News - December 2019



Striated Heron
Butorides striata
Striated Heron
29-12-19 © Héctor Horacio García

Blue-black Grassquit
Volatinia jacarina
Blue-black Grassquit
21-12-19 © Luciano Massa
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
21-12-19 © Luciano Massa
Roseate Spoonbill
21-12-19 © Luciano Massa
Swainson's Hawk
Buteo swainsoni
Swainson's Hawk
21-12-19 © Luciano Massa

Three bouts of Swainson's  Hawk seen during the morning. Some 500 in total

Swainson's Hawk
21-12-19 © Luciano Massa
White-tailed Hawk
Geranoaetus albicaudatus
White-tailed Hawk
21-12-19 © Luciano Massa
White-tailed Hawk
21-12-19 © Luciano Massa
White-tailed Hawk
21-12-19 © Luciano Massa
White-browed Blackbird
Sturnella superciliaris
White-browed Blackbird
21-12-19 © Luciano Massa
White-barred Piculet
Picumnus cirratus
White-barred Piculet
21-12-19 © Luciano Massa
White-barred Piculet
21-12-19 © Luciano Massa
Snail Kite
Rostrhamus sociabilis
Snail Kite
21-12-19 © Luciano Massa
Snail Kite
21-12-19 © Luciano Massa
Snail Kite
21-12-19 © Luciano Massa
Snail Kite
21-12-19 © Luciano Massa
Snail Kite
21-12-19 © Luciano Massa
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
21-12-19 © Luciano Massa
Streaked Flycatcher
Myiodynastes maculatus
Streaked Flycatcher
21-12-19 © Luciano Massa
Rufous Hornero
Furnarius rufus
Rufous Hornero
21-12-19 © Luciano Massa
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
21-12-19 © Luciano Massa
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
21-12-19 © Luciano Massa
Shiny Cowbird
Molothrus bonariensis
Shiny Cowbird
21-12-19 © Luciano Massa
Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
21-12-19 © Luciano Massa

At Camptosema rubicundum

Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
21-12-19 © Luciano Massa

At cock spur tree Erythrina crista-galli

Gilded Hummingbird
21-12-19 © Luciano Massa

At blue anise sage Salvia guaranitica

Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
21-12-19 © Luciano Massa
Double-collared Seedeater
21-12-19 © Luciano Massa
Double-collared Seedeater
21-12-19 © Luciano Massa
Common Gallinule
Gallinula galeata
Common Gallinule
21-12-19 © Luciano Massa
Common Gallinule
21-12-19 © Luciano Massa
Common Gallinule
21-12-19 © Luciano Massa
Common Gallinule
21-12-19 © Luciano Massa
Tropical Kingbird
Tyrannus melancholicus
Tropical Kingbird
21-12-19 © Luciano Massa
Tropical Kingbird
21-12-19 © Luciano Massa
Tropical Kingbird
21-12-19 © Luciano Massa
Tropical Kingbird
21-12-19 © Luciano Massa
Masked Gnatcatcher
Polioptila dumicola
Masked Gnatcatcher
21-12-19 © Luciano Massa
Masked Gnatcatcher
21-12-19 © Luciano Massa
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
21-12-19 © Luciano Massa
Rosy-billed Pochard
21-12-19 © Luciano Massa
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
21-12-19 © Luciano Massa
Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
21-12-19 © Luciano Massa
Snail Kite
Rostrhamus sociabilis
Snail Kite
22-12-19 © Carlos González Ledo
Striated Heron
Butorides striata
Striated Heron
22-12-19 © Carlos González Ledo
Small-billed Elaenia
Elaenia parvirostris
Small-billed Elaenia
22-12-19 © Carlos González Ledo
Snail Kite
Rostrhamus sociabilis
Snail Kite
22-12-19 © Carlos González Ledo
Streaked Flycatcher
Myiodynastes maculatus
Streaked Flycatcher
22-12-19 © Carlos González Ledo
Limpkin
Aramus guarauna
Limpkin
22-12-19 © Carlos González Ledo
Great Egret
Ardea alba
Great Egret
22-12-19 © Carlos González Ledo
Great Egret
22-12-19 © Carlos González Ledo
Cocoi Heron
Ardea cocoi
Cocoi Heron
22-12-19 © Carlos González Ledo
Pied-billed Grebe
Podilymbus podiceps
Pied-billed Grebe
22-12-19 © Carlos González Ledo
Southern Caracara
Caracara plancus
Southern Caracara
22-12-19 © Carlos González Ledo
Southern Caracara
22-12-19 © Carlos González Ledo
Southern Caracara
22-12-19 © Carlos González Ledo
Southern Caracara
22-12-19 © Carlos González Ledo
The mockingbird attacking the caracara till the caracara leaves the place
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
22-12-19 © Carlos González Ledo
The plastic bags are some of the litter we find in the Coypu Pond. Since it is the pond seen from the sidewalk is always visited by too many people. The visitors intentionally or not leave behind objects on the wall which a gust of wind sweeps into the pond. This generates too much rubbish though it is removed by the cleaning staff.
But the visual contamination is not the only problem. The plastic material, like this bag, may be swallowed by a bird and carry tragic consequences to it. It is difficult to help these birds and unluckily we lose track of them and do not know whether it managed to get rid of the bag or what happened to it. 




Swainson's Hawk
Buteo swainsoni
Swainson's Hawk
21-12-19 © Javier Guillermo González

During the morning three groups of Swainson's Hawk like this one flew by very high in the sky. They moved in a spiral way towards the north west. We estimated a total of some 500 individuals.

Swainson's Hawk
21-12-19 © Javier Guillermo González
Swainson's Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
Geranoaetus albicaudatus
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-tailed Hawk
21-12-19 © Javier Guillermo González
White-barred Piculet
Picumnus cirratus
White-barred Piculet
21-12-19 © Javier Guillermo González
Rufous-browed Peppershrike
Cyclarhis gujanensis
Rufous-browed Peppershrike
21-12-19 © Javier Guillermo González
Rufous-browed Peppershrike
21-12-19 © Javier Guillermo González
Rufous-browed Peppershrike
21-12-19 © Javier Guillermo González
Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
21-12-19 © Javier Guillermo González

At blue anise sage Salvia guaranitica

Gilded Hummingbird
21-12-19 © Javier Guillermo González

At tobacco tree Nicotiana glauca

Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
21-12-19 © Javier Guillermo González
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
21-12-19 © Javier Guillermo González
White-winged Becard
21-12-19 © Javier Guillermo González
Snail Kite
Rostrhamus sociabilis
Snail Kite
21-12-19 © Javier Guillermo González
Snail Kite
21-12-19 © Javier Guillermo González
Snail Kite
21-12-19 © Javier Guillermo González
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
21-12-19 © Javier Guillermo González
Double-collared Seedeater
21-12-19 © Javier Guillermo González
Yellow-billed Pintail
Anas georgica
Yellow-billed Pintail
21-12-19 © Javier Guillermo González
Yellow-billed Pintail
21-12-19 © Javier Guillermo González
Cocoi Heron
Ardea cocoi
Cocoi Heron
21-12-19 © Javier Guillermo González
Striated Heron
Butorides striata
Striated Heron
21-12-19 © Javier Guillermo González
Striated Heron
21-12-19 © Javier Guillermo González
Black-crowned Night-Heron
Nycticorax nycticorax
Black-crowned Night-Heron
21-12-19 © Javier Guillermo González
Black-crowned Night-Heron
21-12-19 © Javier Guillermo González
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
21-12-19 © Javier Guillermo González
Black-headed Duck
Heteronetta atricapilla
Black-headed Duck
21-12-19 © Javier Guillermo González
Lake Duck
Oxyura vittata
Lake Duck
21-12-19 © Javier Guillermo González
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
21-12-19 © Javier Guillermo González

More than 150 black-necked swans

White-winged Coot
Fulica leucoptera
White-winged Coot
21-12-19 © Javier Guillermo González
Southern Caracara
Caracara plancus
Southern Caracara
21-12-19 © Javier Guillermo González

Chased by Southern Lapwing

Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
21-12-19 © Javier Guillermo González
Gilded Hummingbird
21-12-19 © Javier Guillermo González
Tropical Kingbird
Tyrannus melancholicus
Tropical Kingbird
21-12-19 © Javier Guillermo González
Tropical Kingbird
21-12-19 © Javier Guillermo González
Tropical Kingbird
21-12-19 © Javier Guillermo González
Common Gallinule
Gallinula galeata
Common Gallinule
21-12-19 © Javier Guillermo González
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
21-12-19 © Javier Guillermo González

Stripe-backed Bittern
Ixobrychus involucris
Stripe-backed Bittern
26-12-19 © Liliana H. Rodríguez
Claudia Vázquez found it on 25th and on 26th Liliana photographed two individuals. Above, one of them, the three following photos correspond to the other individual. The videos refer to each of them
Stripe-backed Bittern
26-12-19 © Liliana H. Rodríguez
Stripe-backed Bittern
26-12-19 © Liliana H. Rodríguez
Stripe-backed Bittern
26-12-19 © Liliana H. Rodríguez
26-12-19 © Liliana H. Rodríguez
26-12-19 © Liliana H. Rodríguez
Southern Screamer
Chauna torquata
Southern Screamer
26-12-19 © Liliana H. Rodríguez
Red-gartered Coot
Fulica armillata
Red-gartered Coot
26-12-19 © Liliana H. Rodríguez
Striated Heron
Butorides striata
Striated Heron
26-12-19 © Liliana H. Rodríguez
Black-crowned Night-Heron
Nycticorax nycticorax
Black-crowned Night-Heron
26-12-19 © Liliana H. Rodríguez
Snail Kite
Rostrhamus sociabilis
Snail Kite
26-12-19 © Liliana H. Rodríguez
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
26-12-19 © Liliana H. Rodríguez
Cocoi Heron
Ardea cocoi
Cocoi Heron
26-12-19 © Liliana H. Rodríguez
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
26-12-19 © Liliana H. Rodríguez
Guira Cuckoo
Guira guira
Guira Cuckoo
26-12-19 © Liliana H. Rodríguez
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
26-12-19 © Liliana H. Rodríguez



Southern Martin
Progne elegans
Southern Martin
22-12-19 © Lucas de Ciria
Peregrine Falcon
Falco peregrinus
Peregrine Falcon
22-12-19 © Lucas de Ciria
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
22-12-19 © Lucas de Ciria
Snail Kite
Rostrhamus sociabilis
Snail Kite
22-12-19 © Lucas de Ciria
Snail Kite
22-12-19 © Lucas de Ciria
Roadside Hawk
Rupornis magnirostris
Roadside Hawk
22-12-19 © Lucas de Ciria

The hawk was carrying a piece of pigeon and was being expelled by a mockingbird. Most probably the hawk had been sitting quietly as he ate in the trees outside the reserve in front of the new viewpoint and flew inside.

Limpkin
Aramus guarauna
Limpkin
22-12-19 © Lucas de Ciria



Long-winged Harrier
Circus buffoni
Long-winged Harrier
07-12-19 © Javier Guillermo González
Long-winged Harrier
07-12-19 © Javier Guillermo González
Long-winged Harrier
07-12-19 © Javier Guillermo González
Long-winged Harrier
07-12-19 © Javier Guillermo González
Long-winged Harrier
07-12-19 © Javier Guillermo González
Long-winged Harrier
07-12-19 © Javier Guillermo González
When it showed up it was being chased by the Tropical kingbird
Striated Heron
Butorides striata
Striated Heron
07-12-19 © Javier Guillermo González
White-eyed Parakeet
Psittacara leucophtalmus
White-eyed Parakeet
07-12-19 © Javier Guillermo González
Green-winged Saltator
Saltator similis
Green-winged Saltator
07-12-19 © Javier Guillermo González
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
07-12-19 © Javier Guillermo González
Tropical Kingbird
Tyrannus melancholicus
Tropical Kingbird
07-12-19 © Javier Guillermo González
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
07-12-19 © Javier Guillermo González
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
07-12-19 © Javier Guillermo González



Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
21-12-19 © Sergio Cusano
White-browed Blackbird
Sturnella superciliaris
White-browed Blackbird
21-12-19 © Sergio Cusano
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
21-12-19 © Sergio Cusano
Black-necked Swan
21-12-19 © Sergio Cusano
Just a sample of the number of black-necked swans in the ponds
Plumbeous Rail
Pardirallus sanguinolentus
Plumbeous Rail
21-12-19 © Sergio Cusano
Striated Heron
Butorides striata
Striated Heron
21-12-19 © Sergio Cusano
Southern Lapwing
Vanellus chilensis
Southern Lapwing
21-12-19 © Sergio Cusano
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
21-12-19 © Sergio Cusano
Nenday Parakeet
Aratinga nenday
Nenday Parakeet
21-12-19 © Sergio Cusano
Black-backed Water-Tyrant
Fluvicola albiventer
Black-backed Water-Tyrant
21-12-19 © Sergio Cusano
Great Egret
Ardea alba
Great Egret
21-12-19 © Sergio Cusano
Cocoi Heron
Ardea cocoi
Cocoi Heron
21-12-19 © Sergio Cusano
Hooded Siskin
Spinus magellanicus
Hooded Siskin
21-12-19 © Sergio Cusano
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
21-12-19 © Sergio Cusano
Checkered Woodpecker
Veniliornis mixtus
Checkered Woodpecker
21-12-19 © Sergio Cusano
Checkered Woodpecker
21-12-19 © Sergio Cusano
The adult is looking for food for the chick
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
21-12-19 © Sergio Cusano
Common Gallinule
Gallinula galeata
Common Gallinule
21-12-19 © Sergio Cusano
Tropical Kingbird
Tyrannus melancholicus
Tropical Kingbird
21-12-19 © Sergio Cusano
Coscoroba Swan
Coscoroba coscoroba
21-12-19 © Cora Rimoldi

This coscoroba family with chicks already grown appeared in this pond. It must be one of the families which bred in the other ponds and moved. We can also see a solitary black-necked swan, A contrasting view with the too many in Duck and Gull Ponds

Red-gartered Coot
Fulica armillata
21-12-19 © Cora Rimoldi

A red-gartered coot is feeding a grown chick. A pied-billed grebe also appears in the scene.

Yellow-chinned Spinetail
Certhiaxis cinnamomeus
14-12-19 ©

A pair, though only one is seen, of yellow-chinne spinetails are building the nest.


Peregrine Falcon
Falco peregrinus
Peregrine Falcon
02-12-19 © J. Simón Tagtachian
Peregrine Falcon
02-12-19 © J. Simón Tagtachian
Peregrine Falcon
02-12-19 © J. Simón Tagtachian
Peregrine Falcon
02-12-19 © J. Simón Tagtachian
Southern Screamer
Chauna torquata
Southern Screamer
02-12-19 © J. Simón Tagtachian
Southern Screamer
02-12-19 © J. Simón Tagtachian
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
02-12-19 © J. Simón Tagtachian
Black-backed Water-Tyrant
Fluvicola albiventer
Black-backed Water-Tyrant
02-12-19 © J. Simón Tagtachian
Black-backed Water-Tyrant
02-12-19 © J. Simón Tagtachian
White-tipped Dove
Leptotila verreauxi
White-tipped Dove
02-12-19 © J. Simón Tagtachian
White-tipped Dove
02-12-19 © J. Simón Tagtachian
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
02-12-19 © J. Simón Tagtachian
Coscoroba Swan
02-12-19 © J. Simón Tagtachian
On the alert with raised wings as the black-necked swan swims by
Wattled Jacana
Jacana jacana
Wattled Jacana
02-12-19 © J. Simón Tagtachian
Wattled Jacana
02-12-19 © J. Simón Tagtachian
Al desplegar las alas, se ven las primarias y secundarias amarillas
Southern Lapwing
Vanellus chilensis
Southern Lapwing
02-12-19 © J. Simón Tagtachian
Creamy-bellied Thrush
Turdus amaurochalinus
Creamy-bellied Thrush
02-12-19 © J. Simón Tagtachian
Snowy Egret
Egretta thula
Snowy Egret
02-12-19 © J. Simón Tagtachian
Brown-hooded Gull
Chroicocephalus maculipennis
Brown-hooded Gull
02-12-19 © J. Simón Tagtachian
The group of the gulls is easy to tell from the other water birds. Though we consider them Brown-hooded gulls because many of them in fact are such, there may be grey-hooded gulls or snowy-crowned terns as well.
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
02-12-19 © J. Simón Tagtachian
Gray-breasted Martin
Progne chalybea
Gray-breasted Martin
02-12-19 © J. Simón Tagtachian
Brown-chested Martin
Progne tapera
Brown-chested Martin
02-12-19 © J. Simón Tagtachian





Common Gallinule
Gallinula galeata
Common Gallinule
14-12-19 © Silvia Sokolovsky
Bran-colored Flycatcher
Myiophobus fasciatus
Bran-colored Flycatcher
14-12-19 © Silvia Sokolovsky
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
14-12-19 © Silvia Sokolovsky
Striated Heron
Butorides striata
Striated Heron
14-12-19 © Silvia Sokolovsky
Black-backed Water-Tyrant
Fluvicola albiventer
Black-backed Water-Tyrant
14-12-19 © Silvia Sokolovsky
Black-crowned Night-Heron
Nycticorax nycticorax
Black-crowned Night-Heron
14-12-19 © Silvia Sokolovsky
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
14-12-19 © Silvia Sokolovsky




Cattle Egret
Bubulcus ibis
Cattle Egret
06-12-19 © Gustavo F. Brahamian
Cattle Egret
06-12-19 © Gustavo F. Brahamian
Red-gartered Coot
Fulica armillata
Red-gartered Coot
06-12-19 © Gustavo F. Brahamian
Chimango Caracara
Milvago chimango
Chimango Caracara
06-12-19 © Gustavo F. Brahamian
Chimango Caracara
06-12-19 © Gustavo F. Brahamian
Chimango Caracara
06-12-19 © Gustavo F. Brahamian
Chimango Caracara
06-12-19 © Gustavo F. Brahamian
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
06-12-19 © Gustavo F. Brahamian
Common Gallinule
Gallinula galeata
Common Gallinule
06-12-19 © Gustavo F. Brahamian
Rock Pigeon
Columba livia
Rock Pigeon
06-12-19 © Gustavo F. Brahamian



Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
01-12-19 © Carlos González Ledo
Cocoi Heron
Ardea cocoi
Cocoi Heron
01-12-19 © Carlos González Ledo
Common Gallinule
Gallinula galeata
Common Gallinule
01-12-19 © Carlos González Ledo
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
01-12-19 © Carlos González Ledo
01-12-19 © Carlos González Ledo
Black-necked Stilt
Himantopus mexicanus
Black-necked Stilt
01-12-19 © Sergio Cusano
Fulvous Whistling-Duck
Dendrocygna bicolor
Fulvous Whistling-Duck
01-12-19 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
01-12-19 © Sergio Cusano
Una de las dos familias de Coipos. Con 4 y 5 pichones
Limpkin
Aramus guarauna
Limpkin
01-12-19 © Sergio Cusano
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
01-12-19 © Sergio Cusano
Great Grebe
Podiceps major
Great Grebe
01-12-19 © Sergio Cusano
White-eyed Parakeet
Psittacara leucophtalmus
White-eyed Parakeet
01-12-19 © Sergio Cusano

Eating mulberries Morus nigra

White-eyed Parakeet
01-12-19 © Sally Dietrich
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
01-12-19 © Sergio Cusano
Arriba un juvenil de la camada que terminó hace poco. Abajo. el nuevo nido de Canal Viamonte
Rufescent Tiger-Heron
01-12-19 © Sergio Cusano
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
01-12-19 © Sergio Cusano
Red-eyed Vireo
Vireo olivaceus
Red-eyed Vireo
01-12-19 © Sergio Cusano
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
01-12-19 © Sergio Cusano
House Wren
Troglodytes aedon
House Wren
01-12-19 © Sergio Cusano
Creamy-bellied Thrush
Turdus amaurochalinus
Creamy-bellied Thrush
01-12-19 © Sergio Cusano