Additional information

No.

No. 1 Distribution of Amphibians and Reptiles in Guatemala and Belize, No. 2 Natural History and Management of the San Clemente Loggerhead Shrike, No. 3 Annotated Check-list of the Birds of East Africa, No. 4 Molt of the Genus Spizela (Passeriformes, Emberizidae) in Relation to Ecological Factors Affecting Plumage Wear, No. 5 On the Biology of Five Species of Swifts (Apodidae, Cypseloidinae) in Costa Rica