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Bacterias entéricas en la Gaviota Cangrejera (Larus atlanticus) y la Gaviota Cocinera (Larus dominicanus) en el estuario de Bahía Blanca, Argentina
1
Behaviour, identification and relationship with bamboos of the sooty grassquit (Tiaris fuliginosa) in Misiones, Argentina
1
Behavioural patterns of two flamingo species (Phoenicoparrus andinus and Phoenicopterus chilensis) and their relationship with weather conditions of M elincué Lagoon, Argentina, during winter
1
Bibliografía comentada sobre aves rapaces de Argentina
1
Bibliografía ornitológica
2
Bibliografía ornitológica de 1921
1
Bibliografía ornitológica de 1921 (Parte 1a.)
1
Bibliografía ornitológica de 1921 (Parte 2a.)
1
Bibliografía ornitológica de 1921-22
1
Bibliografía ornitológica de 1922
4
Bibliografía ornitológica de 1923, con complementos de 1922
1
Biogeografía y especiación en aves (Newton : The speciation and biogeography of birds)
1
Biology and conservation of the Andean Condor in Argentina
1
Biology and conservation of the Austral Parakeet (Enicognathus ferrugineus) in Argentina
1
Biology and conservation of the crowned eagle (Harpyhaliaetus coronatus) in Argentina
1
Biology and reproductive behavior of Ammodramus humeralis
1
Biología alimentaria del Halconcito Común Falco sparverius en el valle aluvial del río Paraná Medio, Argentina
1
Biología reproductiva de la Gaviota Capucho Café Larus maculipennis en Trelew, Patagonia
1
Biología reproductiva de los cormoranes Imperial (Phalacrocorax atriceps) y Cuello Negro (P. magellanicus) en el Golfo San Jorge, Chubut, Argentina
1
Biología reproductiva del Chimango (Polyborus chimango)
1
Biología reproductiva del Ostrero Pardo (Haematopus palliatus) en el sudeste de la provincia de Buenos Aires, Argentina
1
Biología reproductiva del Águila Mora (Geranoaetus melanoleucus) en la Patagonia sur, Argentina
1
Biología y conducta reproductiva de Ammodramus humeralis
1
Biología y conservación de la Cachaña (Enicognathus ferrugineus) en Argentina
1
Biología y conservación del Cóndor Andino (Vultur gryphus) en Argentina
1
Biología y conservación del Águila Coronada (Harpyhaliaetus coronatus) en Argentina
1
Bird assemblages at a burnt and an undisturbed site in a forest area in Northwest Patagonia, Argentina
1
Bird assemblages from Carilauquen Marshes (Llancanelo Lagoon, Mendoza, Argentina) considerations for their conservation
1
Bird assemblages in wooded streets along three coastal cities in southeastern Buenos Aires Province, Argentina
1
Bird assemblages of the Pre-Delta National Park (Entre Rìos, Argentina) Analysis of the ornithological importance of different environmental units
1
Bird communities along an urban gradient in Mar del Plata City, Argentina
1
Bird communities of human inhabited and uninhabited riparian forests in the middle Paraná River, Argentina
1
Bird densities along three tributaries of the Paraná River in eastern Paraguay
1
Bird species diversity and guild structure of a tropical fallow ricefield
1
Bird species richness and species of conservation concern of the Serranía del Aguaragüe protected area (southern Bolivia)
1
Birds and Mocovíes : a look at their relations in the 18th century at the meridional Gran Chaco region from jesuit sources
1
Birds in the biocultural heritage of rural crianceros of north-central Patagonia, Argentina
1
Birds in the narratives of the inhabitants of northern Córdoba : alternative ways of thinking about the augural values of birds
1
Birds of the Uruguayan coasts
1
Birds of the world (del Hoyo et al: Handbook of the birds of the world. Volume 12. Picathartes to tits and chickadees)
1
Black Vulture (Coragyps atratus) seasonal diet in rural and urban areas of north-western Patagonia
1
Breeding biology of grey-eagle buzzard (Geranoaetus melanoleucus) in Southern Patagonia, Argentina
1
Breeding biology of imperial cormorant (Phalacrocorax atriceps) and rock shag (P. magellanicus) at Golfo San Jorge, Chubut, Argentina
1
Breeding distribution and abundance of gulls and terns in the Bahía San Blas protected area, Buenos Aires
1
Breeding Ecology of the Imperial Shag (Phalacrocorax atriceps), in Deseada Island (Santa Cruz, Argentina)
1
Breeding, growth, and mortality of Speotyto cunicularia (Burrowing Owl) in Pampean agrosystems
1
Breves notas acerca de nidos y huevos de algunas aves de la cordillera de Mendoza
1
Breves notas sobre las aves antárticas
1