News - July 2016

July 02, 2016 23:13

Brown-hooded Gull
Chroicocephalus maculipennis

29 7 16 © Gustavo F. Brahamian
Release of a this gull after rehabilitation. As usual birds are ringed before realease.

Sooty-fronted Spinetail

Synallaxis frontalis

29-07-16 © Gustavo F. Brahamian

Great Kiskadee

Pitangus sulphuratus

30-07-16 © Cora Rimoldi

Nest building

Colubroidean snake

Helicops infrataeniatus

02-07-16 © Diego Carús

02-07-16 © Sergio Cusano

Mexican silverspot

Dione moneta

16-07-16 © Sergio Cusano

Southern Monarch

Danaus erippus

08-07-16 © Román Montero

Pampas cavy

Cavia aperea

08-07-16 © Román Montero

Camuati Wasp

Polybia scutellaris

30-07-16 © Sergio Cusano

Plants
Blue anise sage *Salvia guaranitica*© Sergio Cusano	Wild mallow *Abutilon pauciflorum*© Sergio Cusano
Mandarin tree *Citrus reticulata*© J. Simpon Tagtachian	Lemon tree *Citrus limon*© J. Simón Tagtachian
Banana plant *Musa paradisiaca*© Sergio Cusano	Pacara earpod tree *Enterolobium contortisiliquum*© Sergio Cusano
Indian shot *Canna indica*© Sergio Cusano	Chinese privet *Ligustrum sinensis*© Sergio Cusano

Lubber Grasshopper

Coryacris angustipennis

16-07-16 © Elsa y Guillermo Marcaida

Hoverfly

Palpada sp

16-07-16 © Elsa y Guillermo Marcaida

Camuati Wasp

Polybia scutellaris

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

30-07-16 © Jorge García Vicente

30-07-16 © J. Simón Tagtachian

Black-headed Duck

Heteronetta atricapilla

30-07-16 © Sergio Cusano

And silver teal at the back

Southern Beardless-Tyrannulet

Camptostoma obsoletum

30-07-16 © Pablo Serur

Snail Kite

Rostrhamus sociabilis

30-07-16 © J. Simón Tagtachian

Shiny Cowbird

Molothrus bonariensis

30-07-16 © J. Simón Tagtachian

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

Diademed Tanager

Stephanophorus diadematus

30-07-16 © Sergio Cusano

Great Grebe

Podiceps major

30-07-16 © Sergio Cusano

White-tufted Grebe

Rollandia rolland

30-07-16 © Sergio Cusano

The newly born grebe discovered on July 9th

Lake Duck

Oxyura vittata

30-07-16 © Sergio Cusano

Two or three males but no females

Rufescent Tiger-Heron

Tigrisoma lineatum

30-07-16 © Sergio Cusano

Masked Duck

Nomonyx dominicus

30-07-16 © Sergio Cusano

We counted 40

White-winged Coot

Fulica leucoptera

30-07-16 © Sergio Cusano

Yellow-browed Tyrant

Satrapa icterophrys

30-07-16 © J. Simón Tagtachian

Great Egret

Ardea alba

30-07-16 © Sergio Cusano

Southern Caracara

Caracara plancus

30-07-16 © Sergio Cusano

Southern Caracara

Caracara plancus

30-07-16 © Sergio Cusano

Wattled Jacana

Jacana jacana

30-07-16 © Sergio Cusano

Gilded Hummingbird

Hylocharis chrysura

30-07-16 © J. Simón Tagtachian

Yellow-billed Cardinal

Paroaria capitata

30-07-16 © Sergio Cusano

Screaming cowbird and shiny 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.

30-07-16 © J. Simón Tagtachian

Coscoroba Swan

Coscoroba coscoroba

23-07-16 © Gustavo F. Brahamian

23-07-16 © María de las Mercedes Martínez

Nest building

Great Kiskadee

Pitangus sulphuratus

23-07-16 © Gustavo F. Brahamian

Brazilian Teal

Amazonetta brasiliensis

23-07-16 © Gustavo F. Brahamian

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

Great Egret

Ardea alba

23-07-16 © Gustavo F. Brahamian

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

Rufescent Tiger-Heron

Tigrisoma lineatum

23-07-16 © Gustavo F. Brahamian

Lubber Grasshopper

Coryacris angustipennis

16-07-16 © Elsa y Guillermo Marcaida

Hoverfly

Palpada sp

16-07-16 © Elsa y Guillermo Marcaida

Camuati Wasp

Polybia scutellaris

30-07-16 © Sergio Cusano

And the checklist also joins the round anniversaries 2006 - 2016

La nueva versión 2016 sumando toda la información de estos 10 años

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

23-07-16 © Román Montero

And three silver teals

Scarlet-headed Blackbird

Amblyramphus holosericeus

23-07-16 © Claudia Mon

Pied-billed Grebe

Podilymbus podiceps

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

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

23-07-16 © Claudia Mon

White-tufted Grebe

Rollandia rolland

23-07-16 © Cora Rimoldi

Building relationships

Great Pampa-Finch

Embernagra platensis

23-07-16 © Román Montero

White-faced Whistling-Duck

Dendrocygna viduata

23-07-16 © Claudia Mon

Suiriri Flycatcher

Suiriri suiriri

20-07-16 © Daniel J. Rodríguez

Black-headed Duck

Heteronetta atricapilla

14-07-16 © Luis G. Pagano

Buff-winged Cinclodes

Cinclodes fuscus

14-07-16 © Luis G. Pagano

Buff-winged Cinclodes

Cinclodes fuscus

17-07-16 © Gustavo F. Brahamian

Rufous-sided Crake

Laterallus melanophaius

17-07-16 © Gustavo F. Brahamian

Greyish Baywing

Agelaioides badius

17-07-16 © Gustavo F. Brahamian

Plumbeous Rail

Pardirallus sanguinolentus

17-07-16 © Gustavo F. Brahamian

Rosy-billed Pochard

Netta peposaca

17-07-16 © Gustavo F. Brahamian

Yellow-billed Cardinal

Paroaria capitata

17-07-16 © Gustavo F. Brahamian

Mourning Sierra-Finch

Phrygilus fruticeti

17-10-13 © Julian Cappuccio

Julián, a birdwatcher from Berisso, photographed this female mourning sierra-finch during his walk around Costanera. This sierra-finch comes here in winter.

A very cold Saturday

Mourning Sierra-Finch

Phrygilus fruticeti

17-10-13 © Julian Cappuccio

Julián, a birdwatcher from Berisso, photographed this female mourning sierra-finch during his walk around Costanera. This sierra-finch comes here in winter.

Views of the fishermen's pier

Vista muelle de pescadores/Fishermen's pier

16 7 16 © Sergio Cusano

Connected cloud

16 7 16 © Sergio Cusano

Ghost spider

Arachosia praesignis

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

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

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

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

09-07-16 © J. Simón Tagtachian

Blue-and-yellow Tanager

Pipraeidea bonariensis

09-07-16 © J. Simón Tagtachian

Golden-billed Saltator

Saltator aurantiirostris

09-07-16 © J. Simón Tagtachian

Eating the dried flower of loquat

Great Grebe

Podiceps major

08-07-16 © Gustavo F. Brahamian

First time we record a great grebe with a chick

08-07-16 © Gustavo F. Brahamian

Rusty-collared Seedeater

Sporophila collaris

08-07-16 © Claudia Mon

Scrub Blackbird

Dives warszewiczi

08-07-16 © Román Montero

Blue-billed Black-Tyrant

Knipolegus cyanirostris

08-07-16 © Silvia Ana González

08-07-16 © Dolores Fernández

White-banded Mockingbird

Mimus triurus

08-07-16 © Marcelo Leanes

Yellow-chevroned Parakeet

Brotogeris chiriri

08-07-16 © Sergio Cusano

White-tipped Plantcutter

Phytotoma rutila

08-07-16 © Silvia Ana González

Sooty Tyrannulet

Serpophaga nigricans

08-07-16 © Sergio Cusano

08-07-16 © Silvia Ana González

Spot-winged Pigeon

Patagioenas maculosa

08-07-16 © Silvia Ana González

2 7 16 © Cora Rimoldi

Ultramarine Grosbeak

Cyanoloxia brissonii

08-07-16 © Sergio Cusano

Black-and-rufous Warbling-Finch

Poospiza nigrorufa

08-07-16 © Román Montero

Masked Duck

Nomonyx dominicus

08-07-16 © Sergio Cusano

Southern Screamer

Chauna torquata

Solitary Black Cacique

Cacicus solitarius

Coypu

Myocastor coypus

Colubroidean snake

Helicops infrataeniatus

Urutu pit viper

Bothrops alternatus

Ultramarine Grosbeak

Cyanoloxia brissonii

Yellow-browed Tyrant

Satrapa icterophrys

Rufescent Tiger-Heron

Tigrisoma lineatum

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.

Cocoi heron
Ardea cocoi

Garza mora con fondo histórico

Sooty Tyrannulet

Serpophaga nigricans

Black-necked Stilt

Himantopus mexicanus

Ringed Kingfisher

Megaceryle torquata

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