Contents
Diet Composition of the White-browed Blackbird (sturnella Superciliaris) at Buenos Aires Province, Argentina
Anibal R. Camperi, Vanina Ferretti, Armando C. Cicchino, Guillermo E. Soave, and Carlos A. Darrieu
Diet of Barn Owls (tyto Alba) in Forested Habitats of Northwestern Argentine Patagonia
Ana Trejo and Valeria Ojeda
Distribucian Y Uso De Dormideros Por El Candor Andino (vultur Gryphus) En Pagatonia Chilena
Alejandro Kusch
Nest Sites of Termitarium Nesting Birds in Se Peru
Donald J. Brightsmith
Accepters and Rejecters of Cowbird Parasitism in the New World Orioles (icterus Spp)
Spencer G. Sealy and Todd J. Underwood
Seleccian De Presas En Relacian Con Las Estrategias De Forrajeo De Aves Migratorias En Penansula Valdes, Argentina
Verónica Laura D’Amico, María de los Ángeles Hernández, and Luis Oscar Bala
Observations on the Breeding and Vocalizations of the Fulvousbreasted Flatbill (rhynchocyclus Fulvipectus) in Eastern Ecuador
Harold F. Greeney, Niels Krabbe, Mitch Lysinger, and W. Chris Funk
Riqueza Y Abundancia De Aves En Agroecosistemas Pampeanos Durante El Peraodo Post-reproductivo
Lucas M. Leveau and Carlos M. Leveau
Birds of the Laguna Kaucaya Area, a Semi-humid Valley in the Andean Foothills of Departamento Santa Cruz, Bolivia
Robb T. Brumfield, Oswaldo Maillard Z., Robert C. Faucett, Gustavo Sanchez, Vanya G. Rohwer, Juan Carlos Catari, C. Gregory Schmitt, Donna C. Schmitt, Rosa Strem, and Ana Maria Mamani
Short Communications
El Azulillo Brasileao (porphyrospiza Caerulescens) En La Regian Subandina De Bolivia
Oswaldo Maillard Z. and Juan Carlos Catari
The Egg and Incubation Period of the Peruvian Antpitta (grallaricula Peruviana)
Harold F. Greeney, Rudolphe A. Gelis, Erin C. Hannelly, and Philip J. DeVries
Levels of Vigilance Track Changes in Flock Size in the Greater Flamingo (phoenicopterus Ruber Ruber)
Guy Beauchamp and Raymond McNeil
Diet of the Barn Owl (tyto Alba) in the Lowlands of Antioquia, Colombia
Carlos A. Delgado-V. and Edmundo J. F. Catano-B.
Cooperative Breeding in the Tropical Mockingbird (mimus Gilvus) in the Panama Canal Zone
Eugene S. Morton, Bridget J. M. Stutchbury, and Walter H. Piper
Observations on a Nest of the Stygian Owl (asio Stygius) in the Central Brazilian Cerrado
Leonardo Esteves Lopes, Ricardo Goes, Samuel Souza, and Renata de Melo Ferreira
Short Communications
El Azulillo Brasileao (porphyrospiza Caerulescens) En La Regian Subandina De Bolivia
Oswaldo Maillard Z. and Juan Carlos Catari
The Egg and Incubation Period of the Peruvian Antpitta (grallaricula Peruviana)
Harold F. Greeney, Rudolphe A. Gelis, Erin C. Hannelly, and Philip J. DeVries
Levels of Vigilance Track Changes in Flock Size in the Greater Flamingo (phoenicopterus Ruber Ruber)
Guy Beauchamp and Raymond McNeil
Diet of the Barn Owl (tyto Alba) in the Lowlands of Antioquia, Colombia
Carlos A. Delgado-V. and Edmundo J. F. Catano-B.
Cooperative Breeding in the Tropical Mockingbird (mimus Gilvus) in the Panama Canal Zone
Eugene S. Morton, Bridget J. M. Stutchbury, and Walter H. Piper
Observations on a Nest of the Stygian Owl (asio Stygius) in the Central Brazilian Cerrado
Leonardo Esteves Lopes, Ricardo Goes, Samuel Souza, and Renata de Melo Ferreira
Obituaries
Maurice Bateman Hutt, 1919-1998
Martin Frost