News - November 2013



Spittlebug
Cephissus siccifolius
Spittlebug
22-11-13 © J. Simón Tagtachian
November arrives and so does the rain-causing spittlebug. The females lay eggs preferably in legume trees and in Costanera the tipu tree Tipuana tipu is no doubt their favourite tree. Their waste is expelled in a foam-like way which covers and protects them. When these balls are too heavy they fall in the form of raindrops. But the tipu tree is not the only affected. Another legume tree which is parasitized by this insect is the Cockspur Tree
Spittlebug
03-11-13 © Cora Rimoldi

Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
28-11-13 © José Alberto Lell

New butterfly species: White Angled-sulphur
Anteos clorinde
Mancha de azufre/White Angled-sulphur© Gustavo F Brahamian

Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
30-11-13 © J. Simón Tagtachian
White-tipped Dove
Leptotila verreauxi
White-tipped Dove
30-11-13 © J. Simón Tagtachian
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
30-11-13 © Gustavo F. Brahamian
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
03-11-13 © Gustavo F. Brahamian
Masked Yellowthroat
Geothlypis aequinoctialis
Masked Yellowthroat
30-11-13 © J. Simón Tagtachian
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
30-11-13 © J. Simón Tagtachian
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
30-11-13 © Gustavo F. Brahamian
Bran-colored Flycatcher
Myiophobus fasciatus
Bran-colored Flycatcher
02-11-13 © J. Simón Tagtachian

Ello Sphinx Moth Caterpillar
Erynnis ello
Oruga gusano de la yuca/Ello Sphinx Moth CaterpillarOruga © Pablo Mosto

Waterbirds Acuáticas/Waterbirds © Gustavo F. Brahamian

Removing cattails Obras/Works © Gustavo F. Brahamian

Wattled Jacana
Jacana jacana
Wattled Jacana
26-11-13 © Nicolás Giorgio

Views of the reserve ave, canal viamonte© Gustavo F. Brahamian ave, coipos© Gustavo F. Brahamian costanera río GAE 11 13© Germán A. Etcheverry costanera río1 GAE 11 13© Germán A. Etcheverry

Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
Narrow-billed Woodcreeper
30-11-13 © Dolores Fernández
Narrow-billed Woodcreeper
30-11-13 © Dolores Fernández
Narrow-billed Woodcreeper
30-11-13 © Dolores Fernández

An artificial hole which has served as a nest on another occasion. The access is so narrow that it has to move back to get in.


Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
24-11-13 © Carlos González Ledo

Homing Pigeon
Columba livia
Paloma mensajera/Homing Pigeon Paloma mensajera/Homing Pigeon Paloma mensajera/Homing PigeonPhotos © J. Simón Tagtachian This is a ringed homing pigeon which was registered in the Federación Colombófila Argentina in 2013. Homing pigeons are characterized by their sense of orientation, fatigue resistence and flight speed. These skilful flying postmen have been the current mail system till the first communication technologies appeared on the scene. They carried messages attached to their legs. Nowadays pigeon keeping, which is the art and science of breeding domestic pigeons, is basically a sports activity. Paloma mensajera/Homing pigeon© J. Simón Tagtachian Will our male pigeon conquer her?

Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
Narrow-billed Woodcreeper
19-11-13 © J. Simón Tagtachian
House Wren
Troglodytes aedon
House Wren
28-11-13 © Nicolás Giorgio
Campo Flicker
Colaptes campestris
Campo Flicker
23-11-13 © J. Simón Tagtachian
Snowy Egret
Egretta thula
Snowy Egret
23-11-13 © J. Simón Tagtachian
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
23-11-13 © J. Simón Tagtachian
Variable Oriole
Icterus pyrrhopterus
Variable Oriole
23-11-13 © J. Simón Tagtachian
White-faced Ibis
Plegadis chihi
White-faced Ibis
23-11-13 © J. Simón Tagtachian
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
30-11-13 © J. Simón Tagtachian

Trying to eat a fish


Ferret Hurón/Polecat© J. Simón Tagtachian

Parasitism: Black-rufous Warbling-Finch - Shiny Cowbird
Black-and-rufous Warbling-Finch
23-11-13 © J. Simón Tagtachian



Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
02-11-13 © J. Simón Tagtachian

Female lapping flower of Jacaranda mimosifolia.

Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
23-11-13 © J. Simón Tagtachian

First family of rosy-billed pochard. A characteristic of this species is that only the female carries out nesting and raising ducklings.

Masked Duck
Nomonyx dominicus
Masked Duck
23-11-13 © Amelia Besana
Masked Duck
23-11-13 © Amelia Besana
Masked Duck
23-11-13 © Amelia Besana
Scarlet-headed Blackbird
Amblyramphus holosericeus
Scarlet-headed Blackbird
23-11-13 © J. Simón Tagtachian

Green-barred Woodpecker
Colaptes melanochloros
Green-barred Woodpecker
23-11-13 © J. Simón Tagtachian

Adult feeding a chick

Green-barred Woodpecker
23-11-13 © J. Simón Tagtachian

Adult feeding a chick

Green-barred Woodpecker
23-11-13 © J. Simón Tagtachian

Adult feeding a chick

Green-barred Woodpecker
23-11-13 © J. Simón Tagtachian

Chick already fed


New species: Marbled Swamp-eel
Synbranchus marmoratus
Anguila criolla/Marbled Swamp ee-How easily we can be fooled. It has neither fins nor scales, looks like an eel, but it is a fish. It is commonly known as marbled swamp eel
Synbranchus marmoratus.
Anguila criolla/Marbled Swamp eelIt is a freshwater fish and is found in rivers, canals, lakes, etc. Here they were seen at the opening of the pipe. There were three individuals. Two were between 80 and 100 cm long and the other one, 60 cam long. Anguila criolla/Marbled Swamp eelIt was not taken out of water. The peculiarity of this fish is that it can breathe oxygen both in the water and in the air due to specialized adaptations in the gills. Ii is covered with a mucous membrane which facilitates moving on the ground and prevents the swamp eel from desiccation. Photos © J. Simón Tagtachian

Nueva especie para el sitio
Black-collared Hawk
Busarellus nigricollis
Black-collared Hawk
28-10-11 © Nicolás Pérez
An old record but very valuable since this hawk frequents the north and northeast. There have been some isolated records in the area of Buenos Aires in the last years. On this occasion the bird flew above the reserve for 15 minutes near the Viamonte Access

Two turtles
Tortuga de laguna/Side necked Turtle© J. Simón Tagtachian To see a turtle hiding its head into the carapace when it feels threatened is not remarkable, but the way they do it is what makes the difference between the two suborders of turtles. Turtles and tortoises belong into the Order Testudines, which subdivides into Pleurodira (side-necked) and Cryptodira (hidden neck). The turtle of the upper photo, a side-necked turtle
Phrynops hilarii, hides its long neck by folding it sideways. Pleurodira are found only in the Southern Hemisphere. The turtle below, a painted turtle
Trachemys scripta dorbignyi belongs into the Criptodira. It pulls it straight back into the carapace. In both cases vertebrae have adapted to move in such a way. This little turtle was found by workers of the Plan Obra who gave to the personnel of the Reserve fearing it could be stepped on by visitors.
Tortuga pintada/Painted Turtle© J. Simón Tagtachian

New bird species
Swainson's Hawk
Buteo swainsoni
Swainson's Hawk
16-11-13 © José Luis Blázquez

Native to the United States and Canada this raptor migrates to Argentina during the austral summer. It is opportunistic and feeds on a wide variety of animals. Nevertheless when it is in Argentina its diet reduces mainly to insects such as locusts, crickets, grasshoppers, etc. caught and eaten on the wing.

Always in flight and sometimes very high in the sky they circle or fly past the reserve generally in big groups. 

Swainson's Hawk
16-11-13 © Claudia y Tito Di Mauro

Native to the United States and Canada this raptor migrates to Argentina during the austral summer. It is opportunistic and feeds on a wide variety of animals. Nevertheless when it is in Argentina its diet reduces mainly to insects such as locusts, crickets, grasshoppers, etc. caught and eaten on the wing.

Always in flight and sometimes very high in the sky they circle or fly past the reserve generally in big groups. 

Swainson's Hawk
16-11-13 © José Luis Blázquez

Native to the United States and Canada this raptor migrates to Argentina during the austral summer. It is opportunistic and feeds on a wide variety of animals. Nevertheless when it is in Argentina its diet reduces mainly to insects such as locusts, crickets, grasshoppers, etc. caught and eaten on the wing.

Always in flight and sometimes very high in the sky they circle or fly past the reserve generally in big groups. 


New bird species
Lesser Yellow-headed Vulture
Cathartes burrovianus
Lesser Yellow-headed Vulture
16-11-13 © José Luis Blázquez
Seen very high through a telecospe by Diego and Ulises. They were able to confirm it was a lesser yellow-headed vulture.

Chimango Caracara
Milvago chimango
Chimango Caracara
16-11-13 © Rodolfo Pani
White-crested Elaenia
Elaenia albiceps
White-crested Elaenia
17-11-13 © Carlos González Ledo
Dark-billed Cuckoo
Coccyzus melacoryphus
Dark-billed Cuckoo
17-11-13 © Carlos González Ledo
Striated Heron
Butorides striata
Striated Heron
01-11-13 © Claudia y Tito Di Mauro
Striated Heron
01-11-13 © Rodolfo Pani
Wood Stork
Mycteria americana
Wood Stork
19-11-13 © J. Simón Tagtachian
Wood Stork
19-11-13 © J. Simón Tagtachian
White-tailed Kite
Elanus leucurus
White-tailed Kite
16-11-13 © José Luis Blázquez
Maguari Stork
Ciconia maguari
Maguari Stork
16-11-13 © Claudia y Tito Di Mauro
Small-billed Elaenia
Elaenia parvirostris
Small-billed Elaenia
16-11-13 © J. Simón Tagtachian
Subtropical Doradito
Pseudocolopteryx acutipennis
Subtropical Doradito
01-11-13 © Claudia y Tito Di Mauro
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
16-11-13 © J. Simón Tagtachian



And they begin to increase in number
White-winged Coot
Fulica leucoptera
White-winged Coot
16-11-13 © J. Simón Tagtachian

Red-gartered and red-fronted coots as well

Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
16-11-13 © J. Simón Tagtachian
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
16-11-13 © J. Simón Tagtachian



Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
16-11-13 © J. Simón Tagtachian
Nenday Parakeet
Aratinga nenday
Nenday Parakeet
16-11-13 © J. Simón Tagtachian
Giant Wood-Rail
Aramides ypecaha
Giant Wood-Rail
16-11-13 © J. Simón Tagtachian
Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
16-11-13 © J. Simón Tagtachian
Black-necked Stilt
Himantopus mexicanus
Black-necked Stilt
16-11-13 © J. Simón Tagtachian
Picui Ground Dove
Columbina picui
Picui Ground Dove
16-11-13 © Claudia y Tito Di Mauro
Sooty-fronted Spinetail
Synallaxis frontalis
Sooty-fronted Spinetail
16-11-13 © Claudia y Tito Di Mauro
Bare-faced Ibis
Phimosus infuscatus
Bare-faced Ibis
16-11-13 © J. Simón Tagtachian
Common Gallinule
Gallinula galeata
Common Gallinule
16-11-13 © J. Simón Tagtachian



Esperando al aguatero esperando-al-aguateroEl aguatero, fotografiado días atrás por Simón y Adrián concitó la atención de los fotógrafos, que esperaron infructuosamente la reaparición del ave. © Claudia y Tito Di Mauro

Red-fronted Coot
Fulica rufifrons
Red-fronted Coot
16-11-13 © Claudia y Tito Di Mauro
Whistling Heron
Syrigma sibilatrix
Whistling Heron
16-11-13 © Claudia y Tito Di Mauro
Silver Teal
Anas versicolor
Silver Teal
16-11-13 © Gustavo F. Brahamian

Family seen for the first time on 26th of October

Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
16-11-13 © Rodolfo Pani

South American Painted-snipe
Nycticryphes semicollaris
South American Painted-snipe
12-11-13 © J. Simón Tagtachian
South American Painted-snipe
12-11-13 © J. Simón Tagtachian

Four other summer visitors have arrived
Glaucous-blue Grosbeak
Cyanoloxia glaucocaerulea
Glaucous-blue Grosbeak
09-11-13 © J. Simón Tagtachian
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
01-11-13 © Carlos González Ledo
White-winged Becard
01-11-13 © J. Simón Tagtachian
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
01-11-13 © Carlos González Ledo
Red-eyed Vireo
Vireo olivaceus
Red-eyed Vireo
01-11-13 © J. Simón Tagtachian

Read-eared turtle
Trachemys scripta elegans
Tortuga orejas rojas/Red-eared SliderTortuga exótica © J. Simón Tagtachian

New bird species
Swallow-tailed Kite
Elanoides forficatus
Swallow-tailed Kite
09-11-13 © Pablo Serur
Swallow-tailed Kite
09-11-13 © Pablo Serur



Golden-billed Saltator
Saltator aurantiirostris
Golden-billed Saltator
03-11-13 © Carlos González Ledo
If you want to know why a bird does not fall, read Perching and tendon locking mechanisms
Shiny Cowbird
Molothrus bonariensis
Shiny Cowbird
03-11-13 © Gustavo F. Brahamian
Shiny Cowbird
02-11-13 © J. Simón Tagtachian
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
02-11-13 © J. Simón Tagtachian
Coscoroba Swan
03-11-13 © Gustavo F. Brahamian
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
02-11-13 © J. Simón Tagtachian

Me, eating mulberries?


Crowned Slaty Flycatcher
Empidonomus aurantioatrocristatus
Crowned Slaty Flycatcher
02-11-13 © J. Simón Tagtachian
Crowned Slaty Flycatcher
01-11-13 © J. Simón Tagtachian
Crowned Slaty Flycatcher
01-11-13 © J. Simón Tagtachian
Crowned Slaty Flycatcher
02-11-13 © J. Simón Tagtachian

Masked Duck
Nomonyx dominicus
Masked Duck
02-11-13 © J. Simón Tagtachian
Fork-tailed Flycatcher
Tyrannus savana
Fork-tailed Flycatcher
01-11-13 © J. Simón Tagtachian
Rufous-bellied Thrush
Turdus rufiventris
Rufous-bellied Thrush
02-11-13 © José Luis Blázquez

I was on the Lizard Path on my way to Viamonte when this Rufous-bellied Thrush unexpectedly emerged from the vegetation. Strangely enough it had more or less the size of an Eared Dove... The bird perched for some seconds on a branch right in front of me and moved very restlessly with an open bill but emitting no sounds at all. It is difficult to explain its behaviour but if one "anthropomorfizes" it, I would say it wanted to puke and did not manage for some reason. The bird dived into the bottom of the vegetation. I waited and searched but it never appeared. I believe that the explanation might lie in some sort of intoxication (we will never know it) and as I can see it the general aspect of this bird does seem very promising....

Chimango Caracara
Milvago chimango
Chimango Caracara
02-11-13 © J. Simón Tagtachian

Ringed

Roadside Hawk
Rupornis magnirostris
Roadside Hawk
02-11-13 © J. Simón Tagtachian

Ringed

Roadside Hawk
01-11-13 © J. Simón Tagtachian

Ringed



Painted turtle
Trachemys scripta dorbignyi
Tortuga pintada/Painted Turtle© J. Simón Tagtachian Tortuga pintada Nº 579 que ingresó a la reserva en 8/5/12 proveniente del mascotismo, tenía un prolapso de recto, se aplicó una sutura y luego de su recuperación y cuarentena fue al estanque de covimet. Información brindada por Juan Carlos Sassaroli, veterinario de la Reserva


Pied-billed Grebe
Podilymbus podiceps
Pied-billed Grebe
02-11-13 © J. Simón Tagtachian

Mating

Great Grebe
Podiceps major
Great Grebe
02-11-13 © J. Simón Tagtachian
House Wren
Troglodytes aedon
House Wren
02-11-13 © J. Simón Tagtachian

The House Wren makes do with any cavity either natural or artificial to build a nest. It only arranges some vegetal material to support the eggs and that's it. We discovered this wren carrying material into this hole.

House Wren
02-11-13 © J. Simón Tagtachian

The House Wren makes do with any cavity either natural or artificial to build a nest. It only arranges some vegetal material to support the eggs and that's it. We discovered this wren carrying material into this hole.

Small-billed Elaenia
Elaenia parvirostris
Small-billed Elaenia
02-11-13 © J. Simón Tagtachian

This elaenia is carrying a web in its bill. Spider webs are used to stick the materials nests are built with. The nest is a tidy and elaborate cup which sits on branches. The inside of the nest is lined with feathers to cushion it. The feather the bird has on the tail might have got attached while working in the nest.

Wren-like Rushbird
Phleocryptes melanops
Wren-like Rushbird
01-11-13 © J. Simón Tagtachian
Wren-like Rushbird
Phleocryptes melanops
Wren-like Rushbird
02-11-13 © J. Simón Tagtachian
Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
02-11-13 © J. Simón Tagtachian
Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
02-11-13 © J. Simón Tagtachian

At white cedar Melia azedarach

Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
24-08-13 © Marcelo Castro

Big picture of the birds of October 2013
nopesp pasespAnd we reached 112 bird species photographed during October. The birds with no number attached were spotted during the survey of October but missing here.I want to thank Amelia Besana, Carlos González Ledo, Claudia y Diego Bastías, Claudia y Tito Di Mauro, Eduado Haene, Gustavo F. Brahamian, Ignacio Chantada, Jorge Simón Tagtachian, Natalia Mufato, Nicolás Giorgio y Pablo Mosto for their photos.