News - January 2016

Creole Duck
Cairina moschata
Pato criollo/Creole Duck23 1 16 © Sergio Cusano

Pato criollo/Creole Duck30 1 16 © Sergio Cusano

Pato criollo/Creole Duck31 1 16 © Nicolás Giorgio
This duck is the agrotype variety of the Muscovy duck
Cairina moschata.

Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak31 1 16 © Claudia Mon

Reinamora grande/Ultramarine Grosbeak31 1 16 © Claudia Mon

Reinamora grande/Ultramarine Grosbeak31 1 16 © Claudia Mon
Southern Screamer
Chauna torquata
Chajá/Southern Screamer31 1 16 © Horacio Patrone

Chajá/Southern Screamer31 1 16 © Horacio Patrone
Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate Spoonbill

Espátula rosada/Roseate Spoonbill30 1 16 © Amelia Besana
Red-crested Finch
Coryphospingus cucullatus
Brasita de fuego/Red-crested Finch30 1 16 © Gustavo Masuzzo
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher30 1 16 © J. Simón Tagtachian
Black-crowned Night-Heron
Nycticorax nycticorax
Garza bruja/Black-crowned Night-Heron30 1 16 © J. Simón Tagtachian
Common Gallinule attacked by a Side-necked Turtle
Pollona y tortuga/Gallinule and turtle Pollona y tortuga/Gallinule and turtle
Pollona y tortuga/Gallinule and turtle Pollona y tortuga/Gallinule and turtle
Pollona y tortuga/Gallinule and turtle Pollona y tortuga/Gallinule and turtle
Pollona y tortuga/Gallinule and turtle Pollona y tortuga/Gallinule and turtle
Today I witnessed a scene, that I had no recall of. A juvenil Common Gallinule was dragged downwards with a great fuss. An instant later it emerges dead and beheaded...
Then the attacker, a Side-necked Turtle pops up along with the prey, it submerges again and goes on devouring the gallinule.
This scene is repeated several times and finally the turtle seems satisfied and leaves abandoning the rest of the body.
30 1 16 © Nicolás Giorgio
Spot-flanked Gallinule
Gallinula melanops
Pollona pintada/Spot-flanked Gallinule30 1 16 © Sergio Cusano
A juvenile of a species which has barely been seen since last year's October
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard30 1 16 © Sergio Cusano
Dos familias. La de arriba con patitos pequeños y en la de abajo uno de las crías es bastante más chica que el resto
Pato picazo/Rosy-billed Pochard

Pato picazo/Rosy-billed Pochard30 1 16 © Sergio Cusano
Creamy-bellied Thrush
Turdus amaurochalinus
Zorzal chalchalero/Creamy-bellied Thrush30 1 16 © J. Simón Tagtachian
Chalk-browed Mockingbird
Turdus rufiventris
Calandria grande/Chalk-browed Mockingbird30 1 16 © Amelia Besana
Limpkin
Aramus guarauna
Caraú/Limpkin30 1 16 © Amelia Besana
Southern Caracara
Caracara plancus
Carancho/Southern Caracara30 1 16 © Sergio Cusano
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan30 1 16 © Marcelo Leanes
European Starling
Sturnus vulgaris
Estornino pinto/European Starling30 1 16 © Sergio Cusano
Shiny Cowbird
Molothrus bonariensis
Tordo renegrido/Shiny Cowbird30 1 16 © Marcelo Leanes
Grey-necked Wood-Rail
Aramides cajaneus
Chiricote/Grey-necked Wood-Rail30 1 16 © Marcelo Leanes
Fork-tailed Flycatcher
Tyrannus savana
Tijereta/Fork-tailed Flycatcher30 1 16 © J. Simón Tagtachian
With no tail Tijereta/Fork-tailed Flycatcher30 1 16 © Sergio Cusano
Eating a butterfly
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager30 1 16 © Marcelo Leanes
Eating fruit of
Solanum granulosum-leprosum
House Wren
Troglodytes aedon
Ratona común/House Wren30 1 16 © Marcelo Leanes
Yellow-billed Cardinal
Paroaria capitata
Cardenilla/Yellow-billed Cardinal30 1 16 © J. Simón Tagtachian
White-faced Ibis
Phimosus infuscatus
Cuervillo de cañada/White-faced Ibis30 1 16 © J. Simón Tagtachian
Masked Duck
Nomonyx dominicus
Pato fierro/Masked Duck30 1 16 © Sergio Cusano
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant30 1 16 © J. Simón Tagtachian
Gray-breasted Martin
Progne chalybea
Golondrina doméstica/Gray-breasted Martin30 1 16 © J. Simón Tagtachian



Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher26 1 16 © Claudia Mon

Churrinche/Vermilion Flycatcher26 1 16 © Claudia Mon
Strange to see this flycatcher at this time of the year. We generally see them fly south in september and on their way back in April

Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
23-01-16 © Claudia y Tito Di Mauro

Limpkin
Aramus guarauna
Caraú/Limpkin28 1 16 © Sergio Cusano Caraú/Limpkin28 1 16 © Sergio Cusano
Caraú/Limpkin28 1 16 © Sergio Cusano Caraú/Limpkin28 1 16 © Sergio Cusano
Great Grebe
Podiceps major
Macá grande/Great Grebe26 1 16 © Claudia Mon
Stripe-backed Bittern
Ixobrychus involucris
Mirasol común/Stripe-backed Bittern28 1 16 © Sergio Cusano
Y el 28 de Sergio. Parece a que todos los fotógrafos le dio su oportunidad
Mirasol común/Stripe-backed Bittern26 1 16 © Claudia Mon
Y el 26 fue el turno de Claudia para fotografiarlo Mirasol común/Stripe-backed Bittern24 1 16 © Eugenia Boggiani

Mirasol común/Stripe-backed Bittern24 1 16 © Eugenia Boggiani
Views of the river coast vistas SAC 23 1 16_223 1 16 © Sergio Cusano

Anuncio23 1 16 © Sergio Cusano

Vista/View23 1 16 © Sergio Cusano

Vista/View23 1 16 © Sergio Cusano

Vista/View23 1 16 © Sergio Cusano
Views of the coast with water hyacinth mats. At the Meeting Point there were no trespassing tapes to prevent visitors from getting to the shore
Curious birds of the mats
Silver Teal
Anas versicolor
Camalotal/Water haycinth mat23 1 16 © Silvia González
Chimango Caracara
Milvago chimango
Camalotal/Water haycinth mat23 1 16 © Silvia González
Picazuro Pigeon
Patagioenas picazuro
Camalotal/Water haycinth mat23 1 16 © Silvia González
Wattled Jacana
Jacana jacana
Camalotal/Water haycinth mat23 1 16 © Silvia González
Southern Screamer
Chauna torquata
Chajá/Southern Screamer23 1 16 © Sergio Cusano
Chajá/Southern Screamer23 1 16 © Sergio Cusano
Some screamers arrived with the mats: adults and chicks. At Coypu Pond there were five and on the river coast at least three. In the video an alert call is heard, which is not produced by the screamer in the film.

23 1 16 © Cora Rimoldi
American Kestrel
Falco sparverius
Halconcito colorado/American Kestrel23 1 16 © Eduardo Carreyra
Un individuo anillado
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager23 1 16 © Eduardo Carreyra
Frutero negro/White-lined Tanager23 1 16 © Silvia González
Polydamas Swallowtail
Battus polydamas
Borde de oro/Polydamas Swallowtail23 1 16 © Sergio Cusano

Borde de oro/Polydamas Swallowtail23 1 16 © Eduardo Carreyra
borde de oro/Polydamas Swallowtail23 1 16 © Silvia González

23 1 16 © Cora Rimoldi
Flowers and fruits
Common moth vine
Araujia sericifera
Tasi/Common moth vine23 1 16 © Sergio Cusano
Common moth vine
Araujia sericifera
Tasi/Common moth vine23 1 16 © Sergio Cusano
Wild pea
Vigna adenantha
Poroto de río/Wild pea16 1 16 © Silvia González
Wild pea
Vigna adenantha
Poroto de río/Wild pea9 1 16 © J. Simón Tagtachian
Calico flower
Aristolochia elegans
Aristoloquia/Calico flower9 1 16 © Gustavo Masuzzo
Cow's foot
Bauhinia forficata
Pata de buey/Cow's foot23 1 16 © Sergio Cusano
Water fern
Salvinia biloba
Acordeón del agua/Water fern23 1 16 © Cora Rimoldi
Alligator weed
Alternanthera philoxeroides
Lagunilla/Alligator weed23 1 16 © Cora Rimoldi
London plane
Platanus x acerifolia
Plátano/London plane9 1 16 © J. Simón Tagtachian
Graham's cassava
Manihot grahamii
Falso café/Graham's cassava© Sergio Cusano
Water hyacinth
Eichhornia crassipes
Camalote/Water hyacinth17 1 16 © Silvia González
Yellow bird of paradise
Cesalpinia gilliesii
Barba de chivo/Yellow bird of paradise23 1 16 © Sergio Cusano
Indian shot
Canna indica
Achira roja/Indian shot9 1 16 © Sergio Cusano
Pink pavonia
Pavonia hastata
Pavonia/Pink pavonia23 1 16 © Sergio Cusano
Peach
Prunus persica
Durazno/Peach© Sergio Cusano
Bristly Oxtongue
Picris echioides
Lengua de gato/Bristly Oxtongue© Sergio Cusano
Ocean blue morning glory
Ipomoea indica
Campanilla azul/Ocean blue morning glory23 1 16 © Sergio Cusano
Morning glory
Ipomoea cairica
Campanilla lila/Morning glory23 1 16 © Sergio Cusano
Dark-billed Cuckoo
Coccyzus melacoryphus
Cuclillo canela/Dark-billed Cuckoo23 1 16 © Sergio Cusano
cuclillo canela/Dark-billed Cuckoo23 1 16 © Sergio Cusano
Cuclillo canela/Dark-billed Cuckoo 23 1 16 © Silvia González
Cuclillo canela/Dark-billed Cuckoo23 1 16 © Silvia González
Swainson's Flycatcher
Myiarchus swainsoni
Burlisto pico canela/Swainson's Flycatcher23 1 16 © Sergio Cusano
White-eyed Parakeet
Psittacara leucophthalmus
Calancate ala roja/White-eyed Parakeet23 1 16 © Sergio Cusano
Masked Duck
Nomonyx dominicus
Pato fierro/Masked DuckMacho
Pato fierro/Masked Duck23 1 16 © Sergio Cusano
Female. In the morningthere was only one male and one female. At midday three other females joined the group.
Black-backed Water-Tyrant
Fluvicola albiventer
Viudita blanca/Black-backed Water-Tyrant23 1 16 © Sergio Cusano
Masked Yellowthroat
Geothlypis aequinoctialis
Arañero cara negraH/Masked YellowthroatF23 1 16 © Sergio Cusano
Hembra
Spot-winged Pigeon
Patagioenas maculosa
Paloma manchada/Spot-winged Pigeon23 1 16 © Sergio Cusano
Paloma manchada/Spot-winged Pigeon23 1 16 © Silvia González
Juveniles and families
Double-collared Seedeater
Sporophila caeruslescens
Corbatita común/Double-collared Seedeater23 1 16 © Silvia González

Corbatita común/Double-collared Seedeater23 1 16 © Silvia González
Brazilian Teal
Amazonetta brasiliensis
Pato cutirí/Brazilian Teal23 1 16 © Silvia González

Pato cutirí/Brazilian Teal23 1 16 © Silvia González

23 1 16 © Cora Rimoldi
Shiny Cowbird
Molothrus bonariensis
Tordo renegrido/Shiny Cowbird23 1 16 © Sergio Cusano
Fork-tailed Flycatcher
Tyrannus savana
Tijereta/Fork-tailed Flycatcher23 1 16 © Sergio Cusano
Tijereta/Fork-tailed Flycatcher23 1 16 © Silvia González
White-rumped Swallow
Tachycineta leucorrhoa
Golondrina ceja blanca/White-rumped Swallow23 1 16 © Silvia González
Pied-billed Grebe
Podilymbus podiceps
Macá pico grueso/(Pied-billed Grebe23 1 16 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard23 1 16 © Sergio Cusano
Red-gartered Coot
Fulica armillata
Gallareta ligas rojas/Red-gartered Coot23 1 16 © Sergio Cusano
Rufous-collared Sparrow
Zonotrichia capensis
<Chingolo/Rufous-collared Sparrow23 1 16 © Sergio Cusano
European Starling
Sturnus vulgaris
Estornino pinto/European Starling23 1 16 © Sergio Cusano
Eared Dove
Zenaida auriculata
Torcaza común/Eared Dove23 1 16 © Sergio Cusano
Checkered Woodpecker
Veniliornis mixtus
Carpintero bataraz chico/Checkered Woodpecker23 1 16 © Sergio Cusano
Water Snake
Erythrolamprus semiaureus
Culebra parda/19 1 16 © Silvia González

Culebra parda/19 1 16 © Silvia González

Culebra parda/19 1 16 © Silvia González

Culebra parda/19 1 16 © Silvia González
19 1 16 © Silvia González
Before Liophis miliaris. It is an inoffensive semiaquatic snake, typical of flooded environments of our Mesopotamia, Uruguay, south of Brasil.
Fork-tailed Flycatcher
Tyrannus savana
Tijereta/Fork-tailed Flycatcher19 1 16 © Silvia González
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak19 1 16 © Silvia González
Sooty-fronted Spinetail
Synallaxis frontalis
Pijuí frente gris/Sooty-fronted Spinetail19 1 16 © Silvia González
Streaked Flycatcher
Myiodynastes maculatus
Benteveo rayado/Streaked Flycatcher19 1 16 © Silvia González
Lake Duck
Oxyura vittata
Pato zambullidor chico/Lake Duck18 1 16 © J. Simón Tagtachian
Glittering-bellied Emerald
Chlorostilbon lucidus
Picaflor común/Glittering-bellied Emerald19 1 16 © Silvia González
Black-capped Warbling-Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling-Finch19 1 16 © Silvia González
Variable Oriole"
Icterus pyrrhopterus
Boyerito/Variable Oriole19 1 16 © Silvia González
Rufous-bellied Thrush
Turdus rufiventris
zorzal colorado JST 19 1 1619 1 16 © J. Simón Tagtachian
Great Grebe
Podiceps major
macá grande/Great Grebe18 1 16 © J. Simón Tagtachian
Birds visiting the mats
Greyish Baywing
Agelaioides badius
Camalotal/Water hyacinth mats19 1 16 © Silvia González
Great Kiskadee
Pitangus sulphuratus
Camalotal/Water hyacinth mats19 1 16 © Silvia González
Snowy Egret
Egretta thula
Camalotal/Water hyacinth mats19 1 16 © Silvia González
Eared Dove
Zenaida auriculata
Camalotal/Water hyacinth mats19 1 16 © Silvia González
Water hyacinth mats Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian
Camalotal/Water hyacinth mats19 1 16 © Silvia González

Camalotal/Water hyacinth mats19 1 16 © Silvia González

Camalotal/Water hyacinth mats19 1 16 © Silvia González
Camalotal/Water hyacinth mats19 1 16 © Silvia González
Camalotales sobre la costa del río

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian

Camalotal/water hyacinth mats19 1 16 © J. Simón Tagtachian
Water hyacinth mats at Grierson Bridge's docks
Southern Screamer
Chauna torquata
Chajá/Southern Screamer19 1 16 © J. Simón Tagtachian
Kelp Gull
Larus dominicanus
Gaviota cocinera/Kelp Gull19 1 16 © J. Simón Tagtachian



Southern Screamer
Chauna torquata
Chajá/Southern Screamer18 1 16 © J. Simón Tagtachian
On Monday 18th three adult screamers at Coypu Pond

Chajá/Southern Screamer18 1 16 © J. Simón Tagtachian
Impressive size of the Southern Screamer compared to the White-faced Whistling-Duck.

Chajá/Southern Screamer18 1 16 © J. Simón Tagtachian

Chajá/Southern Screamer18 1 16 © J. Simón Tagtachian

Chajá/Southern Screamer18 1 16 © J. Simón Tagtachian
Tropical Parula
Setophaga pitiayumi
Pitiayumí/Tropical Parula16 1 16 © J. Simón Tagtachian
Grey-breasted Martin
Progne chalybea
Golondrina doméstica/Grey-breasted Martin16 1 16 © J. Simón Tagtachian

Golondrina doméstica/Grey-breasted Martin16 1 16 © J. Simón Tagtachian



Limpkin
Aramus guarauna
Caraú/Limpkin1 1 16 © Claudia Mon

Caraú/Limpkin1 1 16 © Claudia Mon

Caraú/Limpkin1 1 16 © Claudia Mon

Caraú/Limpkin1 1 16 © Claudia Mon Seis pichones de caraú muy pequeños al final del totoral el 1 de enero.

Caraú/Limpkin16 1 16 © Claudia Mon
Only three at sight out of six. Here one of them
Meeting neighbours
Caraú-Benteveo común
Aramus guarauna - Pithangus sulphuratus
Caraú-benteveo/Limpkin-Great Kiskadee16 1 16 © Gustavo F. Brahamian

Caraú-benteveo/Limpkin-Great Kiskadee16 1 16 © Gustavo F. Brahamian

Caraú-benteveo/Limpkin-Great Kiskadee16 1 16 © Gustavo F. Brahamian

Caraú-benteveo/Limpkin-Great Kiskadee16 1 16 © Gustavo F. Brahamian
The three curious little limpkins investigating the neighbour that felt a bit upset.
Brown-chested Martin
Progne tapera
Golondrina parda/Brown-chested Martin2 1 16 © Silvia González

Golondrina parda/Brown-chested Martin2 1 16 © Silvia González
Las golondrinas parda son aves de verano que nidifican en la reserva y para ello reutilizan los nidos de hornero. Este nido se encuentra en un ceibo en el sector de mesas del lado de Viamonte. Silvia los descubrió cuando asomaban hambrientos el 2 de enero y hoy estaban ya fuera del nido esperando alimento.
Golondrina parda/Brown-chested Martin16 1 16 © Silvia González
Golondrina parda/Brown-chested Martin16 1 16 © Silvia González

16 1 16 © Claudia y Tito Di Mauro
Southern Caracaras, Cocoi Heron and Rosy-billed Pochard at Coipos
Caracara plancus - Ardea cocoi - Netta peposaca

16 1 16 © Claudia Mon



Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Sietevestidos/Black-and-rufous Warbling-Finch16 1 16 © Claudia Mon
Red-crested Cardinal
Paroaria coronata
Cardenal común/Red-crested Cardinal16 1 16 © Gustavo F. Brahamian
Southern Screamer
Chauna torquata
camalotales/floating hyacinth16 1 16 © J. Simón Tagtachian
On Saturday 16th we reached the coast and from the viewpoint we managed to see thre or four lines of floating vegetation in the distance. We were surprised at the size of these mats. We knew they would appear any time due to the floods.
These floating masses may act as a dispersal of fauna y and they are doubtless one of the reasons why the reserve is so rich and diverse. On them reptiles, amphibinas, insects and birds as well are transported. They are home for too many species but unluckily the press only refers to them as ways of dispersal of venemous snakes. At the reserve there are many species of snakes, most of them inoffensive, but there has always been he Urutu pit viper for more than 20 years now. Al the reptiles are more active during hot months, that is way it is advisable to be more cautious and follow the rule of not descending from the paths. In case of detecting any species of snake, inform the Personnel.
On Sunday Silvia came back to the place and the floating masses on the shore.
camalotales/floating hyacinth17 1 16 © Silvia González
camalotales/floating hyacinth17 1 16 © Silvia González
camalotales/floating hyacinth17 1 16 © Silvia González
Silvia documentó a un ave poco frecuente en la reserva. Tres pichones de chajá. Uno ya casi adulto y otros dos mucho más chicos que quedaron separados de su familia. chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González

chajá/Southern Screamer17 1 16 © Silvia González
Garza blanca/Great Egret17 1 16 © Silvia González
The Great Egret took advantage of the water hyacinth mat on the shore



New butterfly species: Argentine morpho
Morpho epistrophus argentinus
Bandera argentina/Argentine Morpho16 1 16 © J. Simón Tagtachian

Bandera argentina/Argentine Morpho16 1 16 © J. Simón Tagtachian

16 1 16 © Cora Rimoldi

16 1 16 © Claudia y Tito Di Mauro
At last we managed to record this butterfly. A very difficult butterfly to photograph for the way it moves. It flies erratically and quickly. It was seen along the Canal Vaimonte where the thick rope closes the access to the path. This window in the vegetation let us see them flying by. They crossed the window in one way or the other and sometimes got out of the vegetation onto the road. Simón saw three individuals. I recorded only two. This took us more than half an hour.
New species: White-eared opossum
Didelphis albiventris
Comadreja overa/White-eared opossum9 1 16 © Sergio Cusano

Comadreja overa/White-eared opossum9 1 16 © Sergio Cusano

Comadreja overa/White-eared opossum9 1 16 © Sergio Cusano
Unluckily we found this opossum dead at the edge of the Lizard Path. We knew there were white-eared opossum but had no register of it. This individual had no bites. It only had a small wound which must have been the cause of death. Run over?
With Carlos's digital method we estimated the opossum's body to be less than 30 cm long. This opossum is crepuscular. It is terrrestrial, but it can climb with agility using the tail.

Three new inscts to the site
Dragonfly/Skimmers
Micrathyria hypodidyma
Dragonfly/Skimmers
02-01-16 © Sergio Cusano
Darkling beetle
Strongylium decoratum
Darkling beetle
09-01-16 © Sergio Cusano
A coleopteran of the family Tenebrionidae. Tenebrionids are known as darkling beetles. They live mainly in steppes and desertic areas.
Lady beetle
Olla v-nigrum
Lady beetle
02-01-16 © Sergio Cusano
A coleopteran. Melanic form

Red-eared Turtle
Trachemys scripta elegnas
Tortuga de orejas rojas/Red-eared Turtle9 1 16 © Gustavo Masuzzo
Black-and-white Tegu Lizard
Tupinambis merianae
Lagarto overo/Black-and-white Tegu Lizard2 1 16 © Gustavo F. Brahamian
Coypu
Myocastor coypus
Coipo/Coypu© J. Simón Tagtachian
Coypu
Myocastor coypus
Coipo/Coypu© J. Simón Tagtachian



Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan Coscoroba/Coscoroba Swan
Coscoroba/Coscoroba Swan Coscoroba/Coscoroba Swan
14 1 16 © Gustavo F. Brahamian
Food (a snail) moving down the neck
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant14 1 16 © Gustavo F. Brahamian
Green-barred Woodpecker
Colaptes melanochloros
Carpintero real/Green-barred Woodpecker14 1 16 © Gustavo F. Brahamian
Gilded Sapphire
Hylocharis chrysura
Picaflor bronceado/Gilded Sapphire9 1 16 © Gustavo Masuzzo
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan14 1 16 © Gustavo F. Brahamian
Masked Duck
Nomonyx dominicus
Pato fierro/Masked Duck

Pato fierro/Masked Duck9 1 16 © J. Simón Tagtachian
Seen during the week by Lui, they only let be seen at dusk
White-winged Becard
Pachyramphus polychopterus
Anambé común/White-winged Becard9 1 16 © J. Simón Tagtachian
Screaming Cowbird
Molothrus rufoaxillaris
Tordo pico corto/Screaming Cowbird9 1 16 © Sergio Cusano
Campo Flicker
Colaptes campestris
Carpintero campestre/Campo Flicker9 1 16 © J. Simón Tagtachian
Carpintero campestre/Campo Flicker9 1 16 © Sergio Cusano
Black-backed Water-Tyrant
Fluvicola albiventer
viudita blanca JST 9 1 169 1 16 © J. Simón Tagtachian
Viudita blanca/Black-backed Water-Tyrant9 1 16 © Sergio Cusano
Spot-winged Pigeon
Leptotila verreauxi
Yerutí común/Spot-winged Pigeon 1 16 © Sergio Cusano
Striated Heron
Butorides striata
Garcita azulada/Striated Heron9 1 16 © Sergio Cusano
Ringed Teal
Callonetta leucophrys
<Pato de collar/Ringed Teal9 1 16 © Sergio Cusano
Harris's Hawk - European Starling
Parabuteo unicinctus - Sturnus vulgaris
Gavilán mixto/Harris's Hawk2 1 16 © Gustavo Brahamian
December, 2nd Gustavo caught this hawk red-handed
Estorninos-gavilán mixto/European Starling-Harris's Hawk

Estorninos-gavilán mixto/European Starling-Harris's Hawk

Gavilán mixto/Harris's Hawk9 1 16 © J. Simón Tagtachain
On the 9th Simón saw the hawk pursuing a flock of starlings first and later the hawk with a prey. May this be a starling?
Waterbirds Acuáticas/Waterbirds9 1 16 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca, White-faced Whistling-Duck
Dendrocygna viduata, Silver Teal
Anas versicolor y Neotropic Cormorant
Phalacrocorax brasilianus
Juveniles y families
Limpkin
Aramus guarauna
Caraú/Limpkin9 1 16 © J. Simón Tagtachian
Caraú/Limpkin9 1 16 © Sergio Cusano

Caraú/Limpkin9 1 16 © Sergio Cusano
El comedor todo lleno de caracoles
Rufous-collared Sparrow
Zonotrichia capensis
Chingolo/Rufous-collared Sparrow9 1 16 © Sergio Cusano
Double-collared Seedeater
Sporophila caerulescens
Corbatita común/Double-collared Seedeater2 1 16 © Sergio Cusano
Red-crested Cardinal
Paroaria coronata
Cardenal/Red-crested Cardinal9 1 16 © Sergio Cusano
White-rumped Swallow
Tachycineta leucorrhoa
Golondrina ceja blanca/White-rumped Swallow9 1 16 © Sergio Cusano
Rufescent Tiger-Heron
Tifrisoma lineatum
Hocó colorado/Rufescent Tiger-Heron9 1 16 © J. Simón Tagtachian
Southern Lapwing
Vanellus chilensis
Tero común/Southern Lapwing9 1 16 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard9 1 16 © J. Simón Tagtahcian
2006 - 2016. We turned 10! A big thanks to all those who help build this site no matter how tiny the contribution is. This site is full of good vibes of all the people who share, contribute and have fun with birds. We are a lot and the number keeps increasing.
My acknowledgment to Horacio Reinaudo, the founder of this web site and my gratitude to the "teachers" for their teachings which encourage us to go ahead, to those who share their material or provide information and to those who follow the site.
Let us tackle the following ten years, this team is ready for the challenge.
A small sample of the observers that participate in the walks. No chronological order has been kept and there are lots of collaborators and observers missing.

Horacio ReinaudoHoracio Reinaudo, el creador del sitio

buena gente 1412

buena gente 3446 See more photos
Un recuerdo para los que vieron nacer el sitio

foto9 foto

foto3 See more photos



Great Grebe
Podiceps major
Macá grande/Great Grebe5 1 16 © Sergio Cusano
Snowy Egret
Egretta thula
Garcita blanca/Snowy Egret5 1 16 © Sergio Cusano
Great Egret
Ardea alba
Garza blanca/Great Egret5 1 16 © Sergio Cusano
Monk Parakeet
Myiopsitta monachus
Cotorra/Monk Parakeet5 1 16 © Sergio Cusano
Red-eyed Vireo
Vireo olivaceus
Chiví común/Red-eyed Vireo2 1 16 © Gustavo F. Brahamian
Common Gallinule
Gallinula galeata
Pollona negra/Common Gallinule5 1 16 © Sergio Cusano
European Starling
Sturnus vulgaris
Estornino pinto/European Starling5 1 16 © Sergio Cusano
Red-gartered Coot
Fulica armillata
Gallareta ligas rojas/Red-gartered Coot5 1 16 © Sergio Cusano

Gallareta ligas rojas/Red-gartered Coot2 1 16 © Amelia Besana

Gallareta ligas rojas/Red-gartered Coot2 1 16 © Amelia Besana
Grassland Yellow-Finch
Sicalis luteola
Misto/Grassland Yellow-Finch2 1 16 © Sergio Cusano

Misto/Grassland Yellow-Finch2 1 16 © Sergio Cusano
Misto/Grassland Yellow-Finch2 1 16 © J. Simón Tagtachian

Misto/Grassland Yellow-Finch2 1 16 © J. Simón Tagtachian
White-browed Meadowlark
Sturnella superciliaris
Pecho colorado/White-browed Meadowlark2 1 16 © Sergio Cusano

2 1 16 © Claudia y Tito Di Mauro
Warbling Doradito
Pseudocolopteryx flaviventris
Doradito común/Warbling Doradito2 1 16 © Sergio Cusano
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Caburé chico/Ferruginous Pygmy-Owl2 1 16 © J. Simón Tagtachian
White-eyed Parakeet
Psittacara leucophthalmus
Calancate ala roja/White-eyed Parakeet2 1 16 © J. Simón Tagtachian
Juveniles
Rufescent Tiger-Heron
Tigrisoma lineatum
Hocó colorado/Rufescent Tiger-Heron2 1 16 © Sergio Cusano
Nuevo nido de hocó con dos pichones detectado por Simón Hocó colorado/Rufescent Tiger-Heron2 1 16 © J. Simón Tagtachian

Hocó colorado/Rufescent Tiger-Heron2 1 16 © J. Simón Tagtachian
Red-crested Cardinal
Paroaria coronata
Cadenal/Red-crested Cardinal2 1 16 © Sergio Cusano
Red-fronted Coot
Fulica rufifrons
Gallareta escudete rojo/Red-fronted Coot2 1 16 © Sergio Cusano

2 1 16 © Claudia y Tito Di Mauro
Common Gallinule
Gallinula galeata
Pollona negra/Common Gallinule2 1 16 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard2 1 16 © J. Simón Tagtachian
House Wren
Troglodytes aedon
Ratona común/House Wren2 1 16 © J. Simón Tagtachian
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan2 1 16 © Sergio Cusano
Striated Heron
Butorides striata
Garcita azulada/Striated Heron Garcita azulada/Striated Heron
garci azul JST 2 1 16_2 Garcita azulada/Striated Heron
European Starling
Sturnus vulgaris
Estornino pinto/European Starling

Estornino pinto/European Starling2 1 16 © J. Simón Tagtachian
They were eating on the mounds of vegetation material dumped by the machines and from time to time they flew off the ground.
Lake Duck
Oxyura vittata
Pato zambullidor chico/Lake Duck2 1 16 © J. Simón Tagtachian
White-tipped Dove
Leptotila verreauxi
Yerutí común/White-tipped Dove2 1 16 © J. Simón Tagtachian
Bran-coloured Flycatcher
Myiophobus fasciatus
Mosqueta estriada/Bran-coloured Flycatcher2 1 16 © J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero/Blue-and-yellow Tanager2 1 16 © Sergio Cusano
Bare-faced Ibis
Phimosus infuscatus
Cuervillo cara pelada/Bare-faced Ibis2 1 16 © Sergio Cusano
Cuervillo cara pelada/Bare-faced Ibis2 1 16 © J. Simón Tagtachian

Cuervillo cara pelada/Bare-faced Ibis2 1 16 © J. Simón Tagtachian
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant2 1 16 © Sergio Cusano
Neotropic Cormorant
Phalacrocorax brasilianus
Biguá/Neotropic Cormorant2 1 16 © J. Simón Tagtachian
Urutu pit viper
Bothrops alternatus
Yarará/Urutu pit viper

Yarará/Urutu pit viper Yarará/Urutu pit viper2 1 16 © Sergio Cusano
Some minutes before we had been told that a photographer took photos of this viper eating a Brazilian Guinea Pig. We found it near the road and immediately informed the Personnel. It was motionless. Perhaps digesting the guinea pig. This viper is not aggressive except if it fels threatened. Watch where you walk and do not leave the main trails.

2 1 16 © Claudia y Tito Di Mauro
Views Vista Coipos/View of Coypu PondView of Coypu Pond

Vista Coipos/View of Coypu PondView of Coypu Pond

Vista Gaviotas/View of Gull PondView of Gull Pond

Vista Patos/View of Duck PondView of Duck Pond 2 1 16 © Sergio Cusano
Coypu
Myocastor coypus
Coipo/Coypu

Coipo/Coypu1 1 16 © J. Simón Tagtachian
Coipo/Coypu2 1 16 © J. Simón Tagtachian
Eyes, ears and nose are placed on the upper part of the head. In this way this small part of the head is above water. Front legs end in four long fingers and very small thumb, whereas hind legs have the five fingers well developed and are webbed, adapted for aquatic life.
White-tufted Grebe
Rollandia rolland
Macá común/White-tufted Grebe1 1 16 © J. Simón Tagtachian
Pied-billed Grebe
Podilymbus podiceps
Macá pico grueso/Pied-billed Grebe1 1 16 © J. Simón Tagtachian