Contents
Field Study of Allopatry, Sympatry, Parapatry, and Reproductive Isolation in Steppe Birds of Patagonia
Francois Vuilleumier
Natural Range Expansion and Local Extirpation of an Exotic Psittacine -- an Unsuccessful Colonization Attempt
James W. Wiley
Comparison of Cloud-forest Avifaunas in Southeastern Brazil and Western Colombia
Edwin O. Willis and Karl L. Schuchmann
Index to Volume 3, 1992
Ornitología Neotropical
Short Communications
Apparent Site Fidelity by an Immature Northern Waterthrush Seiurus Noveboracensis in the Virgin Islands
Robert L. Norton
Presencia De Staphyloccocus Aureus En Algunas Especies De Patos (aves: Anatidae) En El Parana Medio, Argentina
Gabriel Marteleu, Juan C. Rozzatti, and Adolfo H. Beltzer
Short Communications
Apparent Site Fidelity by an Immature Northern Waterthrush Seiurus Noveboracensis in the Virgin Islands
Robert L. Norton
Presencia De Staphyloccocus Aureus En Algunas Especies De Patos (aves: Anatidae) En El Parana Medio, Argentina
Gabriel Marteleu, Juan C. Rozzatti, and Adolfo H. Beltzer