Santiago Imberti - Academia.edu (original) (raw)

Papers by Santiago Imberti

We present results of targeted surveys and casual observations of the little-known Magellanic Plo... more We present results of targeted surveys and casual observations of the little-known Magellanic Plover Pluvianellus socialis in southern Santa Cruz Province, Argentina, during 1998-2002. Included are the first records of the species using the shores of rivers during the breeding season and observations of flocks of 123 and 145 on the Gallegos and Chico estuaries during the non breeding season. These probably represent he largest concentrations of the species ever recorded, and indicate the importance of these sites to the species' conservation.

Los impactos ambientales que amenazan la viabilidad de los ecosistemas y su biodiversidad requier... more Los impactos ambientales que amenazan la viabilidad de los ecosistemas y su biodiversidad requieren de una sociedad comprometida y que sea proactiva en la generacion de respuestas y ejecucion de practicas amigables con el entorno. El estado critico del ambiente en que vivimos exige un compromiso por parte de las instituciones educativas, quienes deben formar, informar y reforzar conceptos que nos permitan encaminarnos hacia comunidades sustentables, conjugando una mejor calidad de vida con la conservacion de los recursos naturales. Bajo esta concepcion, trabajamos desde el ano 2000 en la ciudad de Rio Gallegos, (ubicada sobre la margen sur del estuario homonimo) en proyectos de investigacion y extension, teniendo como objetivos: contribuir al conocimiento y valorizacion ecologica del estuario, brindar herramientas para mejorar su manejo, capacitar actores locales, promover el ecoturismo y fomentar la participacion publica. Para ello, se desarrollaron actividades articulando acciones...

The Magellanic Oystercatcher Haematopus leucopodus is a monotypic species endemic to southern Pat... more The Magellanic Oystercatcher Haematopus leucopodus is a monotypic species endemic to southern Patagonia. Breeding (from September to January−February), it occurs along the coast on the Falklands/Malvinas and to some extent on Tierra del Fuego, but most pairs in continental South America are found at moist inland sites. Little is known about its breeding biology, especially for the continental population. Outside the breeding season, from January−February to August, it occurs exclusively along the coast, and individuals form large non-breeding flocks on the continent of South America. Here birds use both soft and hard substrates where they feed on buried clams and polychaetes as well as mussels, limpets and snails. There is virtually no infor-mation on life-history parameters, but individuals seem to be site-faithful to their non-breeding areas, which

Biological Journal of the Linnean Society, 2012

Bursts of speciation have followed colonization of remote oceanic islands by diverse taxa, a proc... more Bursts of speciation have followed colonization of remote oceanic islands by diverse taxa, a process evidenced by island endemics around the world. The present study explores whether the Malvinas-Falkland Islands (MFI), a relatively understudied archipelago off the South Atlantic coast of Patagonia, harbour endemic genetic lineages of passerine birds. Nine passerine species nest regularly in the MFI (Cinclodes antarcticus, Muscisaxicola maclovianus, Troglodytes cobbi, Cistothorus platensis, Turdus falcklandii, Anthus correndera, Melanodera melanodera, Sturnella loyca, and Carduelis barbata). Mitochondrial DNA (cytochrome c oxidase I sequences) are used to quantify and compare divergence between insular and continental populations, finding genetic patterns to vary across these nine species. Most MFI passerines do not show significant genetic differentiation from continental populations, whereas C. platensis, M. melanodera, and T. falcklandii are modestly diverged. Finally, T. cobbi differes markedly from its closest continental relative Troglodytes aedon, a result that is confirmed using nuclear and vocal data. The study also identifies broadly divergent lineages within continental populations of C. platensis and T. aedon. Taken together, these results suggest that the land bird populations of the MFI were established at different times. Troglodytes cobbi is the oldest MFI land bird, splitting from continental T. aedon during the Great Patagonian Glaciation of the Pleistocene.

Waterbirds, 2015

Information on Nearctic shorebirds is scarce for inland South America. This work presents informa... more Information on Nearctic shorebirds is scarce for inland South America. This work presents information on abundance and habitat use of the species that inhabit water bodies in the highlands of western Santa Cruz province, Argentina. Surveys were conducted during four austral summers (January to March) from 2010 to 2013, with annual data collected at 378 lakes. Results indicate that species distribution varies from year to year. The most abundant species was Baird's Sandpiper (Calidris bairdii). Habitat modeling showed that this species favors 'depression' type lakes and that individuals do not distribute uniformly across the area, with higher yearly abundance at Strobel Plateau and the plateaus of the 'Austral complex'. Size of the water body is positively related to abundance of White-rumped Sandpiper (C. fuscicollis) and Wilson's Phalarope (Phalaropus tricolor). Results show that these highlands are sites of interest for the conservation of migratory shorebirds.

Bird Conservation International, 2012

SummaryWe estimated the present population size of the Hooded Grebe Podiceps gallardoi and compar... more SummaryWe estimated the present population size of the Hooded Grebe Podiceps gallardoi and compared it with the population in 1985. During the breeding seasons 2009/2010 and 2010/2011 we monitored 251 lakes on the main plateaus of Santa Cruz province, southern Patagonia, Argentina, where the entire population of Hooded Grebes spends the breeding season. During 2009/2010 we monitored 131 lakes and observed 521 Hooded Grebes in 16 lakes, while during 2010/2011 we monitored 186 lakes and observed 535 individuals in 14 lakes. At both breeding seasons five lakes contained near 85% of the population. We only observed 6 breeding colonies, two in 2009/2010 and four in 2010/2011, totalling 242 nesting attempts. Nearly 90% of the nests failed during egg stage, mainly due to strong winds and depredation by American mink Neovison vison. Only 28 nests hatched chicks, but none of the young survived to independence due to low temperatures. We compared the results of our 2010/2011 survey with one c...

Bird Conservation International, 2012

SummaryThe Hooded Grebe Podiceps gallardoi has been uplisted to globally ‘Endangered’ recently ma... more SummaryThe Hooded Grebe Podiceps gallardoi has been uplisted to globally ‘Endangered’ recently mainly because of the rapid population decline suffered within the last 20 years due to factors such as nest depredation by Kelp Gull Larus dominicanus as well as destruction of colonies by wind and lake desiccation. During a census of Hooded Grebes during the 2010/2011 breeding season we found a new predator that has not previously been mentioned, the American mink Neovison vison. One individual mink killed 33 Hooded Grebes and consequently destroyed one of the five colonies found in that breeding season. Due to the characteristics of the waterbird assemblage in the area, the impact of mink could be catastrophic.

Bird Conservation International, 2013

SummaryWe present the results of searches for the Austral Rail Rallus antarcticus in Argentine an... more SummaryWe present the results of searches for the Austral Rail Rallus antarcticus in Argentine and Chilean Patagonia between January 1998 and February 2006 and from subsequent visits. We surveyed 58 localities and found the rail in 22, which collectively cover approximately 85 km2 of habitat. A maximum of 175 individuals were detected. This poorly known species was rediscovered in 1998; since then, it has been found in 18 additional localities, providing further data on distribution, habitat and seasonal movements. During the searches, we found that the species faces different threats, such as reduction of wetlands due to cattle grazing, burning and abnormal water management, but also the presence of American mink Neovison vison. However, due to the lack of prior information we conclude that the species should be maintained as Vulnerable.

Neotropical Birding 9 Above: Observing a group of four Hooded Grebes Podiceps gallardoi at a lago... more Neotropical Birding 9 Above: Observing a group of four Hooded Grebes Podiceps gallardoi at a lagoon on the Strobel plateau, Argentina, February 2011 (Kini Roesler) Updating our article in Neotropical Birding 6, three Argentine researchers describe how the latest news from the remote Patagonian breeding grounds of the globally threatened Hooded Grebe Podiceps gallardoi is almost depressingly worrying. They reveal that an introduced North American mustelid is just the latest in a series of threats that is potentially taking the species to the brink of extinction. >> FEATURE FINAL COUNTDOWN FOR THE HOODED GREBE

Anales del Instituto de la Patagonia

Ornithology Research

Santa Cruz province is the second largest province in Argentina, and also the least populated. Th... more Santa Cruz province is the second largest province in Argentina, and also the least populated. This province makes up the southern tip of continental Argentina. Althought it has low population density and is remote from big cities, in the past it received well-deserved attention from researchers. This was probably due to the presence of many interesting species, among them some threatened, with taxonomic singularities, and/or endemism. The goal of this work is to update knowledge of the distribution and natural history of 21 species from Santa Cruz, including five new to the province.

Revista del Museo Argentino de Ciencias Naturales

Revista del Museo Argentino de Ciencias Naturales, 2008

The birds (Passeriformes) of Santa Cruz province, Argentina, are analyzed based on three main sou... more The birds (Passeriformes) of Santa Cruz province, Argentina, are analyzed based on three main sources: specimens housed in the Museo Argentino de Ciencias Naturales of Buenos Aires (MACN), in the Félix de Azara Collection, Buenos Aires (CFA), in the Museo de La Plata, La Plata (MLP), in the Fundación Miguel Lillo, Tucumán (FML) and in the National Museum of Natural History, Washington (USNM). The data were obtained from bibliographical citations which include precise localities and from field observations. A list of 75 species belonging to 13 families is included. First records with precise localities are provided for five species. New localities are cited for 64 species.

Ornitologia Neotropical, 2008

... La Angelina (SC) Laguna Little Hill, Ea. Morro Chico (SC) Laguna Travesía, Ea. El Roda (SC) E... more ... La Angelina (SC) Laguna Little Hill, Ea. Morro Chico (SC) Laguna Travesía, Ea. El Roda (SC) Ea. Rincón de los Morros río Penitente (SC) Laguna c/RN 3 (SC) Laguna c/RN 3 (SC) Lagunas Meseta del Strobel (SC) Lagunas Meseta del Strobel (SC) Laguna La Gruta (SC ...

El Hornero, Aug 1, 2007

... SANTIAGO IMBERTI 1, CARLOS D. AMORÓS 2 Y SONIA A. CADIERNO 2 ... zona de distribución durante... more ... SANTIAGO IMBERTI 1, CARLOS D. AMORÓS 2 Y SONIA A. CADIERNO 2 ... zona de distribución durante el pe-ríodo estival el norte de la isla de Tierra del Fuego (en Argentina y Chile) y la parte conti-nental de la XII Región (de Magallanes) en Chile (Benegas 1997, Matus et al ...

Revista del Museo …, 2009

... Carlos Aquiles Darrieu 1 , Aníbal Raúl Camperi 1,2 & Santiago Imberti 3. ... Parque Nacio... more ... Carlos Aquiles Darrieu 1 , Aníbal Raúl Camperi 1,2 & Santiago Imberti 3. ... Parque Nacional Perito Moreno (Chebez et al., 1998); Estancia El Cóndor, Bahía Posesión (Cadierno & Amorós, 1999); Monte ... P. Miles, MACN; Los Antiguos, Lago Buenos Aires, 1 M, 11 Sep 1983, col. ...

El hornero, 2004

... Santiago Imberti 1,3 , Silvina M. Sturzenbaum 2 y Martina McNamara 1. 1 Universidad Nacional ... more ... Santiago Imberti 1,3 , Silvina M. Sturzenbaum 2 y Martina McNamara 1. 1 Universidad Nacional de la Patagonia Austral. ... pers.). Este ambiente recibe aguas de los ríos Gallegos y Chico, siendo el primero su principal aporte de agua dulce. ...

We present results of targeted surveys and casual observations of the little-known Magellanic Plo... more We present results of targeted surveys and casual observations of the little-known Magellanic Plover Pluvianellus socialis in southern Santa Cruz Province, Argentina, during 1998-2002. Included are the first records of the species using the shores of rivers during the breeding season and observations of flocks of 123 and 145 on the Gallegos and Chico estuaries during the non breeding season. These probably represent he largest concentrations of the species ever recorded, and indicate the importance of these sites to the species' conservation.

Los impactos ambientales que amenazan la viabilidad de los ecosistemas y su biodiversidad requier... more Los impactos ambientales que amenazan la viabilidad de los ecosistemas y su biodiversidad requieren de una sociedad comprometida y que sea proactiva en la generacion de respuestas y ejecucion de practicas amigables con el entorno. El estado critico del ambiente en que vivimos exige un compromiso por parte de las instituciones educativas, quienes deben formar, informar y reforzar conceptos que nos permitan encaminarnos hacia comunidades sustentables, conjugando una mejor calidad de vida con la conservacion de los recursos naturales. Bajo esta concepcion, trabajamos desde el ano 2000 en la ciudad de Rio Gallegos, (ubicada sobre la margen sur del estuario homonimo) en proyectos de investigacion y extension, teniendo como objetivos: contribuir al conocimiento y valorizacion ecologica del estuario, brindar herramientas para mejorar su manejo, capacitar actores locales, promover el ecoturismo y fomentar la participacion publica. Para ello, se desarrollaron actividades articulando acciones...

The Magellanic Oystercatcher Haematopus leucopodus is a monotypic species endemic to southern Pat... more The Magellanic Oystercatcher Haematopus leucopodus is a monotypic species endemic to southern Patagonia. Breeding (from September to January−February), it occurs along the coast on the Falklands/Malvinas and to some extent on Tierra del Fuego, but most pairs in continental South America are found at moist inland sites. Little is known about its breeding biology, especially for the continental population. Outside the breeding season, from January−February to August, it occurs exclusively along the coast, and individuals form large non-breeding flocks on the continent of South America. Here birds use both soft and hard substrates where they feed on buried clams and polychaetes as well as mussels, limpets and snails. There is virtually no infor-mation on life-history parameters, but individuals seem to be site-faithful to their non-breeding areas, which

Biological Journal of the Linnean Society, 2012

Bursts of speciation have followed colonization of remote oceanic islands by diverse taxa, a proc... more Bursts of speciation have followed colonization of remote oceanic islands by diverse taxa, a process evidenced by island endemics around the world. The present study explores whether the Malvinas-Falkland Islands (MFI), a relatively understudied archipelago off the South Atlantic coast of Patagonia, harbour endemic genetic lineages of passerine birds. Nine passerine species nest regularly in the MFI (Cinclodes antarcticus, Muscisaxicola maclovianus, Troglodytes cobbi, Cistothorus platensis, Turdus falcklandii, Anthus correndera, Melanodera melanodera, Sturnella loyca, and Carduelis barbata). Mitochondrial DNA (cytochrome c oxidase I sequences) are used to quantify and compare divergence between insular and continental populations, finding genetic patterns to vary across these nine species. Most MFI passerines do not show significant genetic differentiation from continental populations, whereas C. platensis, M. melanodera, and T. falcklandii are modestly diverged. Finally, T. cobbi differes markedly from its closest continental relative Troglodytes aedon, a result that is confirmed using nuclear and vocal data. The study also identifies broadly divergent lineages within continental populations of C. platensis and T. aedon. Taken together, these results suggest that the land bird populations of the MFI were established at different times. Troglodytes cobbi is the oldest MFI land bird, splitting from continental T. aedon during the Great Patagonian Glaciation of the Pleistocene.

Waterbirds, 2015

Information on Nearctic shorebirds is scarce for inland South America. This work presents informa... more Information on Nearctic shorebirds is scarce for inland South America. This work presents information on abundance and habitat use of the species that inhabit water bodies in the highlands of western Santa Cruz province, Argentina. Surveys were conducted during four austral summers (January to March) from 2010 to 2013, with annual data collected at 378 lakes. Results indicate that species distribution varies from year to year. The most abundant species was Baird's Sandpiper (Calidris bairdii). Habitat modeling showed that this species favors 'depression' type lakes and that individuals do not distribute uniformly across the area, with higher yearly abundance at Strobel Plateau and the plateaus of the 'Austral complex'. Size of the water body is positively related to abundance of White-rumped Sandpiper (C. fuscicollis) and Wilson's Phalarope (Phalaropus tricolor). Results show that these highlands are sites of interest for the conservation of migratory shorebirds.

Bird Conservation International, 2012

SummaryWe estimated the present population size of the Hooded Grebe Podiceps gallardoi and compar... more SummaryWe estimated the present population size of the Hooded Grebe Podiceps gallardoi and compared it with the population in 1985. During the breeding seasons 2009/2010 and 2010/2011 we monitored 251 lakes on the main plateaus of Santa Cruz province, southern Patagonia, Argentina, where the entire population of Hooded Grebes spends the breeding season. During 2009/2010 we monitored 131 lakes and observed 521 Hooded Grebes in 16 lakes, while during 2010/2011 we monitored 186 lakes and observed 535 individuals in 14 lakes. At both breeding seasons five lakes contained near 85% of the population. We only observed 6 breeding colonies, two in 2009/2010 and four in 2010/2011, totalling 242 nesting attempts. Nearly 90% of the nests failed during egg stage, mainly due to strong winds and depredation by American mink Neovison vison. Only 28 nests hatched chicks, but none of the young survived to independence due to low temperatures. We compared the results of our 2010/2011 survey with one c...

Bird Conservation International, 2012

SummaryThe Hooded Grebe Podiceps gallardoi has been uplisted to globally ‘Endangered’ recently ma... more SummaryThe Hooded Grebe Podiceps gallardoi has been uplisted to globally ‘Endangered’ recently mainly because of the rapid population decline suffered within the last 20 years due to factors such as nest depredation by Kelp Gull Larus dominicanus as well as destruction of colonies by wind and lake desiccation. During a census of Hooded Grebes during the 2010/2011 breeding season we found a new predator that has not previously been mentioned, the American mink Neovison vison. One individual mink killed 33 Hooded Grebes and consequently destroyed one of the five colonies found in that breeding season. Due to the characteristics of the waterbird assemblage in the area, the impact of mink could be catastrophic.

Bird Conservation International, 2013

SummaryWe present the results of searches for the Austral Rail Rallus antarcticus in Argentine an... more SummaryWe present the results of searches for the Austral Rail Rallus antarcticus in Argentine and Chilean Patagonia between January 1998 and February 2006 and from subsequent visits. We surveyed 58 localities and found the rail in 22, which collectively cover approximately 85 km2 of habitat. A maximum of 175 individuals were detected. This poorly known species was rediscovered in 1998; since then, it has been found in 18 additional localities, providing further data on distribution, habitat and seasonal movements. During the searches, we found that the species faces different threats, such as reduction of wetlands due to cattle grazing, burning and abnormal water management, but also the presence of American mink Neovison vison. However, due to the lack of prior information we conclude that the species should be maintained as Vulnerable.

Neotropical Birding 9 Above: Observing a group of four Hooded Grebes Podiceps gallardoi at a lago... more Neotropical Birding 9 Above: Observing a group of four Hooded Grebes Podiceps gallardoi at a lagoon on the Strobel plateau, Argentina, February 2011 (Kini Roesler) Updating our article in Neotropical Birding 6, three Argentine researchers describe how the latest news from the remote Patagonian breeding grounds of the globally threatened Hooded Grebe Podiceps gallardoi is almost depressingly worrying. They reveal that an introduced North American mustelid is just the latest in a series of threats that is potentially taking the species to the brink of extinction. >> FEATURE FINAL COUNTDOWN FOR THE HOODED GREBE

Anales del Instituto de la Patagonia

Ornithology Research

Santa Cruz province is the second largest province in Argentina, and also the least populated. Th... more Santa Cruz province is the second largest province in Argentina, and also the least populated. This province makes up the southern tip of continental Argentina. Althought it has low population density and is remote from big cities, in the past it received well-deserved attention from researchers. This was probably due to the presence of many interesting species, among them some threatened, with taxonomic singularities, and/or endemism. The goal of this work is to update knowledge of the distribution and natural history of 21 species from Santa Cruz, including five new to the province.

Revista del Museo Argentino de Ciencias Naturales

Revista del Museo Argentino de Ciencias Naturales, 2008

The birds (Passeriformes) of Santa Cruz province, Argentina, are analyzed based on three main sou... more The birds (Passeriformes) of Santa Cruz province, Argentina, are analyzed based on three main sources: specimens housed in the Museo Argentino de Ciencias Naturales of Buenos Aires (MACN), in the Félix de Azara Collection, Buenos Aires (CFA), in the Museo de La Plata, La Plata (MLP), in the Fundación Miguel Lillo, Tucumán (FML) and in the National Museum of Natural History, Washington (USNM). The data were obtained from bibliographical citations which include precise localities and from field observations. A list of 75 species belonging to 13 families is included. First records with precise localities are provided for five species. New localities are cited for 64 species.

Ornitologia Neotropical, 2008

... La Angelina (SC) Laguna Little Hill, Ea. Morro Chico (SC) Laguna Travesía, Ea. El Roda (SC) E... more ... La Angelina (SC) Laguna Little Hill, Ea. Morro Chico (SC) Laguna Travesía, Ea. El Roda (SC) Ea. Rincón de los Morros río Penitente (SC) Laguna c/RN 3 (SC) Laguna c/RN 3 (SC) Lagunas Meseta del Strobel (SC) Lagunas Meseta del Strobel (SC) Laguna La Gruta (SC ...

El Hornero, Aug 1, 2007

... SANTIAGO IMBERTI 1, CARLOS D. AMORÓS 2 Y SONIA A. CADIERNO 2 ... zona de distribución durante... more ... SANTIAGO IMBERTI 1, CARLOS D. AMORÓS 2 Y SONIA A. CADIERNO 2 ... zona de distribución durante el pe-ríodo estival el norte de la isla de Tierra del Fuego (en Argentina y Chile) y la parte conti-nental de la XII Región (de Magallanes) en Chile (Benegas 1997, Matus et al ...

Revista del Museo …, 2009

... Carlos Aquiles Darrieu 1 , Aníbal Raúl Camperi 1,2 & Santiago Imberti 3. ... Parque Nacio... more ... Carlos Aquiles Darrieu 1 , Aníbal Raúl Camperi 1,2 & Santiago Imberti 3. ... Parque Nacional Perito Moreno (Chebez et al., 1998); Estancia El Cóndor, Bahía Posesión (Cadierno & Amorós, 1999); Monte ... P. Miles, MACN; Los Antiguos, Lago Buenos Aires, 1 M, 11 Sep 1983, col. ...

El hornero, 2004

... Santiago Imberti 1,3 , Silvina M. Sturzenbaum 2 y Martina McNamara 1. 1 Universidad Nacional ... more ... Santiago Imberti 1,3 , Silvina M. Sturzenbaum 2 y Martina McNamara 1. 1 Universidad Nacional de la Patagonia Austral. ... pers.). Este ambiente recibe aguas de los ríos Gallegos y Chico, siendo el primero su principal aporte de agua dulce. ...

El Parque Nacional Monte León representa la primer área protegida nacional de carácter marino cos... more El Parque Nacional Monte León representa la primer área protegida nacional de carácter marino costero. Como tal, incorpora ambientes y especies que no se encontraban representados en el Sistema Nacional de Áreas Protegidas. Este trabajo, impulsado por un convenio entre la Administración de Parques Nacionales y la Asociación Ambiente Sur, aspira a cubrir parte del vacío en el conocimiento del elenco avifaunístico del mismo y sus áreas inmedia- tamente vecinas. Se basa fundamentalmente en la experiencia de campo de los autores que residen o han visitado la zona durante décadas, la realización de relevamientos y búsquedas sistemáticas formales entre 2007
y 2016, búsquedas bibliográficas, listados y reportes de observadores, ornitólogos y guar- daparques, visitas a museos y datos obtenidos en las diferentes plataformas digitales. El listado total asciende a 150 especies de aves, de las cuales 109 son no Passeriformes y 41 son Passeriformes y al menos 74 nidifican en el área protegida. Se describe para cada espe- cie la abundancia relativa, presencia estacional, aspectos reproductivos, ambientes que prefieren o utilizan regularmente, lugares de observación más comunes, su estado de conservación y otros aspectos que puedan ser de interés según la especie. Se presenta y discute también un listado de especies hipotéticas.

La realización de este inventario fue impulsada por un convenio entre Aves Argentinas / Asociació... more La realización de este inventario fue impulsada por un convenio
entre Aves Argentinas / Asociación Ornitológica del Plata y la
Administración de Parques Nacionales. Se basa fundamentalmente en
observaciones del autor, que desde 1990 ha vivido durante varias temporadas en el área. Se consultaron además, fuentes bibliográficas, listados y reportes de ornitólogos y guardaparques, y se visitaron colecciones de museos. Se describen los diferentes ambientes presentes en el área de estudio. El listado total asciende a 145 especies de aves (87 no passeriformes y 58 passeriformes) de las cuales 57 nidifican en el área. Se siguió el orden sistemático y la taxonomía de Mazar Barnett y Pearman
(2001). Se describe para cada especie la abundancia relativa, presencia
estacional, aspectos reproductivos, ambientes que frecuenta, lugares de
observación más comunes, su estado de conservación a nivel global
(BirdLife International, 2003) y en algunos casos se agrega breve información sobre novedades distribucionales y otros aspectos interesantes. Se presenta un listado de aves de presencia hipotética, dada su ocurrencia en sitios aledaños al área, y se discuten registros erróneos o sin fundamentación.

This inventory is the result of an agreement between Aves Argentinas / Asociación Ornitológica del Plata and the Administración de Parques Nacionales. It is based on the personal observations of the author who, since 1990, lived in the area for several seasons. Also, literature searches, lists and reports from ornithologists and park rangers and visits to museum collections were performed. The different habitats present in the PNLG are described. The total number of bird species recorded is 145 (87 non-passerines and 58 passerines), of which 57 breed in the area. The systematic order and taxonomy follows Mazar Barnett y Pearman (2001). For each species, abundance, seasonality, breeding conditions, favored habitat, places where they are commonly observed, global conservation status (Birdlife International 2003) and occasionally brief information on distribution or other noteworthy aspects, are described. A list of birds of hypothetical presence, due to is occurrence in neighbouring areas is presented. Erroneous or non supported records are discussed.