Contents
Alimentacion Invernal Del Siriri Colorado Dendrocygna Bicolor (aves: Anatidae) En El Valle Aluvial Del Rio Parana Medio, Argentina
Eduardo D. Mosso and Adolfo H. Beltzer
A Quantitative Survey of Speciation Phenomena in Patagonian Birds
Francois Vuilleumier
Ecologia Alimentaria De La Polla De Agua Negra Gallinula Chloropus Galeata (aves: Rallidae) En Un Ambiente Lenitico Del Rio Parana Medio, Argentina
Adolfo Hector Beltzel, Rafael A. Sabattini, and Maria C. Marta
Index to Volume 1, 1990
Ornitología Neotropical
Short Communications
Predation on Nestling Bare-throated Tiger-herons by a Great Black-hawk
Susan E. Lewis and Robert M. Timm
The Great Potoo (nyctibius Grandis) As a Probable Resident in Southern Mexico
J.L. Rangel-Salazar, R. Tercero, and P. L. Enriquez
Tropical Bird Species Numbers in Second-growth Vs Primary Forest Habitats at Large Scales
David A. Wiedenfeld
Nest and Eggs of Some Ecuadorian Birds
Manuel Marin A. and Manuel Carrion B.
Nest, Eggs, and Young of the Blackish Rail
Luis O. Naranjo
Short Communications
Predation on Nestling Bare-throated Tiger-herons by a Great Black-hawk
Susan E. Lewis and Robert M. Timm
The Great Potoo (nyctibius Grandis) As a Probable Resident in Southern Mexico
J.L. Rangel-Salazar, R. Tercero, and P. L. Enriquez
Tropical Bird Species Numbers in Second-growth Vs Primary Forest Habitats at Large Scales
David A. Wiedenfeld
Nest and Eggs of Some Ecuadorian Birds
Manuel Marin A. and Manuel Carrion B.
Nest, Eggs, and Young of the Blackish Rail
Luis O. Naranjo