News - July 2016

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Brown-hooded Gull
Chroicocephalus maculipennis
Gaviota capucho café/Brown-hooded Gull

Gaviota capucho café/Brown-hooded Gull

Gaviota capucho café/Brown-hooded Gull29 7 16 © Gustavo F. Brahamian
Release of a this gull after rehabilitation. As usual birds are ringed before realease.

Sooty-fronted Spinetail
Synallaxis frontalis
Sooty-fronted Spinetail
29-07-16 © Gustavo F. Brahamian
Great Kiskadee
Pitangus sulphuratus
30-07-16 © Cora Rimoldi

Nest building




Assorted fauna and flora
Water snake
Erythrolamprus semiaureus
Culebra parda/Water snake© Gustavo F. Brahamian
Colubroidean Snake
Helicops infrataeniatus
Helicops infrateniatus© Sergio Cusano
Brazilian guinea pig
Cavia aperea
Cuis/Brazilian guinea pig© Román Montero
Monarch
Danaus erippus
Monarca/Monarch© Román Montero
Blue anise sage
Salvia guaranitica
Salvia azul/Blue anise sage© Sergio Cusano
Hairy Indian mallow
Abutilon pauciflorum
Malvavisco/Hairy Indian mallow© Sergio Cusano
Mandarin tree
Citrus reticulata
Mandarino/Mandarin tree© J. Simpon Tagtachian
Lemon tree
Citrus limon
Limonero/Lemon tree© J. Simón Tagtachian
Banana plant
Musa paradisiaca
Banano/Banana plant© Sergio Cusano
Pacara earpod tree
Enterolobium contortisiliquum
Pacara earpod tree© Sergio Cusano
Indian shot
Canna indica
Achira roja/Indian shot© Sergio Cusano
Chinese privet
Ligustrum sinensis
Ligustrina/Chinese privet© Sergio Cusano



Lubber Grasshopper
Coryacris angustipennis
Lubber Grasshopper
16-07-16 © Elsa y Guillermo Marcaida
Hoverfly
Palpada sp
Hoverfly
16-07-16 © Elsa y Guillermo Marcaida
Camuati Wasp
Polybia scutellaris
Camuati Wasp
30-07-16 © Sergio Cusano



Last Saturday of July: Meeting for the 100th anniversary of Aves Argentinas
A cold morning but too much joy
Blue-billed Black-Tyrant
Knipolegus cyanirostris
Blue-billed Black-Tyrant
30-07-16 © Jorge García Vicente
Blue-billed Black-Tyrant
30-07-16 © Jorge García Vicente
Blue-billed Black-Tyrant
30-07-16 © J. Simón Tagtachian
Black-headed Duck
Heteronetta atricapilla
Black-headed Duck
30-07-16 © Sergio Cusano

And silver teal at the back

Southern Beardless-Tyrannulet
Camptostoma obsoletum
Southern Beardless-Tyrannulet
30-07-16 © Pablo Serur
Snail Kite
Rostrhamus sociabilis
Snail Kite
30-07-16 © J. Simón Tagtachian
Shiny Cowbird
Molothrus bonariensis
Shiny Cowbird
30-07-16 © J. Simón Tagtachian

The white lines on the head show the sheaths of developing feathers

Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
30-07-16 © Sergio Cusano
Great Grebe
Podiceps major
Great Grebe
30-07-16 © Sergio Cusano
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
30-07-16 © Sergio Cusano

The newly born grebe discovered on July 9th

Lake Duck
Oxyura vittata
Lake Duck
30-07-16 © Sergio Cusano

Two or three males but no females

Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
30-07-16 © Sergio Cusano
Masked Duck
Nomonyx dominicus
Masked Duck
30-07-16 © Sergio Cusano

We counted 40

White-winged Coot
Fulica leucoptera
White-winged Coot
30-07-16 © Sergio Cusano
Yellow-browed Tyrant
Satrapa icterophrys
Yellow-browed Tyrant
30-07-16 © J. Simón Tagtachian
Great Egret
Ardea alba
Great Egret
30-07-16 © Sergio Cusano
Southern Caracara
Caracara plancus
Southern Caracara
30-07-16 © Sergio Cusano
Southern Caracara
Caracara plancus
Southern Caracara
30-07-16 © Sergio Cusano
Wattled Jacana
Jacana jacana
Wattled Jacana
30-07-16 © Sergio Cusano
Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
30-07-16 © J. Simón Tagtachian
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
30-07-16 © Sergio Cusano

Screaming cowbird and shiny cowbird
Screaming Cowbird
30-07-16 © J. Simón Tagtachian

Two photos to see the differences between these two cowbirds: Screaming Cowbird and Shiny Cowbird.They belong to the Family Icteridae and both are parasitic 
Differences: The violaceous blue of the Shiny Cowbird and the glossy black of the Screaming Cowbird. Bill length. Shorter in the Screaming Cowbird (in Spanish it takes its name after this difference) and longer in the Shiny Cowbird. The chestnut iris in the Screaming Cowbird and the dark iris in the Shiny Cowbird.

Screaming Cowbird
30-07-16 © J. Simón Tagtachian

Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
23-07-16 © Gustavo F. Brahamian
23-07-16 © María de las Mercedes Martínez

Nest building

Great Kiskadee
Pitangus sulphuratus
Great Kiskadee
23-07-16 © Gustavo F. Brahamian
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
23-07-16 © Gustavo F. Brahamian

Brazilian teal, bottom right and left; rosy-billed pochard the ones on top

Great Egret
Ardea alba
Great Egret
23-07-16 © Gustavo F. Brahamian

Snowy egret (left), great egret (right), side-necked turtles in the middle

Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
23-07-16 © Gustavo F. Brahamian



Lubber Grasshopper
Coryacris angustipennis
Lubber Grasshopper
16-07-16 © Elsa y Guillermo Marcaida
Hoverfly
Palpada sp
Hoverfly
16-07-16 © Elsa y Guillermo Marcaida
Camuati Wasp
Polybia scutellaris
Camuati Wasp
30-07-16 © Sergio Cusano

And the checklist also joins the round anniversaries 2006 - 2016
checklist 2016
La nueva versión 2016 sumando toda la información de estos 10 años

guiada botánica


Sábado 23
Saturday 23rd. A cold and cloudy morning though by midday the wether got warmer. Only a few came and few people around
Black-headed Duck
Heteronetta atricapilla
Black-headed Duck
23-07-16 © Román Montero

And three silver teals

Scarlet-headed Blackbird
Amblyramphus holosericeus
Scarlet-headed Blackbird
23-07-16 © Claudia Mon
Pied-billed Grebe
Podilymbus podiceps
Pied-billed Grebe
23-07-16 © Claudia Mon
Pied-billed Grebe
23-07-16 © Claudia Mon
Masked Duck
Nomonyx dominicus
23-07-16 © Cora Rimoldi

At 8:30 am the ducks were already active. I counted 25 though not all of them appear in the video. We hope this floating vegetation will not be removed since it is the only area which provides some protection. At the back two Rufous-sided Crakes appear at the end of the video.

White-winged Coot
Fulica leucoptera
White-winged Coot
23-07-16 © Claudia Mon

Since a long time this coot has been absent and if we are lucky we find only one individual. Same thing is happening with the Spot-flanked Gallinule. These two species were very common and abundant

Sayaca Tanager
Thraupis sayaca
24-07-16 © Claudia Vilma Mon
White-crested Tyrannulet
Serpophaga subcristata
23-07-16 © Cora Rimoldi

A synchronized duet between a masked gnatcatcher, which appears on the video, and a tyrannulet which was across the road. The tyrannulet begins and the gnatcatcher closes

Ringed Teal
Callonetta leucophrys
Ringed Teal
23-07-16 © Claudia Mon
White-tufted Grebe
Rollandia rolland
23-07-16 © Cora Rimoldi

Building relationships

Great Pampa-Finch
Embernagra platensis
Great Pampa-Finch
23-07-16 © Román Montero
White-faced Whistling-Duck
Dendrocygna viduata
White-faced Whistling-Duck
23-07-16 © Claudia Mon

Suiriri Flycatcher
Suiriri suiriri
Suiriri Flycatcher
20-07-16 © Daniel J. Rodríguez
Suiriri Flycatcher
20-07-16 © Daniel J. Rodríguez
Black-headed Duck
Heteronetta atricapilla
Black-headed Duck
14-07-16 © Luis G. Pagano
Buff-winged Cinclodes
Cinclodes fuscus
Buff-winged Cinclodes
14-07-16 © Luis G. Pagano

Buff-winged Cinclodes
Cinclodes fuscus
Buff-winged Cinclodes
17-07-16 © Gustavo F. Brahamian
Rufous-sided Crake
Laterallus melanophaius
Rufous-sided Crake
17-07-16 © Gustavo F. Brahamian
Greyish Baywing
Agelaioides badius
Greyish Baywing
17-07-16 © Gustavo F. Brahamian
Plumbeous Rail
Pardirallus sanguinolentus
Plumbeous Rail
17-07-16 © Gustavo F. Brahamian
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
17-07-16 © Gustavo F. Brahamian
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
17-07-16 © Gustavo F. Brahamian



Coypu
Myocastor coypus

17 7 16 © Gustavo F. Brahamian

Coypu
Myocastor coypus

16 7 16 © Elsa y Guillermo
The small coypu was on the Lizard Path. It was so tame that it could be touched. Two adults probably its parents were twenty meters away. Being so docile is very risky.
Views of the fishermen's pier Vista muelle de pescadores/Fishermen's pier

Vista muelle de pescadores/Fishermen's pier16 7 16 © Sergio Cusano
Connected cloud Nube/Cloud16 7 16 © Sergio Cusano

Ghost spider
Arachosia praesignis
Ghost spider
08-07-16 © Román Montero
Ghost spider
08-07-16 © Román Montero
It belongs to the family Anyphaenidae. It is known as ghost spider for its pale or translucid colouration.

Bumblebee
Bombus bellicosus
Bumblebee
22-05-16 © Román Montero
A threatened native species. The decline in number is thought to be due to two factors. On one hand, alteration of the habitat. This species is associated to the native grassland and the land use change both to urbanization and agriculture. On the other, a characteristic in the construction of the nest would influence negatively in reproduction. This bumblebee covers the nest with a layer of wax which is believed to protect bumblebees from low temperatures and with climate change this would become harmful for the species.

Birds celebrating the Day of the Independence...
Snowy-crowned Tern
Sterna trudeaui
Snowy-crowned Tern
09-07-16 © Pablo Serur
White-tufted Grebe
Rollandia rolland
09-07-16 © Cora Rimoldi

It was winter and the breeding plumage called our eye. So we kept watching this grebe and voilá! a little very little grebe emerged out of the plumage

Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
09-07-16 © J. Simón Tagtachian
Rufescent Tiger-Heron
Tigrisoma lineatum
09-07-16 © J. Simón Tagtachian

Last week we had seen two rufescent tiger-herons on this platform. Today one was lying on the nest. It then cut some branches and sat again

Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
09-07-16 © J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
09-07-16 © J. Simón Tagtachian
Golden-billed Saltator
Saltator aurantiirostris
Golden-billed Saltator
09-07-16 © J. Simón Tagtachian

Eating the dried flower of loquat



Great Grebe
Podiceps major
Great Grebe
08-07-16 © Gustavo F. Brahamian

First time we record a great grebe with a chick

Great Grebe
08-07-16 © Gustavo F. Brahamian
Rusty-collared Seedeater
Sporophila collaris
Rusty-collared Seedeater
08-07-16 © Claudia Mon
Scrub Blackbird
Dives warszewiczi
Scrub Blackbird
08-07-16 © Román Montero
08-07-16 © Román Montero
Blue-billed Black-Tyrant
Knipolegus cyanirostris
Blue-billed Black-Tyrant
08-07-16 © Silvia Ana González
Blue-billed Black-Tyrant
08-07-16 © Dolores Fernández
White-banded Mockingbird
Mimus triurus
White-banded Mockingbird
08-07-16 © Marcelo Leanes
Yellow-chevroned Parakeet
Brotogeris chiriri
Yellow-chevroned Parakeet
08-07-16 © Sergio Cusano
White-tipped Plantcutter
Phytotoma rutila
White-tipped Plantcutter
08-07-16 © Silvia Ana González
White-tipped Plantcutter
08-07-16 © Silvia Ana González
White-tipped Plantcutter
08-07-16 © Silvia Ana González
Sooty Tyrannulet
Serpophaga nigricans
Sooty Tyrannulet
08-07-16 © Sergio Cusano
Sooty Tyrannulet
08-07-16 © Silvia Ana González
Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
08-07-16 © Silvia Ana González
2 7 16 © Cora Rimoldi

Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
08-07-16 © Sergio Cusano
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Black-and-rufous Warbling-Finch
08-07-16 © Román Montero
Masked Duck
Nomonyx dominicus
Masked Duck
08-07-16 © Sergio Cusano
Masked Duck
08-07-16 © Silvia Ana González
Southern Screamer
Chauna torquata
Southern Screamer
08-07-16 © Román Montero
Solitary Black Cacique
Cacicus solitarius
Solitary Black Cacique
08-07-16 © Román Montero
White-lined Tanager
08-07-16 © Román Montero
White-lined Tanager
08-07-16 © Román Montero
Saffron Finch
08-07-16 © Silvia Ana González
Narrow-billed Woodcreeper
08-07-16 © Marcelo Leanes
Fulvous Whistling-Duck
08-07-16 © Silvia Ana González
Spectacled Tyrant
08-07-16 © Silvia Ana González
Great Egret
08-07-16 © Gustavo F. Brahamian
Snowy Egret
08-07-16 © Gustavo F. Brahamian

Coypu
Myocastor coypus
Coipo/Coypu8 7 16 © Gustavo F. Brahamian
Colubroidean snake
Helicops infrataeniatus
Culebra acuática común/Colubroidean snake8 7 16 © Marcelo Leanes
Urutu pit viper
Bothrops alternatus
Yarará grande/Urutu pit viper8 7 16 © Sergio Cusano

Yarará grande/Urutu pit viper8 7 16 © Dolores Fernández

Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
07-07-16 © José Alberto Lell
Yellow-browed Tyrant
Satrapa icterophrys
Yellow-browed Tyrant
07-07-16 © José Alberto Lell
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
07-07-16 © José Alberto Lell

Waterbird Survey organized by the COARECS - Saturday 2nd of July A grey but full of optimism. It resulted very fruitful. We found a few nice things. The RECS was closed and we began the walk along the outer sidewalkd of Coypu Pond counting the birds of the pond. As we reached the Brasil end the reserve opened and went to the Canal Carlota Roberts (former Canal Sudeste) and from there all along the coast to get out at Viamonte.
Mist and rain at times accompanied us all the walk till midday.
Grupo/group© Sergio Cusano
Vista río/View river© Sergio Cusano

Vista río/View river© Sergio Cusano

Vista río/View river© Sergio Cusano
Views of the river taken between the Canal Carlota Roberts and the Meeting Point
Cocoi heron
Ardea cocoi
Garza mora/Cocoi Heron
Garza mora con fondo histórico
Garza mora/Cocoi Heron2 7 16 © J. Simón Tagtachian

Sooty Tyrannulet
Serpophaga nigricans
Sooty Tyrannulet
02-07-16 © Diego Carús
Black-necked Stilt
Himantopus mexicanus
Black-necked Stilt
02-07-16 © Sergio Cusano
Black-necked Stilt
02-07-16 © J. Simón Tagtachian
Ringed Kingfisher
Megaceryle torquata
Ringed Kingfisher
02-07-16 © Sergio Cusano

Since three weeks ago we have been watching the kingfisher without fail, flying and vocalizing, which announces its presence. Today perched in a tree at the Brasil end. We saw two individuals on the wing together

Southern Beardless-Tyrannulet
Camptostoma obsoletum
Southern Beardless-Tyrannulet
02-07-16 © Sergio Cusano
Southern Beardless-Tyrannulet
02-07-16 © Sergio Cusano
Southern Beardless-Tyrannulet
02-07-16 © Sergio Cusano
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
02-07-16 © Sergio Cusano
Lake Duck
Oxyura vittata
Lake Duck
02-07-16 © Sergio Cusano
Masked Duck
Nomonyx dominicus
Masked Duck
02-07-16 © Sergio Cusano
Mourning Sierra-Finch
Phrygilus fruticeti
Mourning Sierra-Finch
02-07-16 © Sergio Cusano
White-banded Mockingbird
Mimus triurus
White-banded Mockingbird
02-07-16 © Sergio Cusano

Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
01-12-13 © 20160702 Sergio
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
02-07-16 © J. Simón Tagtachian
Rufescent Tiger-Heron
02-07-16 © Diego Carús
Rufescent Tiger-Heron
02-07-16 © Diego Carús

It seems a small platform but if you pay attention you will find two tiger-herons.

Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
02-07-16 © J. Simón Tagtachian
White-tipped Dove
Leptotila verreauxi
White-tipped Dove
02-07-16 © Sergio Cusano
Campo Flicker
Colaptes campestris
Campo Flicker
02-07-16 © Sergio Cusano
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
02-07-16 © Sergio Cusano
Roadside Hawk
Rupornis magnirostris
Roadside Hawk
02-07-16 © J. Simón Tagtachian
Roadside Hawk
02-07-16 © J. Simón Tagtachian
Brown-hooded Gull
Chroicocephalus maculipennis
Brown-hooded Gull
02-07-16 © Sergio Cusano

During the walk big groups flew by. Here on the coast

Brown-hooded Gull
02-07-16 © Diego Carús

During the walk big groups flew by. Here on the coast

Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
02-07-16 © J. Simón Tagtachian
Hooded Siskin
Spinus magellanicus
Hooded Siskin
02-07-16 © J. Simón Tagtachian

View of the reserve Vista desde un edificio/Vie from a building29 6 16 © Eduardo Ibarra

Vista desde un edificio/Vie from a building29 6 16 © Eduardo Ibarra
Eduardo saw from the building he works a great number of great egrets and counted 120.

Buff-winged Cinclodes
Cinclodes fuscus
Buff-winged Cinclodes
22-04-16 © Daniel J. Rodríguez
Buff-winged Cinclodes
22-04-16 © Daniel J. Rodríguez
Buff-winged Cinclodes
22-04-16 © Daniel J. Rodríguez
Unas de las pocos fotos, tomadas en abril, de la remolinera común. Esta temporada se está haciendo rogar bastante.