Steatornithidae, Family Caprimulgidae, Family Alcedinidae, Family Cypselidae : including all species and subspecies known to occur in North America, Mexico, Central America, South America, the West Indies, and islands of the Caribbean Sea, the Galapagos Archipelago, and other islands which may properly be included on account of their faunal affinities / Hellmayr, C. E. (Carl Eduard) Conover, Boardman, 1892-1950. text Chicago : Field Museum of Natural History, 1918. eng 315 p. : 25 cm. Part 1 by Charles E. Hellmayr and Boardman Conover; pts. 2-3 by Charles B. Cory (pt. 3, rev. and continued by C.E. Hellmayr); pts. 4-5 initiated by Charles B. Cory, continued by Charles E. Hellmayr; pts. 6-11 by Charles E. Hellmayr. Parts 2-11 published 1918-1938; pt. 1, nos. 1-4 published 1942-1949. Includes bibliographical references and indexes. Birds -- America.