News - December 2016

December 06, 2016 01:40

A beautiful present from Matías Torreguitar

Last records of 2016

Anhinga

Anhinga anhinga

29-12-16 © J. Simón Tagtachian

Scarlet-headed Blackbird

Amblyramphus holosericeus

18-12-16 © Carlos González Ledo

Wood Stork

Mycteria americana

31-12-16 © J. Simón Tagtachian

Whistling Heron

Syrigma sibilatrix

30-12-16 © Nicolás Giorgio

Snail Kite

Rostrhamus sociabilis

15-12-16 © J. Simón Tagtachian

Chimango Caracara

Milvago chimango

29-12-16 © Nicolás Giorgio

Spectacled Tyrant

Hymenops perspicillatus

29-12-16 © J. Simón Tagtachian

Black-crowned Night-Heron

Nycticorax nycticorax

29-12-16 © Nicolás Giorgio

30-12-16 © Nicolás Giorgio

From young to adult

Snowy Egret

Egretta thula

26-12-16 © J. Simón Tagtachian

21-12-16 © J. Simón Tagtachian

Wattled Jacana

Jacana jacana

18-12-16 © Carlos González Ledo

Coscoroba Swan

Coscoroba coscoroba

27-12-16 © Nicolás Giorgio

Southern Lapwing

Vanellus chilensis

28-12-16 © Nicolás Giorgio

Common Gallinule

Gallinula galeata

29-12-16 © Nicolás Giorgio

Rock Pigeon
Columba livia

27 12 16 © Nicolás Giorgio

Other fauna
Coypu *Myocastor coypus*© RAP	Brazilian guinea pig *Cavia aperea*© Carlos Toledo
Colubroidean snake *Helicops infrataeniatus*© Gustavo Brahamian	Colubroidean snake *Helicops infrataeniatus*© Gustavo Brahamian
White-eared opossum *Didelphis albiventris*© Sergio Cusano	Black-and-white Tegu *Salvator merianae*© RAP
Painted turtle *Trachemys scripta dorbignyi*© Carlos Toledo	Mexican Silverspot *Dione moneta*© J. Simón Tagtachian
Common White-milk *Tatochila autodice*© J. Simón Tagtachian	Rothschildia jacobaeae *Rothschildia jacobaeae*© Sergio Cusano
Common Yellow *Eurema deva*© RAP	Southamerican Lady *Vanessa braziliensis*© J. Simón Tagtachian
Bella Mapwing *Hypanarthia bella*© J. Simón Tagtachian

Camuati Wasp

Polybia scutellaris

21-12-16 © J. Simón Tagtachian

Lady beetle

Cycloneda sanguinea

28-11-16 © Gustavo F. Brahamian

Roseate Spoonbill

Platalea ajaja

27-12-16 © J. Simón Tagtachian

With a limpkin

White-faced Whistling-Duck

Dendrocygna viduata

27-12-16 © J. Simón Tagtachian

The posture of these two white-faced whistling-ducks is a common image in this species. They are preening one another, that is they are allopreening. Preening is a common behaviour in all the species, but allopreening is only observed in those species with strong social ties like the white-faced whistling-duck. With no apparent reason one bird approaches another, directs its bill to the neck and begins preening. The other one reacts doing the same thing. Either adult-adult or adult-juvenile indulge in this activity. Beyond the benefits of preening- keep free from parasites and with tidy feathers- allopreening reinforces the bonds in the group

Green-barred Woodpecker

Colaptes melanochloros

27-12-16 © J. Simón Tagtachian

A male eating ants

27-12-16 © J. Simón Tagtachian

Judging by the muddy bill this female is looking for ants

Black-necked Swan

Cygnus melancoryphus

27-12-16 © J. Simón Tagtachian

Rufescent Tiger-Heron

Tigrisoma lineatum

27-12-16 © J. Simón Tagtachian

White-tufted Grebe

Rollandia rolland

27-12-16 © J. Simón Tagtachian

Behind white-faced whistling-duck. They are increasing in number

Pied-billed Grebe

Podilymbus podiceps

27-12-16 © J. Simón Tagtachian

Infanticide

Infanticide a behaviour which seems brutal to us

Creamy-bellied Thrush

Turdus amaurochalinus

21-12-16 © Cora Rimoldi

Maguari Stork

Ciconia maguari

21-12-16 © J. Simón Tagtachian

Rufescent Tiger-Heron

Tigrisoma lineatum

21-12-16 © J. Simón Tagtachian

Common Gallinule

Gallinula galeata

21-12-16 © J. Simón Tagtachian

Black-necked Swan

Cygnus melancoryphus

21-12-16 © J. Simón Tagtachian

Striated Heron

Butorides striata

21-12-16 © J. Simón Tagtachian

White-tipped Dove

Leptotila verreauxi

21-12-16 © J. Simón Tagtachian

Small-billed Elaenia

Elaenia parvirostris

21-12-16 © J. Simón Tagtachian

Southern Lapwing

Vanellus chilensis

21-12-16 © J. Simón Tagtachian

Dorsal view of wing

21-12-16 © J. Simón Tagtachian

Underwing coverts

21-12-16 © J. Simón Tagtachian

White-faced Ibis

Plegadis chihi

21-12-16 © J. Simón Tagtachian

Gilded Hummingbird

Hylocharis chrysura

21-12-16 © J. Simón Tagtachian

At cock spur tree Erythrina crista-galli

Flowers and fruits
Pope of the river *Stygmaphyllum littorale*© Claudia Mon	Red wing *Heteropterys angustifolia*© Cora Rimoldi
Red Indian shot *Canna indica*© J. Simón Tagtachian	Busy Lizzy *Impatiens walleriana*© J. Simón Tagtachian
Calico flower *Aristolochia elegans*© Sergio Cusano	Fringed Dutchman's pipe *Aristolochia fimbriata*© Sergio Cusano
Tree tobacco *Nicotiana glauca*© Eduardo Cusano	Giant arrowhead *Sagittaria montevidensis*© J. Simón Tgtachian
Yellow oleander *Thevetia peruviana*© Sergio Cusano	Modiolastrum malvifolium *Modiolastrum malvifolium*© Cora Rimoldi
Common moth vine *Araujia hortorum*© Carlos González Ledo	Oleander *Nerium oleander*© Sergio Cusano
Pacara earpod tree *Enterolobium contortisiliquum*© Carlos González Ledo	Tree of heaven *Ailanthus altissima*© Cora rimoldi
White brush *Aloysia gratissima*© Carlos González Ledo	Old man's beard *Clematis montevidensis*© Sergio Cusano
Wild teasel *Dipsacus fullonum*© J. Simón Tagtachian	Morning glory *Ipomoea cairica*© J. Simón Tagtachian
Horse tail *Equisetum giganteum*© Gustavo F. Brahamian	Lantana *Lantana camara*© J. Simón Tagtachian
Cat calw vine *Macfadyena unguis-cati*© Sergio Cusano	Lippia alba *Lippia alba*© Carlos González Ledo
Striped rosemallow *Hibiscus cisplatinus*© J. Simón Tagtachian	Elderberry *Sambucus australis*© J. Simón Tagtachian

Swainson's Hawk

Buteo swainsoni

17-12-16 © Silvia Ana González

17-12-16 © Eduardo Nicolás Cusano

17-12-16 © Silvia Ana González

Light morph. María José saw the Swainson's hawk take flight from the the Gull Pond. It flew towards the northeast as it gained altitude to jump on the thermal current.

17-12-16 © Eduardo Nicolás Cusano

17-12-16 © Eduardo Nicolás Cusano

Eduardo y María José saw the tropical parula get in and then two little necks move

17-12-16 © Eduardo Nicolás Cusano

17-12-16 © Eduardo Nicolás Cusano

Harris's Hawk

Parabuteo unicinctus

17-12-16 © Eduardo Nicolás Cusano

17-12-16 © Claudia Mon

17-12-16 © Silvia Ana González

We saw this hawk at about 8 am and once again when we were leaving. The half-opened wing call our eye. It screamed just like it did in the morning. When we saw the photos we realized the bird was ringed and that the wing was hurt. We went for help. Two girls from the Center appeared and we took them to see the hawk. Apparently this bird was rehabilitated in the center and later released. It must have had an accident of some kind..

Ultramarine Grosbeak

Cyanoloxia brissonii

06-12-16 © José Alberto Lell

Tropical Parula

Setophaga pitiayumi

13-12-16 © José Alberto Lell

Southern Caracara

Caracara plancus

13-12-16 © José Alberto Lell

Harris's Hawk

Parabuteo unicinctus

13-12-16 © José Alberto Lell

Streaked Flycatcher

Myiodynastes maculatus

15-12-16 © José Alberto Lell

Bird Survey organized by COARECS - 17th December 2017
Just about to begin summer antoher bird survey took place. A hot day and very sunny too. At noon 104 species had been counted. Number which was easily increased judging by the photos of birds that had not been seen. See the result

Birdwatchers

Maroon-bellied Parakeet

Pyrrhura frontalis

17-12-16 © Sergio Cusano

Swainson's Flycatcher

Myiarchus swainsoni

17-12-16 © Sergio Cusano

17-12-16 © J. Simón Tagtachian

Ferruginous Pygmy-Owl

Glaucidium brasilianum

17-12-16 © Sergio Cusano

White-browed Blackbird

Sturnella superciliaris

17-12-16 © Eduardo Nicolás Cusano

Picui Ground Dove

Columbina picui

17-12-16 © Eduardo Nicolás Cusano

Whistling Heron

Syrigma sibilatrix

17-12-16 © Sergio Cusano

17-12-16 © J. Simón Tagtachian

Neotropic Cormorant

Phalacrocorax brasilianus

17-12-16 © Claudia Mon

In the water tank

Sooty-fronted Spinetail

Synallaxis frontalis

17-12-16 © Eduardo Nicolás Cusano

Tropical Kingbird

Tyrannus melancholicus

17-12-16 © Eduardo Nicolás Cusano

Double-collared Seedeater

Sporophila caerulescens

17-12-16 © Eduardo Nicolás Cusano

17-12-16 © J. Simón Tagtachian

Great Grebe

Podiceps major

17-12-16 © Sergio Cusano

All related to reproduction

Red-eyed Vireo

Vireo olivaceus

17-12-16 © J. Simón Tagtachian

Parasitized by shiny cowbird

Wattled Jacana

Jacana jacana

17-12-16 © Sergio Cusano

17-12-16 © J. Simón Tagtachian

We had said there was only one egg left, but we were wrong. There are two beautiful chicks

Giant Wood-Rail

Aramides ypecaha

17-12-16 © J. Simón Tagtachian

Rufescent Tiger-Heron

Tigrisoma lineatum

17-12-16 © Sergio Cusano

17-12-16 © J. Simón Tagtachian

It was hot. The adult rose so that the eggs might have the proper temperature. The roadside hawk in the tree nearby is still waiting and screaming

Rosy-billed Pochard

Netta peposaca

17-12-16 © Sergio Cusano

Yellow-billed Teal

Anas flavirostris

17-12-16 © Eduardo Nicolás Cusano

Yellow-billed Tit-Tyrant

Anairetes flavirostris

17-12-16 © Claudia Mon

17-12-16 © J. Simón Tagtachian

Black-necked Swan

Cygnus melancoryphus

17-12-16 © Eduardo Nicolás Cusano

Black-necked Swan

Cygnus melancoryphus

17-12-16 © J. Simón Tagtachian

Sayaca Tanager

Thraupis sayaca

17-12-16 © Eduardo Nicolás Cusano

Yellow-billed Cardinal

Paroaria capitata

17-12-16 © Eduardo Nicolás Cusano

Checkered Woodpecker

Veniliornis mixtus

17-12-16 © Sergio Cusano

House Sparrow

Passer domesticus

17-12-16 © Sergio Cusano

Rufous-collared Sparrow

Zonotrichia capensis

17-12-16 © Sergio Cusano

Shiny Cowbird

Molothrus bonariensis

17-12-16 © Claudia Mon

Who will the host have been?

Creamy-bellied Thrush

Turdus amaurochalinus

17-12-16 © Sergio Cusano

Carrying food to a chick

Black-and-rufous Warbling-Finch

Poospiza nigrorufa

17-12-16 © Claudia Mon

Carrying food to a chick

Snail Kite

Rostrhamus sociabilis

15-12-16 © J. Simón Tagtachian

15-12-16 © J. Simón Tagtachian

New bird species

Pale-breasted Thrush

Turdus leucomelas

28-11-16 © Román Montero

Native to the northeast of the country

Common Gallinule

Gallinula galeata

10-12-16 © Amelia Besana

Adults and chicks foraging

Works at the Meeting Point

Obras Punto de Encuentro/Works at Meeting Point

10 12 16 © Sergio Cusano

10 12 16 © Sergio Cusano
New viewpoint, refurnishing the area with new tables and the breakwaters to mitigate the effect of the sudestada

Cattle Egret

Bubulcus ibis

10-12-16 © Sergio Cusano

Striated Heron

Butorides striata

11-12-16 © Eduardo Nicolás Cusano

White-browed Blackbird

Sturnella superciliaris

10-12-16 © Sergio Cusano

Black-crowned Night-Heron

Nycticorax nycticorax

09-12-16 © Rodolfo Pani

Screaming Cowbird

Molothrus rufoaxillaris

10-12-16 © Carlos González Ledo

Blue-and-yellow Tanager

Pipraeidea bonariensis

10-12-16 © Carlos González Ledo

Yellow-winged Blackbird

Agelasticus thilius

10-12-16 © Sergio Cusano

Fulvous Whistling-Duck

Dendrocygna bicolor

10-12-16 © Sergio Cusano

Roadside Hawk

Rupornis magnirostris

08-12-16 © Carlos González Ledo

The prey seems a duck

Plumbeous Rail

Pardirallus sanguinolentus

28-11-16 © Gustavo F. Brahamian

Southern Screamer

Chauna torquata

28-11-16 © Rodrigo Folch

Rosy-billed Pochard

Netta peposaca

28-11-16 © Gustavo F. Brahamian

Yellow-billed Teal

Anas flavirostris

28-11-16 © Rodrigo Folch

Egg, incubation, nests and juveniles

Red-eyed Vireo

Vireo olivaceus

10-12-16 © Silvia Loiacono

Feeding the chicks

10-12-16 © Silvia Loiacono

Feeding the chicks

Wattled Jacana

Jacana jacana

08-12-16 © Carlos González Ledo

Out of the four eggs only one can be seen. Very well camouflaged

Great Kiskadee

Pitangus sulphuratus

10-12-16 © Sergio Cusano

Rufescent Tiger-Heron

Tigrisoma lineatum

09-12-16 © Amelia Besana

Red-gartered Coot

Fulica armillata

11-12-16 © Eduardo Nicolás Cusano

Southern Lapwing

Vanellus chilensis

08-12-16 © Carlos González Ledo

Rufous-collared Sparrow

Zonotrichia capensis

10-12-16 © Sergio Cusano

Too many rufous-collared sparrow chicks

European Starling

Sturnus vulgaris

11-12-16 © Eduardo Nicolás Cusano

White-rumped Swallow

Tachycineta leucorrhoa

09-12-16 © Amelia Besana

Common Gallinule

Gallinula galeata

10-12-16 © Sergio Cusano

Checkered Woodpecker

Veniliornis mixtus

10-12-16 © Carlos González Ledo

10-12-16 © Sergio Cusano

Brown-chested Martin

Progne tapera

10-12-16 © Carlos González Ledo

Black-necked Swan

Cygnus melancoryphus

10-12-16 © Sergio Cusano

Coscoroba Swan

Coscoroba coscoroba

09-12-16 © Rodolfo Pani

09-12-16 © Amelia Besana

Eared Dove

Zenaida auriculata

10-12-16 © Sergio Cusano

Red-and-white Crake

Laterallus leucopyrrhus

09-12-16 © J. Simón Tagtachian

Maroon-bellied Parakeet

Pyrrhura frontalis

09-12-16 © J. Simón Tagtachian

White-tipped Dove

Leptotila verreauxi

09-12-16 © J. Simón Tagtachian

White-rumped Swallow

Tachycineta leucorrhoa

09-12-16 © J. Simón Tagtachian

White-lined Tanager

Tachyphonus rufus

09-12-16 © J. Simón Tagtachian

Rufous-collared Sparrow

Zonotrichia capensis

09-12-16 © J. Simón Tagtachian

White-tufted Grebe

Rollandia rolland

I'm having a bath

Chimango Caracara

Milvago chimango

Water or dust, two baths that help bird to get rid of dirt and parasites. Of course, then comes preening.

Striated Heron

Butorides striata

Black-backed Water-Tyrant

Fluvicola albiventer

Ultramarine Grosbeak

Cyanoloxia brissonii

White-eyed Parakeet

Psittacara leucophtalmus

Ringed Teal

Callonetta leucophrys

Glittering-bellied Emerald

Chlorostilbon lucidus

Male at blue anise sage Salvia guaranitica

European Starling

Sturnus vulgaris

Southern Lapwing

Vanellus chilensis

Yellow-billed Teal

Anas flavirostris

Rufous-bellied Thrush

Turdus rufiventris

The chick was sleeping

Wood Stork

Mycteria americana

Grassland Yellow-Finch

Sicalis luteola

Blue-and-white Swallow

Pygochelidon cyanoleuca

Bare-faced Ibis

Phimosus infuscatus

Southern Caracara

Caracara plancus

Carrying a cork?

Rosy-billed Pochard

Netta peposaca

With silver teal and white-faced whistling-duck as if leaving

Wattled Jacana

Jacana jacana

Black-crowned Night-Heron

Nycticorax nycticorax

Bran-colored Flycatcher

Myiophobus fasciatus

Coscoroba Swan

Coscoroba coscoroba

Wood Stork

Mycteria americana

Great Kiskadee

Pitangus sulphuratus

White-winged Becard

Pachyramphus polychopterus

Saffron Finch

Sicalis flaveola

Chimango Caracara

Milvago chimango

Chalk-browed Mockingbird

Mimus saturninus

Picazuro Pigeon

Patagioenas picazuro

Picazuro Pigeon

Patagioenas picazuro

Rufescent Tiger-Heron

Tigrisoma lineatum

Rufous-collared Sparrow

Zonotrichia capensis

New frog species

Dwarf tree frog

Dendropsophus sp.

In the pond at the Viamonte end

It frequents the axils of plants where rainwater is kept

Black-collared Hawk
Busarellus nigricollis heard by Germán Pugnali. The voice came from top of some palms near the Grebe Pond in line with mulberry trees which are at the edge of the path. No visibility due to thick foliage. December 4th at about 10 am.

Maroon-bellied Parakeet
Pyrrhura frontalis seen by Sergio Cusano. A flock of 6 or 7 individuals which flew by near the Viamonte Access

Rosy-billed Pochard

Netta peposaca

Rufous-bellied Thrush

Turdus rufiventris

Common Gallinule

Gallinula galeata

White-eyed Parakeet

Psittacara leucophtalmus

White-crested Tyrannulet

Serpophaga subcristata

Limpkin

Aramus guarauna

White-tufted Grebe

Rollandia rolland

Atajacaminos tijera
Hydropsalis torquata

The commonest voice of the male of this species

Giant Wood-Rail

Aramides ypecaha

An adulto with two chicks. One is seen only at the very beginning

Giant Wood-Rail

Aramides ypecaha

While the adult was with the chick a black-crowned night-heron appeared. I feared for the chick knowing the predatory habit of the heron. Everything is ok. Moreover when the adult walks away and the chick stays practically face to face with the heron. The chick went aroun the heron and managed to reach safety

Some photos of November

Lesser Yellowlegs

Tringa flavipes