Contents
Patrones De Orientacian De Los Nidos De Passeriformes En Una Zona Arida Del Centro-oeste De Argentina
Eduardo T. Mezquida
Reproductive Biology of the Gray-crowned Yellowthroat (geothlypis Poliocephala Palpebralis) in Central Belize
Wilber E. Martinez, Victoria D. Piaskowski, and Mario Teul
Avifauna of the Guyana Southern Rupununi, with Comparisons to Other Savannas of Northern South America
Mark B. Robbins, Michael J. Braun, and Davis W. Finch
Are Daily Mortality Rates for Real and Artificial Clutches Comparable?
Catherine A. Lindell, Emily B. Cohen, and Jennifer S. Fritz
Use of Monk Parakeet (myiopsitta Monachus) Nests by Speckled Teal (anas Flavirostris) in Eastern Argentina
Jeffrey L. Port and Gwenda L. Brewer
Breeding Biology of the King Vulture (sarcoramphus Papa) in Southeastern Brazil
Eduardo Pio Mendes de Carvalho Filho, Giancarlo Zorzin, and Gustav V. A. Specht
Exito Reproductivo De La Gaviota De Patas Amarillas (larus Livens) Y De La Gaviota Parda (l Heermanni) En El Sur Del Golfo De California, Mexico
Enrique Lozano, Roberto Carmona, and Georgina Brabata
Short Communications
Algunas Aves Del Norte De Venezuela Como Hospederos De Ectoparasitos Ixodoideos
Carlos Verea and Orlando Aponte
Observaciones De La Biologaa Reproductiva Del Cardenal Coriano (cardinalis Phoeniceus) En La Isla De Margarita, Venezuela
Adriana Rodriguez-Ferraro and Ana Trujillo
Notes on the Nest of the Striated Softtail (thripophaga Macroura), with Comments on a Nest of Plain Softtail (t Fusciceps) and Relationships of the Genus Based on Nest Architechture
Juan Mazar Barnett and Guy M. Kirwan
Nidificacian Del Caracolero (haematopus Palliatus) En La Penansula De Paraguana, Venezuela
Adriana Rodriguez-Ferraro and Adrian B. Azpiroz
Morphometrics and Sexual Dimorphism of Some Neotropical Passerines
Diego Montalti, Grzegorz Kopij, and Rene Maragliano
Food Habits of Great Horned Owls (bubo Virginianus) in the Breeding Season in Lami Biological Reserve, Southern Brazil
Ana C. Tomazzoni, Ezequiel Pedo, and Sandra M. Hartz
First Description of the Nest with Breeding and Foraging Notes of the Versicolored Barbet (eubucco Versicolor)
A. Bennett Hennessey
First Description of the Nest of the Barred Puffbird (nystalus Radiatus) from North-western Ecuador
Harold F. Greeney, Jeff Port, and Florian Werner
Short Communications
Algunas Aves Del Norte De Venezuela Como Hospederos De Ectoparasitos Ixodoideos
Carlos Verea and Orlando Aponte
Observaciones De La Biologaa Reproductiva Del Cardenal Coriano (cardinalis Phoeniceus) En La Isla De Margarita, Venezuela
Adriana Rodriguez-Ferraro and Ana Trujillo
Notes on the Nest of the Striated Softtail (thripophaga Macroura), with Comments on a Nest of Plain Softtail (t Fusciceps) and Relationships of the Genus Based on Nest Architechture
Juan Mazar Barnett and Guy M. Kirwan
Nidificacian Del Caracolero (haematopus Palliatus) En La Penansula De Paraguana, Venezuela
Adriana Rodriguez-Ferraro and Adrian B. Azpiroz
Morphometrics and Sexual Dimorphism of Some Neotropical Passerines
Diego Montalti, Grzegorz Kopij, and Rene Maragliano
Food Habits of Great Horned Owls (bubo Virginianus) in the Breeding Season in Lami Biological Reserve, Southern Brazil
Ana C. Tomazzoni, Ezequiel Pedo, and Sandra M. Hartz
First Description of the Nest with Breeding and Foraging Notes of the Versicolored Barbet (eubucco Versicolor)
A. Bennett Hennessey
First Description of the Nest of the Barred Puffbird (nystalus Radiatus) from North-western Ecuador
Harold F. Greeney, Jeff Port, and Florian Werner