News - January 2017



Greyish Baywing
Agelaioides badius
Greyish Baywing
28-01-17 © Ricardo Palonsky
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
28-01-17 © Ricardo Palonsky

Look how I keep my balance!

Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
28-01-17 © Ricardo Palonsky
Cocoi Heron
Ardea cocoi
Cocoi Heron
28-01-17 © Ricardo Palonsky
European Starling
Sturnus vulgaris
European Starling
28-01-17 © Ricardo Palonsky

Ricardo says it was only half the flock

Giant Wood-Rail
Aramides ypecaha
Giant Wood-Rail
28-01-17 © Ricardo Palonsky

Other fauna
Coypu
Myocastor coypus
Coipo/Coypu© J. Simón Tagtachian
Coypu
Myocastor coypus
Coipo/Coypu© Sergio Cusano
Brazilian Guinea pig
Cavia aperea
Cuis/Brazilian guinea pig© Nicolás Giorgio
Brazilian Guinea pig
Cavia aperea
Cuis/Brazilian guinea pig© RAP
Black-and-white Tegu
Salvator merianae
Lagarto overo/Black-and-white Tegu © Eduardo Cusano
Black-and-white Tegu
Salvator merianaeLagarto overo/Black-and-white Tegu © Gustavo F. Brahamian
Black-and-white Tegu
Salvator merianae
Lagarto overo/Black-and-white Tegu © Nicolás Giorgio
Black-and-white Tegu
Salvator merianae
Lagarto overo/Black-and-white Tegu © RAP

Everyday food
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian
Neotropic Cormorant
21-01-18 © J. Simón Tagtachian

The fishermen normally throw fish to the coast. There a neotropic cormorant and a rufescent tiger-heron were waiting. The cormorant got an Ossancora eigenmanni. Other cormorants approached. It was about to eat the fish, but a juvenile kept it and flew away with the prey

Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
21-01-18 © J. Simón Tagtachian

The tiger-heron seems to have a Iheringichthys labrosus.

This other cormorant was also feeding in the Coypu Pond.
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
28-01-18 © Ricardo Palonsky
Neotropic Cormorant
28-01-18 © Ricardo Palonsky
Neotropic Cormorant
28-01-18 © Ricardo Palonsky

Ricardo says that the cormorant tried to eat this chameleon cichlid Australoheros facetus. It took the fish and turned it to put it in the right position but unsuccessfully. Another cormorant had a try too but failed. These cichlids may be 30 cm. The cormorant stayed above water a bit then it dived and the story was left unfinished




Magnolia
Magnolia grandiflora
magnolia NGG 29 12 16_329-12-16 © Nicolás Giorgio

Magnolia/Magnolia29-12-16 © Nicolás Giorgio
Native to the southeast of EEUU. It belongs to the family Magnoliaceae. It was introduced in the country to be used as city trees . It may be 25 m high. Leaves are lustrous and dark green. It flourishes in November and December. Flowers are lemon-scented.
Flowers and fruits
Yellow oleander
Thevetia peruviana
Adelfa amarilla/Yellow oleander© Sergio Cusano
Pope of the river
Stigmaphyllum littorale
Papa del río/Pope of the river© Sergio Cusano
Dicliptera tweediana
Dicliptera tweediana
Canaria rojo/Dicliptera tweediana© Elsa y Guillermo
Common moth vine
Araujia hortorum
Tasi/Common moth vine© J. Simón Tagtachian
Long flower evening primrose
Oenothera affinis
Flor de la oración/Long flower evening primrose© J. Simón Tagtachian
Dolichandra cynancoides
Dolichandra cynanchoides
Sacha huasca/Dolichandra cynancoides© Sergio Cusano
Pavonia sepium
Pavonia sepium
Malva de bosque/Pavonia sepium© Sergio Cusano
Nasturtium
Tropaeolum majus
Taco de reina/Nasturium© J. Simón Tagtachian
Whitemouth dayflower
Commelina erecta
Flor de Santa Lucía/Whitemouth dayflower© J. Simón Tagtachian
Purple wandering jew
Tradescantia zebrina
Oreja de tigre/Purple wandering jew© J. Simón Tagtachian
Silk floss tree
Chorisia speciosa
Palo borracho/Silk floss tree© RAP
Peach
Prunus persica
Durzano/Peach© J. Simón Tagtachian
Pink pavonia
Pavonia hastata
Pavonia/Pink pavonia© RAP
Pink pavonia
Pavonia hastata
Pavonia/Pink pavonia© J. Simón Tagtachian
Cow's foot
Bauhinia forficata
Pata de buey/Cow's foot© Sergio Cusano
Cow's foot
Bauhinia forficata
Pata de buey/Cow's foot© © J. Simón Tagtachian
Wild teasel/strong>
Dipsacus fullonum
Cardencha/Wild teasel© J. Simón Tagtachian
Morning glory
Ipomoea cairica
Campanilla lila/Morning glory© J. Simón Tagtachian
Tipu tree
Tipuana tipu
Tipa/Tipu tree© J. Simón Tagtachian
Fiddlewood
Citharexylum nontevidense
Tarumá/Fiddlewood© Cora Rimoldi
Dagger plant
Yucca aloifolia
Yuca/Dagger plant© Nicolás Giorgio
Cissus palmata
Cissus palmata
Cortina del cielo/Cissus palmata© J. Simón Tagtachian
Black-and-white Tegu - Colubroidan snake
Salvator merianae - Helicops leopardinus
overo-culebra/Tegu-snake28-1-17 © RAP
Overo2-RAP-28-1-1728-1-17 © RAP
Overo3-RAP-28-1-1728-1-17 © RAP
Ricardo tells us that the tegu caught the snake which defended by biting the tegu. Its mouth is wide open and threatining. The tegu managed to control it. Since it could not cut it, it swallowed it whole. In the last photo the last bit is being pushed by the tongue.
Butterflies, moth and insects
Lazy
Actinote sp
Perezosa/Actinote© Claudia Mon Possibly em>Actinote pellenea
Lazy
Actinote sp
Perezosa/Actinote© Claudia Mon Possibly em>Actinote pellenea
Lazy
Actinote sp
Perezosa/Actinote© Claudia Mon Possibly em>Actinote pellenea
Monarch
Danaus erippus
Monarca/Monarch© J. Simón Tagtachian
Claudina Crescent
Tegosa Claudina
Claudina/Claudina Crescent© Gustavo F. Brahamian

Pseudoautomeris grammivora
Pseudoautommeris grammivora© Sergio Cusano



Cicada
Dorisiana drewseni
Cicada
28-01-17 © J. Simón Tagtachian
Treehopper
Enchenopa sp.
Treehopper
08-12-16 © Ricardo Palonsky

New moth: Euglyphis sp.Flia Lasiocampidae22-1-17 © Sergio Cusano
Family Lasiocampidae



Striated Heron
Butorides striata
Striated Heron
28-01-17 © J. Simón Tagtachian
Striated Heron
28-01-17 © J. Simón Tagtachian
Striated Heron
01-01-17 © J. Simón Tagtachian
Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
28-01-17 © J. Simón Tagtachian
Screaming Cowbird
Molothrus rufoaxillaris
Screaming Cowbird
28-01-17 © J. Simón Tagtachian
Screaming Cowbird
28-01-17 © J. Simón Tagtachian

The screaming cowbird parasitizes almost exclusively the Greyish Baywing. A characteristic of this parasitism is the similarity of the plumage in the chicks of these two species till the time the screaming cowbird begins to change into adult plumage. Black spots begin to cover the screaming cowbird's body till it becomes black. In these photos we can see practically the beginning of this process. .


Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian

Eating an Australoheros facetus

Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian
Neotropic Cormorant
28-01-17 © J. Simón Tagtachian

Eating a marbled swamp eel Synbranchus marmoratus

Great Grebe
Podiceps major
Great Grebe
28-01-17 © J. Simón Tagtachian
Great Grebe
28-01-17 © J. Simón Tagtachian

White-faced Whistling-Duck
Dendrocygna viduata
28-01-17 © Claudia y Tito Di Mauro

Fight between two factions of white-faced whistling-ducks. Some spectators were a bit altered wattled jacana, neotropic cormorants, roseate spoonbill and others seemed indifferent 

Common Gallinule
Gallinula galeata
28-01-17 © Claudia y Tito Di Mauro

Feeding the chicks

Masked Gnatcatcher
Polioptila dumicola
28-01-17 © Claudia y Tito Di Mauro

Female in the nest

Streaked Flycatcher
Myiodynastes maculatus
28-01-17 © Claudia y Tito Di Mauro

Juvenile preening


Stripe-backed Bittern
Ixobrychus involucris
Stripe-backed Bittern
28-01-17 © Liliana H. Rodríguez
Stripe-backed Bittern
28-01-17 © J. Simón Tagtachian

Compare the size of the striped bittern and the black-crowned night-heron (32cm vs 58cm)

Dark-billed Cuckoo
Coccyzus melacoryphus
Dark-billed Cuckoo
28-01-17 © Elsa y Guillermo Marcaida
Dark-billed Cuckoo
28-01-17 © J. Simón Tagtachian
28-01-17 © Claudia y Tito Di Mauro
Ringed Kingfisher
Megaceryle torquata
Ringed Kingfisher
28-01-17 © Dolores Fernández
Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
28-01-17 © Dolores Fernández
White-lined Tanager
Tachyphonus rufus
White-lined Tanager
28-01-17 © Dolores Fernández
Cocoi Heron
Ardea cocoi
28-01-17 © Claudia y Tito Di Mauro

A juvenile learning to eat. 

Double-collared Seedeater
Sporophila caerulescens
28-01-17 © Claudia y Tito Di Mauro

Male singing


Parasitism Chalk-browed mockingbird - Shiny cowbird

Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
28-01-17 © Dolores Fernández

Parasitized by shiny cowbird


Chiloe Wigeon
Anas sibilatrix
Chiloe Wigeon
27-01-17 © Liliana H. Rodríguez
Chiloe Wigeon
27-01-17 © Liliana H. Rodríguez

Besides four white-faced whistlingducks and a semiconcealed yellow-billed teal

Chiloe Wigeon
27-01-17 © Liliana Rodríguez

Chimango Caracara
Milvago chimango
Chimango Caracara
26-01-17 © Gustavo F. Brahamian

Nice prey

Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
26-01-17 © Gustavo F. Brahamian
Monk Parakeet
Myiopsitta monachus
Monk Parakeet
26-01-17 © Gustavo F. Brahamian

Eating flower of tipu tree Tipuana tipu

House Sparrow
Passer domesticus
House Sparrow
26-01-17 © Gustavo F. Brahamian

With the upper maxila longer than the inferior one.

White-tufted Grebe
Rollandia rolland
White-tufted Grebe
26-01-17 © Gustavo F. Brahamian
White-rumped Swallow
Tachycineta leucorrhoa
White-rumped Swallow
26-01-17 © Gustavo F. Brahamian
Ringed Kingfisher
Megaceryle torquata
Ringed Kingfisher
26-01-17 © Sergio Cusano
Ringed Kingfisher
26-01-17 © Sergio Cusano
26-01-17 © Claudia y Tito Di Mauro

Perched female

Striated Heron
Butorides striata
Striated Heron
26-01-17 © Sergio Cusano
Striated Heron
26-01-17 © Sergio Cusano
Grayish Saltator
Saltator coerulescens
Grayish Saltator
26-01-17 © Ricardo Palonsky
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
26-01-17 © Sergio Cusano

Juveniles

26-01-17 ©

With the great egret searching for food. Note the difference in size between the great egret behind

26-01-17 © Claudia y Tito Di Mauro
Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
26-01-17 © Claudia Mon

White-winged Becard
Pachyramphus polychopterus
White-winged Becard
26-01-17 © Ricardo Palonsky
Fork-tailed Flycatcher
Tyrannus savana
Fork-tailed Flycatcher
26-01-17 © Ricardo Palonsky
Limpkin
Aramus guarauna
Limpkin
26-01-17 © Sergio Cusano
Southern Caracara
Caracara plancus
Southern Caracara
26-01-17 © Ricardo Palonsky
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
26-01-17 © Sergio Cusano
Brown-chested Martin
Progne tapera
Brown-chested Martin
26-01-17 © Ricardo Palonsky
White-rumped Swallow
Tachycineta leucorrhoa
White-rumped Swallow
26-01-17 © Sergio Cusano
European Starling
Sturnus vulgaris
European Starling
26-01-17 © Ricardo Palonsky
26-01-17 © Claudia y Tito Di Mauro
Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
26-01-17 © Ricardo Palonsky
Roseate Spoonbill
Platalea ajaja
21-01-18 © Claudia y Tito Di Mauro

A juvenile eating and preening



Swainson's Flycatcher
Myiarchus swainsoni
Burlisto pico canela/Swainson's Flycatcher20-11-16 © Juan Carlos Ferreyra

Burlisto pico canela/Swainson's Flycatcher14-1-17 © RAP
Burlisto pico canela/Swainson's Flycatcher19-1-17 © Claudia Mon
Leer esta historia



More about the Chiloe wigeon
Chiloe Wigeon
Anas sibilatrix
Chiloe Wigeon
25-01-17 © José Luis Merlo
Chiloe Wigeon
25-01-17 © José Luis Merlo
26-01-17 © José Luis Merlo

Photos in video format. Shows speculum and white rump

Chiloe Wigeon
25-01-17 © J. Simón Tagtachian
Chiloe Wigeon
25-01-17 © J. Simón Tagtachian

With a white-faced whistling-duck in front.

Chiloe Wigeon
25-01-17 © J. Simón Tagtachian
Chiloe Wigeon
25-01-17 © J. Simón Tagtachian
Chiloe Wigeon
25-01-17 © J. Simón Tagtachian

Red-and-white Crake
Laterallus leucopyrrhus
Red-and-white Crake
22-01-17 © Javier Guillermo González
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Ferruginous Pygmy-Owl
22-01-17 © Sergio Cusano
Maguari Stork
Ciconia maguari
Maguari Stork
22-01-17 © Sergio Cusano
Campo Flicker
Colaptes campestris
Campo Flicker
22-01-17 © Sergio Cusano
Unicolored Blackbird
Agelasticus cyanopus
Unicolored Blackbird
22-01-17 © Sergio Cusano
Wren-like Rushbird
Phleocryptes melanops
Wren-like Rushbird
22-01-17 © Sergio Cusano
Spectacled Tyrant
Hymenops perspicillatus
Spectacled Tyrant
22-01-17 © Sergio Cusano
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
22-01-17 © Sergio Cusano

Striped Owl
Pseudoscops clamator
Striped Owl
17-01-17 © Elsa y Guillermo Marcaida
Striped Owl
21-01-17 © J. Simón Tagtachian
Striped Owl
21-01-17 © J. Simón Tagtachian
Stripe-backed Bittern
Ixobrychus involucris
Stripe-backed Bittern
21-01-17 © Diego Carús
Stripe-backed Bittern
21-01-17 © Diego Carús
Dusky-legged Guan
Penelope obscura
Dusky-legged Guan
21-01-17 © Elsa y Guillermo Marcaida
Red-and-white Crake
Laterallus leucopyrrhus
Red-and-white Crake
21-01-17 © Elsa y Guillermo Marcaida
Red-and-white Crake
21-01-17 © Javier Ubiría
From different places
Fork-tailed Flycatcher
Tyrannus savana
Fork-tailed Flycatcher
21-01-17 © J. Simón Tagtachian
Green-winged Saltator
Saltator similis
Green-winged Saltator
21-01-17 © J. Simón Tagtachian
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
21-01-17 © J. Simón Tagtachian
White-rumped Swallow
Tachycineta leucorrhoa
White-rumped Swallow
21-01-17 © J. Simón Tagtachian
Gray-breasted Martin
Progne chalybea
Gray-breasted Martin
21-01-17 © J. Simón Tagtachian
White-lined Tanager
Tachyphonus rufus
White-lined Tanager
21-01-17 © J. Simón Tagtachian
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
21-01-17 © J. Simón Tagtachian

With bugweed fruit Solanum granulosum-leprosum


Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
19-01-17 © Ricardo Palonsky
Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
19-01-17 © Ricardo Palonsky
Yellow-billed Teal
Anas flavirostris
Yellow-billed Teal
19-01-17 © Ricardo Palonsky
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
19-01-17 © Ricardo Palonsky

Two females and a male

Limpkin
Aramus guarauna
Limpkin
19-01-17 © Ricardo Palonsky
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
19-01-17 © Nicolás Giorgio
Picazuro Pigeon
Patagioenas picazuro
Picazuro Pigeon
19-01-17 © Ricardo Palonsky
Nenday Parakeet
Aratinga nenday
Nenday Parakeet
19-01-17 © Ricardo Palonsky

Eating fruits of white cedar Melia azederach



Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
19-01-17 © Ricardo Palonsky



Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Coscoroba/Coscoroba Swan19-1-17 © Claudia Mon
Half an hour after the training flight witnessed by Nicolás, without the participation of one of the cygnets, Claudia and some other observers also noticed that there was something wrong with one cygnet. She tells us "that everybody but one was forming a file". They swam some distance when one of the adults realized something was happening to a cygnet. They returned and passed in front of the motionless cygnet. It stayed alone and then made a great effort to catch up with the family. In the last photo it is with the adult. Later as we were walking along the Lizard Path it was by himself in another area and at no time did we see the cygnet eat either in the morning or in the following two hours. As I see the photo now I can see it has the eyes closed." MON



Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio

Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio

Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio

Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio

Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio

Coscoroba/Coscoroba Swan19-1-17 © Nicolás Giorgio
And they finally they flew. This is the only family which bred in the reserve last year. Five cygnets were first photographed on 15th of September. Nicolás tells us that he witnessed the take off supervised by the adults. But one of the cygnets did not take part. The flight was short some a hundred meters and the five landed. (Two adults and two cygnets) The photo does not show the adult guiding the group.



Another case of hibridization
Híbrido/hybrid

Híbrido/hybrid
We presume this individual is a hybrid of White-faced Whistling-Duck and Fulvous Whistling-Duck. This is not the first case (See previous reports), but this time Sergio tood two photos which show very clearly the conjunction of both whistling-ducks' characteristics.
Híbrido/hybrid18-1-17 © Sergio Cusano
In the last phot with a roseate spoonbill and yellow-billed teal.
Yellow-billed Teal
Anas flavirostris
Pato barcino/Yellow-billed Teal29-12-16 © J. Simón Tagtachian

Pato barcino/Yellow-billed Teal29-12-16 © J. Simón Tagtachian

Pato barcino/Yellow-billed Teal4-1-17 © J. Simón Tagtachian

Pato barcino/Yellow-billed Teal4-1-17 © J. Simón Tagtachian

Pato barcino/Yellow-billed Teal7-1-17 © J. Simón Tagtachian
The colour of this duck was unusual. Resting on land with the bill tucked into the feathers we could not identify it. When it got on its feet we realized it looked like a yellow-billed teal, except for a swelling at the base of the bill the yellow-billed teal lacks. Only a chromatic aberration?

Turkey Vulture
Cathartes aura
Turkey Vulture
18-01-17 © Sergio Cusano
Turkey Vulture
18-01-17 © Sergio Cusano
Mottle-cheeked Tyrannulet
Phylloscartes ventralis
Mottle-cheeked Tyrannulet
18-01-17 © Sergio Cusano
Mottle-cheeked Tyrannulet
18-01-17 © Sergio Cusano
Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
18-01-17 © Sergio Cusano
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Yellow-chinned Spinetail
18-01-17 © Sergio Cusano
Whistling Heron
Syrigma sibilatrix
Whistling Heron
18-01-17 © Sergio Cusano
Kelp Gull
Larus dominicanus
Kelp Gull
18-01-17 © Sergio Cusano
Limpkin
Aramus guarauna
Limpkin
18-01-17 © Sergio Cusano
Green-winged Saltator
Saltator similis
Green-winged Saltator
18-01-17 © Sergio Cusano
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
18-01-17 © Sergio Cusano
Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
18-01-17 © Sergio Cusano
Eared Dove
Zenaida auriculata
Eared Dove
18-01-17 © Sergio Cusano



White-eyed Parakeet
Psittacara leucophtalmus
White-eyed Parakeet
14-01-17 © Ricardo Palonsky
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
14-01-17 © Ricardo Palonsky
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
14-01-17 © Ricardo Palonsky
Chimango Caracara
Milvago chimango
Chimango Caracara
14-01-17 © Ricardo Palonsky
Giant Wood-Rail
Aramides ypecaha
Giant Wood-Rail
14-01-17 © Ricardo Palonsky
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
14-01-17 © Dolores Fernández

With a ring encircling the neck and bill?

Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
14-01-17 © Rodrigo Folch
Rufous-bellied Thrush
Turdus rufiventris
Rufous-bellied Thrush
14-01-17 © Ricardo Palonsky
Rufous-bellied Thrush
14-01-17 © Ricardo Palonsky
Rufous-bellied Thrush
14-01-17 © Ricardo Palonsky
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
14-01-17 © Ricardo Palonsky
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
14-01-17 © Eduardo Nicolás Cusano



Growing
White-lined Tanager
Tachyphonus rufus
White-lined Tanager
14-01-17 © Sergio Cusano
Euler's Flycatcher
Lathrotriccus euleri
Euler's Flycatcher
14-01-17 © Eduardo Nicolás Cusano
Solitary Black Cacique
Cacicus solitarius
Solitary Black Cacique
14-01-17 © Eduardo Nicolás Cusano
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
14-01-17 © Sergio Cusano
Red-crested Cardinal
14-01-17 © Eduardo Nicolás Cusano
Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
14-01-17 © Sergio Cusano
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
14-01-17 © Sergio Cusano
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
14-01-17 © Eduardo Nicolás Cusano
Rufescent Tiger-Heron
14-01-17 © Eduardo Nicolás Cusano
Red-eyed Vireo
Vireo olivaceus
Red-eyed Vireo
14-01-17 © Eduardo Nicolás Cusano
Wattled Jacana
Jacana jacana
Wattled Jacana
14-01-17 © Eduardo Nicolás Cusano



New moth: Hylesia nigricans
Hylesia nigricans
Mariposa negra/Hylesia nigricans14-1-17 © Eduardo Cusano

Mariposa negra/Hylesia nigricans14-1-17 © Sergio Cusano
It belongs into the family Saturniidae, subfamily Hemileucinae. The hairs of this moth are urticating and cause dermatitis when in touch with the skin.
Urutu pit viper
Bothrops alternatus
Yarará grande/Urutu pit viper12-1-17 © J. Simón Tagtachian

Yarará grande/Urutu pit viper12-1-17 © J. Simón Tagtachian



Black-and-white Tegu
Salvator merianae
Lagarto overo/Black-and-white Tegu7-1-17 © Sergio Cusano
This tegu moves along the wall at Viamonte. It goes in and out of the reserve crossing the fence. Here with a piece of meat in its mouth.
Lagarto overo/Black-and-white Tegu8-1-17 © J. Simón Tagtachian
This one at the coast trying to find food
Butterflies
Tropical White
Gluthrophissa drusilla
Nacarada/Tropical White© Eduardo Cusano
Thoas Swallowtail
Heraclides thoas thoantiades
Limonera grande/Thoas Swallowtail© J. Simón Tagtachian
Polydamas Swallowtail
Battus polydamas
e oro/Polydamas Swallowtail© J. Simón Tagtachian
Polydamas Swallowtail
Battus polydamas
Borde de oro/Polydamas Swallowtail© J. Simón Tagtachian
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Sergio Cusano
Lyssipoides Metalmark
Riodina lyssipoides
Danarina chica/Lyssipoides Metalmark© Sergio Cusano
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© Sergio Cusano
Southamerican Lady
Vanessa braziliensis
Dama pintada/Southamerican Lady© Sergio Cusano
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Sergio Cusano
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Sergio Cusano

Euler's Flycatcher
Lathrotriccus euleri
Euler's Flycatcher
14-01-17 © Sergio Cusano
Euler's Flycatcher
14-01-17 © Sergio Cusano
Euler's Flycatcher
14-01-17 © Sergio Cusano
Mottle-cheeked Tyrannulet
Phylloscartes ventralis
Mottle-cheeked Tyrannulet
14-01-17 © Sergio Cusano
Mottle-cheeked Tyrannulet
14-01-17 © Sergio Cusano
Dusky-legged Guan
Penelope obscura
Dusky-legged Guan
14-01-17 © Sergio Cusano
Dusky-legged Guan
14-01-17 © Sergio Cusano
Dusky-legged Guan
14-01-17 © J. Simón Tagtachian
Dusky-legged Guan
14-01-17 © J. Simón Tagtachian
Dusky-legged Guan
14-01-17 © Eduardo Nicolás Cusano
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Yellow-chinned Spinetail
14-01-17 © Sergio Cusano
Yellow-chinned Spinetail
14-01-17 © Eduardo Nicolás Cusano
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
14-01-17 © J. Simón Tagtachian

Martins at the antenna
Brown-chested Martin
Progne tapera
Brown-chested Martin
14-01-17 © J. Simón Tagtachian
The antenna on the Alisos Path is the favourite spot for swallows and martins.
Gray-breasted Martin
Progne chalybea
Gray-breasted Martin
14-01-17 © J. Simón Tagtachian

Monk Parakeet
Myiopsitta monachus
Monk Parakeet
14-01-17 © Eduardo Nicolás Cusano
Wren-like Rushbird
Phleocryptes melanops
Wren-like Rushbird
14-01-17 © Sergio Cusano
Campo Flicker
Colaptes campestris
Campo Flicker
14-01-17 © Sergio Cusano
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
14-01-17 © Sergio Cusano
Great Grebe
Podiceps major
Great Grebe
14-01-17 © Sergio Cusano
Pied-billed Grebe
Podilymbus podiceps
Pied-billed Grebe
14-01-17 © Sergio Cusano
Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
14-01-17 © Eduardo Nicolás Cusano

Female at cow's foot Bauhinia forficata

Solitary Black Cacique
Cacicus solitarius
Solitary Black Cacique
14-01-17 © Eduardo Nicolás Cusano

Eating avocado Persea americana

Tropical Kingbird
Tyrannus melancholicus
Tropical Kingbird
14-01-17 © Sergio Cusano

With bee

Limpkin
Aramus guarauna
Limpkin
14-01-17 © Sergio Cusano
Limpkin
14-01-17 © Sergio Cusano
Limpkin
14-01-17 © Sergio Cusano
Limpkin
14-01-17 © Sergio Cusano

With apple snail Pomacea canaliculata


Whistling Heron
Syrigma sibilatrix

12 1 17 © Nicolás Giorgio
Nicolás was in the new viewpoint looking for the spoonbill when two whistling herons flying from Brasil stopped next to the viewpoint and began with this courtship ritual.
They moved in circles and crouched alternately. The stretched out the neck and screamed. They kept their feathers ruffled. It took six minutes and then disappeared behind some trees.
Simón from the sidewalk captured this 30 seconds of action

12 1 17 © J. Simón Tagtachian

Great Grebe
Podiceps major
Great Grebe
12-01-17 © J. Simón Tagtachian
Great Grebe
12-01-17 © J. Simón Tagtachian
Great Grebe
12-01-17 © J. Simón Tagtachian
Striated Heron
Butorides striata
Striated Heron
12-01-17 © J. Simón Tagtachian
White-eyed Parakeet
Psittacara leucophtalmus
White-eyed Parakeet
12-01-17 © J. Simón Tagtachian
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
12-01-17 © J. Simón Tagtachian
Guira Cuckoo
Guira guira
Guira Cuckoo
12-01-17 © J. Simón Tagtachian
Rufous-collared Sparrow
Zonotrichia capensis
Rufous-collared Sparrow
12-01-17 © J. Simón Tagtachian
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
12-01-17 © Nicolás Giorgio
Green-barred Woodpecker
Colaptes melanochloros
Green-barred Woodpecker
12-01-17 © Nicolás Giorgio

The pair of the wall

Variable Oriole
Icterus pyrrhopterus
Variable Oriole
12-01-17 © Nicolás Giorgio
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
12-01-17 © J. Simón Tagtachian
Rosy-billed Pochard
11-01-17 © Gustavo F. Brahamian
Rosy-billed Pochard
10-01-17 © Nicolás Giorgio
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
11-01-17 © Nicolás Giorgio
Red-eyed Vireo
Vireo olivaceus
Red-eyed Vireo
11-01-17 © Gustavo F. Brahamian
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
11-01-17 © Gustavo F. Brahamian
Black-necked Swan
11-01-17 © Gustavo F. Brahamian

Snowy Egret
Egretta thula
Snowy Egret
07-01-17 © Ricardo Palonsky
Cocoi Heron
Ardea cocoi
Cocoi Heron
07-01-17 © Ricardo Palonsky

With great egret and snowy egret from left to right

Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
07-01-17 © Ricardo Palonsky
Southern Caracara
Caracara plancus
Southern Caracara
07-01-17 © Ricardo Palonsky
Golden-billed Saltator
Saltator aurantiirostris
Golden-billed Saltator
07-01-17 © Ricardo Palonsky
Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate Spoonbill7 1 17 © J. Simón Tagtachian

Espátula rosada/Roseate Spoonbill7 1 17 © J. Simón Tagtachian

Espátula rosada/Roseate Spoonbill7 1 17 © J. Simón Tagtachian

The Roseate Spoonbill is not frequently seen at the reserve, though for the last days its permanence in the pond is calling the attention of birdwatchers. On 5th of January Juan Carlos Ferreyra shared the first photo of a spoonbill at Coypu and with better or worse luck everybody enjoyed the sight of this magnificent bird. On a walk we detected three individuals, one at Coypu Pond and two others which were very far at the Gull Pond.

This individual is a young and is feeding. In the photos above it detects the prey by feel, using the sensors in the bill. In the one below it finds it visually.
See more about feeding technique Espátula rosada/Roseate Spoonbill7 1 17 © J. Simón Tagtachian

Glaucous-blue Grosbeak
Cyanoloxia glaucocaerulea
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian
Glaucous-blue Grosbeak
08-01-17 © J. Simón Tagtachian

Many-colored Rush Tyrant
Tachuris rubrigastra
Many-colored Rush Tyrant
18-01-17 © J. Simón Tagtachian
Many-colored Rush Tyrant
08-01-17 © J. Simón Tagtachian
Many-colored Rush Tyrant
08-01-17 © J. Simón Tagtachian
Many-colored Rush Tyrant
08-01-17 © J. Simón Tagtachian
Many-colored Rush Tyrant
08-01-17 © J. Simón Tagtachian
Grayish Saltator
Saltator coerulescens
Grayish Saltator
08-01-17 © J. Simón Tagtachian
Green-winged Saltator
Saltator similis
Green-winged Saltator
08-01-17 © J. Simón Tagtachian
White-tipped Dove
Leptotila verreauxi
White-tipped Dove
08-01-17 © J. Simón Tagtachian
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
08-01-17 © J. Simón Tagtachian
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
08-01-17 © J. Simón Tagtachian
Snail Kite
Rostrhamus sociabilis
Snail Kite
08-01-17 © J. Simón Tagtachian
Snail Kite
08-01-17 © J. Simón Tagtachian
Snail Kite
08-01-17 © J. Simón Tagtachian
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
08-01-17 © J. Simón Tagtachian
Spectacled Tyrant
Hymenops perspicillatus
Spectacled Tyrant
08-01-17 © J. Simón Tagtachian

Behind a female shiny cowbird

White-tufted Grebe
Rollandia rolland
White-tufted Grebe
08-01-17 © J. Simón Tagtachian

In front a group of white-faced whistling-ducks

Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
08-01-17 © J. Simón Tagtachian
Solitary Black Cacique
Cacicus solitarius
Solitary Black Cacique
08-01-17 © J. Simón Tagtachian
Glittering-bellied Emerald
Chlorostilbon lucidus
Glittering-bellied Emerald
08-01-17 © J. Simón Tagtachian

Male at common moth vine Araujia sericifera


Spot-winged Pigeon
Patagioenas maculosa
Spot-winged Pigeon
07-01-17 © J. Simón Tagtachian
Cocoi Heron
Ardea cocoi
Cocoi Heron
07-01-17 © J. Simón Tagtachian
White-faced Ibis
Plegadis chihi
White-faced Ibis
07-01-17 © J. Simón Tagtachian
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
07-01-17 © Jesús Fernández
Dusky-legged Guan
Penelope obscura
Dusky-legged Guan
07-01-17 © Sergio Cusano
Dusky-legged Guan
07-01-17 © Sergio Cusano
Dark-billed Cuckoo
Coccyzus melacoryphus
Dark-billed Cuckoo
07-01-17 © Sergio Cusano
Wood Stork
Mycteria americana
Wood Stork
07-01-17 © Sergio Cusano
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
07-01-17 © Sergio Cusano
Screaming Cowbird
Molothrus rufoaxillaris
Screaming Cowbird
07-01-17 © Sergio Cusano
Black-capped Warbling-Finch
Poospiza melanoleuca
Black-capped Warbling-Finch
07-01-17 © Sergio Cusano
Ringed Teal
Callonetta leucophrys
Ringed Teal
07-01-17 © Sergio Cusano
Green-barred Woodpecker
Colaptes melanochloros
Green-barred Woodpecker
07-01-17 © Sergio Cusano
Campo Flicker
Colaptes campestris
Campo Flicker
07-01-17 © Sergio Cusano
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
07-01-17 © Sergio Cusano
Black-crowned Night-Heron
Nycticorax nycticorax
Black-crowned Night-Heron
07-01-17 © Sergio Cusano
Southern Lapwing
Vanellus chilensis
Southern Lapwing
07-01-17 © Sergio Cusano

Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
04-01-17 © J. Simón Tagtachian
Diademed Tanager
04-01-17 © J. Simón Tagtachian
Whistling Heron
Syrigma sibilatrix
Whistling Heron
04-01-17 © J. Simón Tagtachian



Home pigeon
Columba livia
Paloma mensajera/Home pigeon4 1 17 © J. Simón Tagtachian

Paloma mensajera/Home pigeon4 1 17 © J. Simón Tagtachian
The presence of this pigeon called our attention. Normally, rock pigeons are found in the sidewalk. It is ringed

Tropical Parula
Setophaga pitiayumi
Tropical Parula
04-01-17 © J. Simón Tagtachian
Tropical Parula
04-01-17 © J. Simón Tagtachian
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
04-01-17 © J. Simón Tagtachian
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
04-01-17 © J. Simón Tagtachian
Cocoi Heron
Ardea cocoi
Cocoi Heron
04-01-17 © J. Simón Tagtachian

Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
05-01-17 © Juan Carlos Ferreyra
Roseate Spoonbill
05-01-17 © Juan Carlos Ferreyra
Maguari Stork
Ciconia maguari
Maguari Stork
04-01-17 © Ricardo Palonsky
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
04-01-17 © Ricardo Palonsky
Brazilian Teal
04-01-17 © Ricardo Palonsky
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
04-01-17 © Ricardo Palonsky
White-faced Whistling-Duck
Dendrocygna viduata
White-faced Whistling-Duck
04-01-17 © Ricardo Palonsky
White-faced Whistling-Duck
04-01-17 © Ricardo Palonsky
Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
Narrow-billed Woodcreeper
04-01-17 © Ricardo Palonsky
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Black-and-rufous Warbling-Finch
04-01-17 © Ricardo Palonsky
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
04-01-17 © Ricardo Palonsky

In the last walks we hav seen only two out of the three cygnets. They are two months old

Southern Lapwing
Vanellus chilensis
Southern Lapwing
04-01-17 © Ricardo Palonsky
Rufescent Tiger-Heron
Tigrisoma lineatum
Rufescent Tiger-Heron
04-01-17 © Ricardo Palonsky
Masked Gnatcatcher
Polioptila dumicola
Masked Gnatcatcher
04-01-17 © Ricardo Palonsky
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
04-01-17 © Ricardo Palonsky
Common Gallinule
Gallinula galeata
Common Gallinule
04-01-17 © Ricardo Palonsky

Striated Heron
Butorides striata
Striated Heron
03-01-17 © Nicolás Giorgio
Southern Screamer
Chauna torquata
Southern Screamer
03-01-17 © Nicolás Giorgio

With snowy egret on the right and a coypu in the water

Cocoi Heron
Ardea cocoi
Cocoi Heron
03-01-17 © Nicolás Giorgio

With great egret on the right


Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
02-01-17 © Juan Carlos Ferreyra
Neotropic Cormorant
02-01-17 © Juan Carlos Ferreyra
Neotropic Cormorant
02-01-17 © Juan Carlos Ferreyra
Neotropic Cormorant
02-01-17 © Juan Carlos Ferreyra

Eating an Australoheros facetus

Wattled Jacana
Jacana jacana
Wattled Jacana
01-01-17 © J. Simón Tagtachian
Fulvous Whistling-Duck
Dendrocygna bicolor
Fulvous Whistling-Duck
01-01-17 © J. Simón Tagtachian
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
01-01-17 © J. Simón Tagtachian
White-tufted Grebe
Rollandia rolland
White-tufted Grebe
01-01-17 © J. Simón Tagtachian

With a cichlid Astyanax sp


Very end of 2016
White-browed Blackbird
Sturnella superciliaris
White-browed Blackbird
29-12-16 © J. Simón Tagtachian
Swainson's Flycatcher
Myiarchus swainsoni
Swainson's Flycatcher
29-12-16 © J. Simón Tagtachian
White-eyed Parakeet
Psittacara leucophtalmus
White-eyed Parakeet
29-12-16 © J. Simón Tagtachian

Parasitism: Red-eyed Vireo - Shiny cowbird
Red-eyed Vireo
Vireo olivaceus
Red-eyed Vireo
29-12-16 © J. Simón Tagtachian

Parasitized by shiny cowbird


Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
29-12-16 © J. Simón Tagtachian
Great Pampa-Finch
Embernagra platensis
Great Pampa-Finch
29-12-16 © J. Simón Tagtachian
Spot-flanked Gallinule
Gallinula melanops
Spot-flanked Gallinule
29-12-16 © J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
29-12-16 © J. Simón Tagtachian
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
29-12-16 © J. Simón Tagtachian
Rufous Hornero
Furnarius rufus
Rufous Hornero
29-12-16 © J. Simón Tagtachian

With a dragonfly

Rufous Hornero
29-12-16 © J. Simón Tagtachian

With a dragonfly

Rufous Hornero
29-12-16 © J. Simón Tagtachian

With a dragonfly