News - April 2015

censo

Polydamas Swallowtail Caterpillar
Battus polydamas
Borde de oro/Polydamas Swallowtail © Dolores Fernández
American Kestrel
Falco sparverius
Halconcito colorado/American KestrelMale © Claudia y Diego Bastías

Buff-winged Cinclodes
Cinclodes fuscus
30-04-15 © Claudia y Diego Bastías

On the last day of April Diego Bastías, Walter and Manuel saw a male Red-crested Finch
Coryphospingus cucullatus, a female Hepatic Tanager
Piranga flava and a Chotoy Spinetail
Schoeniophylax phryganophilus
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant© Mario Chimento
Limpkin
Aramus guarauna
Caraú/Limpkin© José Alberto Lell
Cocoi Heron
Ardea cocoi
Garza mora/Cocoi Heron© Mario Chimento
Blue-and yellow Tanager
Pipraeidea bonariensis
Naranjero M/Blue-and yellow Tanager M© Mario Chimento
Chimango caracara
Milvago chimango
Chimango/Chimango caracara© Mario Chimento
Spot-flanked Gallinule
Gallinula melanops
Pollona pintada/Spot-flanked Gallinule© Claudia y Diego Bastías
Nenday Parakeet
Aratinga nenday
Ñanday/Nenday Parakeet© Claudia y Diego Bastías
Checkered Woodpecker
Veniliornis mixtus
Carpintero bataraz chico/Checkered Woodpecker© Mario Chimento
Red-crested Cardinal
Paroaria coronata
Cardenal común/Red-crested Cardinal© Mario Chimento
More butterflies and moths
White-striped Longtail
Chioides catillus
Coluda de triángulo/White-striped Longtail© Claudia y Diego Bastías
Polydamas Swallowtail
Battus polydamas
Borde de oro/Polydamas Swallowtail© Hugo Aguilar
Common White-milk
Tatochila autodice
Lechera común/Common White-milk© Dolores Fernández
Common White-milk
Tatochila autodice
Lechera común/Common White-milk© Hugo Aguilar
Juno Silverspot
Dione juno
Juno/Juno Silverspot© Ezequiel Núñez Bustos
Juno Silverspot
Dione juno
Juno/Juno Silverspot© Mario Chimenti
Common Lazy
Actinote pellenea
Perezosa común/Common Lazy© Hugo Aguilar
Southern Fritillary
Euptoieta hortensia
Hortensia/Southern Fritillary© Hugo Aguilar

Rhyncopyga meisteri
Rhyncopyga meisteri© Victoria Mansilla
Velvetbean Moth
Anticarsia gemmatalis
Isoca de las leguminosas/Velvetbean Moth© Sergio Cusano

Sapium haematospermum
Curupí/Sapium haematospermum© Sergio Cusano
These protuberances are common on
Sapium haematospermum's leaves. They are called galls and are originated by a homopteran. These structures present tissue enlargement and they are hollow. The insect lays eggs and the larvae develop in the inside using the structure as a shelter.
In the photo some of the galls appear isolated and the leaf is barely modified. But when there are too many the leaf is twisted and deformed. They are green at the beginning and then turn reddish or red. Let's not confuse them with the fruit of this tree which are also look like red "small balls" CR
Some flowers and fruits
Wild Pea
Vigna adenantha
Poroto de río/Wild Pea© Sergio Cusano
Red wing
Heteropteris angustifolia
Mariposa/Red wing© Sergio Cusano
Balloon vine
Cardiospermum grandiflorum
Globito cipó/Balloon vine© Sergio Cusano
Balloon vine
Cardiospermum grandiflorum
Globito cipó/Balloon vine© Sergio Cusano
Mirlinton
Sechium edule
Papa del aire/Mirlinton© Sergio Cusano
Blue anise sage
Salvia guaranítica
Salvia azul/Blue anise sageViolet variety
© Sergio Cusano
Giant arrowhead
Sagittaria montevidensis
Sagitaria/Giant arrowhead© Sergio Cusano
Silk floss tree
Chorisia speciosa
Palo borracho/Silk floss tree© Sergio Cusano
New butterfly species: Ethologus Skipper
Nastra ethologus
Duendecillo de oro/Ethologus Skipper© Ezequiel Núñez Bustos
Duendecillo de oro/Ethologus Skipper© Ezequiel Núñez Bustos
Though its area of ditribution is the northeast of Argentina, this butterfly is considered to have a broader distribution. Its small size and colouring contributes to its passing unnoticed. Almost nothing is known about this butterfly. There is one record from Martín García Island, another from Punta Lara and this one from the reserve.
Gulls Gaviotas/GullsThe one ahead is a Grey-hooded Gull, the ones following, Black-hooded Gulls
© J. Simón Tagtachian
Many-coloured Rush-Tyrant
Tachuris rubigastra
Tachurí sietecolores/Many-coloured Rush-Tyrant© Hugo Aguilar
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager© Hugo Aguilar
Wren-like Rushbird
Phleocryptes melanops
Junquero/Wren-like Rushbird© Hugo Aguilar
White-tipped Plantcutter
Phytotoma rutila
Cortarramas H/White-tipped Plantcutter F© J. Simón Tagtachian
Three white egrets in Coypu Pond
Cattle Egret
Bubulcus ibis
Garcita bueyera/Cattle Egret© Cora Rimoldi
Snowy Egret
Egretta thula
Garcita blanca/Snowy Egret© Nicolás Giorgio
Great Egret
Ardea alba
<Garza blanca/Great Egret© Hugo Aguilari
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Curutié colorado/Yellow-chinned Spinetail© Dolores Fernández
Campo Flicker
Colaptes campestris
Carpintero campestre/Campo Flicker© J. Simón Tagtachian
Blue-and-white Swallow
Pygochelidon cyanoleuca
Golondrina barranquera/Blue-and-white Swallow© J. Simón Tagtachian
Bare-faced Ibis
Phimosus infuscatus
Cuervillo cara pelada/Bare-faced Ibis

Cuervillo cara pelada/Bare-faced Ibis© J. Simón Tagtachian
White-faced Whistling-Duck
Dendrocygna viduata
Sirirí pampa/White-faced Whistling-DuckAtacando a otro grupo de siriríes © Hugo Aguilar
Black-capped Warbling-Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling-Finch© J. Simón Tagtachian
Variable Oriole
Icterus pyrrhopterus
Boyerito/Variable Oriole© Hugo Aguilar
White-crested Tyrannulet
Serpophaga subcristata
Piojito común/White-crested Tyrannulet© Hugo Aguilar
Golden-crowned Warbler
Basileuterus culicivorus
Arañero coronado chico/Golden-crowned Warbler© Hugo Aguilar
Roadside Hawk
Rupornis magnirostris
Taguató común/Roadside Hawk© J. Simón Tagtachian
Lost and found
Rescate/Rescue Rescate/Rescue
Rescate/Rescue Rescate/Rescue
Rescate/Rescue Rescate/Rescue
On Friday, 24th the Reserve was closed to look for a young man reported lost. Luckily he was found safe and sound. Both the personnel of the reserve, Policía Federal, Bomberos, Defensa Civil and Prefectura were involved in the search.
Photos © Nicolás Giorgio
White-tipped Plantcutter
Phytotoma rutila
Cortarramas/White-tipped Plantcutter© Claudia y Diego Bastías
Black-headed Duck
Heteronetta atricapilla
Pato cabeza negra/Black-headed Duck© Claudia y Diego Bastías
Chimango Caracara
Milvago chimango
Chimango/Chimango Caracara© Claudia y Diego Bastías
Rock Pigeon
Columba livia
Paloma doméstica/Rock PigeonSeen from below © J. Simón Tagtachian

Large diving beetle
Megadytes giganteus
Large diving beetle
18-04-15 © Sergio Cusano
This beetle belongs into the family Dytiscidae, which are all aquatic. They spend their biological cycle in aquatic environments and are carnivores. Its body is hidrodinamyc and it has got hairs on its rear legs to swim more efficiently. They keep the air underneath their elytra, which are the hardened forewings which function like a case for the hindwings. When they need to get more air they go up to the surface exposing their rear part first. Though they are aquatic their wings are fully developed and can fly very well.

Golden Silk Orbweaver
Trichonephila clavipes
Golden Silk Orbweaver
04-04-15 © Claudia y Tito Di Mauro
Golden Silk Orbweaver
04-04-15 © Sergio Cusano
Cicada
Dorisiana drewseni
Cicada
09-04-15 © Sergio Cusano
Camuati Wasp
Polybia scutellaris
Camuati Wasp
21-03-15 © Victoria Mansilla
Paper wasp
Polistes sp.
Paper wasp
21-03-15 © Victoria Mansilla
Hoverfly
Palpada sp
Hoverfly
04-01-15 © Flor A Modeo
Cucurbit beetle
Diabrotica speciosa
Cucurbit beetle
04-04-15 © Victoria Mansilla
White Peacock
Anartia jatrophae
Cenicienta/White Peacock© J. Simón Tagtachian Cenicienta/White Peacock© J. Simón Tagtachian
Stories of the reserve
© Claudia y Tito Di Mauro
Southern Screamer
Chauna torquata
Chajá/Southern Screamer Chajá/Southern Screamer© J. Simón Tagtachian
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Curutié colorado/Yellow-chinned Spinetail Curutié colorado/Yellow-chinned Spinetail© J. Simón Tagtachian
Warbling Doradito
Pseudocolopteryx flaviventris
Doradito común/Warbling Doradito Doradito común/Warbling Doradito doradito común3 JST 4 15 © J. Simón Tagtachian
Coypu
Myocastor coypus
Coipo/Coypu© Nicolás Giorgio
Coipo/Coypu © J. Simón Tagtachian
Least grebe
Tachybaptus dominicus
Macá gris/Least grebe© Sergio Cusano
Yellow-billed Cardinal
Paroaria capitata
Cardenilla/Yellow-billed Cardinal© J. Simón Tagtachian
Unicoloured Blackbird
Agelasticus cyanopus
Varillero negro/Unicoloured BlackbirdThe juvenal plumage still shows © J. Simón Tagtachian
Hooded Siskin
Sporagra magellanica
Cabecitanegra comúnH/Hooded SiskinFFemale © Nicolás Giorgio
Hooded Siskin
Sporagra magellanica
Cabecitanegra común/Hooded SiskinMale © Nicolás Giorgio
Rufous Hornero
Furnarius rufus
Hornero/Rufus Hornero Hornero/Rufus HorneroNice titbit © J. Simón Tagtachian
Fawn-breasted Tanager
Pipraeidea melanonota
Saíra de antifaz/Fawn-breasted Tanager Otra invernal © Claudia y Diego Bastías
White-tipped Plantcutter
Phytotoma rutila
Cortarramas H/White-tipped Plantcutter FNow photographed © Claudia y Diego Bastías
White-tipped Dove
Leptotila verreauxi
Yerutí común/White-tipped Dove© Claudia y Diego Bastías
White-browed Blackbird
Sturnella superciliaris
Pecho colorado/White-browed Blackbird© J. Simón Tagtachian
Tropical Parula
Setophaga pitiayumi
Pitiayumí/Tropical parula© J. Simón Tagtachian
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak© J. Simón Tagtachian
White-banded Mockingbird
Mimus triurus
Calandria real/White-banded Mockingbird© J. Simón Tagtachian
New access at Viamonte nueva Via5 SAC 4 15 nueva Via4 SAC 4 15 nueva Via3 SAC 4 15 nueva Via SAC 4 15 nueva Via2 SAC 4 15 nueva Via1 SAC 4 15
The new access at Viamonte is already open to visitors
© Sergio Cusano
Works obras SAC 4 15Ditch to lay the cable for the bomb © Sergio Cusano

Limpkin
Aramus guarauna
19-04-15 © Cora Rimoldi
We looked for the bird vocalizing. It was this young limpkin calling
Thick-tailed Opossum
Lutreolina crassicaudata
© J. Simón Tagtachian
Rosy-billed Pochard - Fulvous Whistling-Duck
Netta peposaca - Dendrocygna bicolor
Pato picazo/Rosy-billed Pochard25 02 15 © Claudia y Diego Bastías
Picazo-sirirí/Pochard-Whistling-Duck9 03 15 © Claudia y Diego Bastías
Picazo-S. colorado/Rosy-billed P-Fulvous W-D29 03 15 © Carlos González Ledo
Picazo-S. colorado/Rosy-billed P-Fulvous W-D8 04 15 © Claudia y Tito Di Mauro
Picazo-S. colorado/Rosy-billed P-Fulvous W-D8 04 15 © Claudia y Tito Di Mauro
The Fulvous Whistling-Duck still stays with its adoptive family
Rosy-billed Pochard
Netta peposaca
Pato picazo J/ Rosy-billed Pochard J3 01 15 © Carlos González Ledo
Picazo y colorado/Rosy-billed Pochard and Cinnamon Teal18 04 15 © Sergio Cusano
Together with the Cinnamon Teal is the Rosy-billed Pochard when it was changing its plumage to adult. Three and a half months later it seems the broken wing is not an obstacle to survive
Red Shoveler
Anas platalea
Pato cuchara/Red Shoveler© Sergio Cusano
Pato cuchara/Red Shoveler© Diego Carús
Pato cuchara/Red Shoveler© Diego Carús

© Cora Rimoldi
The only duck to come back. It was seen in the past few days, today it was photographed.
Buff-winged Cinclodes
Cinclodes fuscus
Remolinera común/Buff-winged Cinclodes© Diego Carús
Another winter visitor
Yellow-chevroned Parakeet
Brotogeris chiriri
<Catita chirirí/Yellow-chevroned Parakeet© Sergio Cusano
With its favourite food. the fruit of
Chorisia speciosa
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant© Diego Carús
Cinnamon Teal
Anas cyanoptera
Barcinos y colorado/Yellow-billed Teals and Cinnamon Teal© Sergio Cusano
With Yellow-billed Teals
Anas flavirostris Picazo y colorado/Rosy-billed Pochard and Cinnamon Teal© Sergio Cusano
With the Rosy-billed Pochard Netta peposaca with the broken wing
Unicoloured Blackbird
Agelasticus cyanopus
Varillero negro/Unicoloured BlackbirdFemale © Sergio Cusano
Young
Rufescent Tiger-Heron
Tigrisoma lineatum
Hocó colorado/Rufescent Tiger-Heron© Claudia y Diego Bastías
Eared Dove
Zenaida auriculata
Torcaza común/Eared Dove© Sergio Cusano
Shiny Cowbird
Molothrus bonariensis
Tordo renegrido/Shiny Cowbird© Sergio Cusano
Cattle Egret
Bubulcus ibis
Garcita bueyera/Cattle Egret© Claudia y Diego Bastías
Scarlet-headed Blackbird
Amblyramphus holosericeus
Federal/Scarlet-headed Blackbird© Claudia y Diego Bastías
See how the young solicit food
© Claudia y Diego Bastías
New moth: Bagworm
Oiketicus platensis
Bicho canasto/Bagworm© Sergio Cusano
The bagworm belongs into the family Psychidae, whose main characteristic is the bag the larvae build with silk and sticks of their hosts. Once built it is no longer abandoned. In the last stage the bag is fixed to a branch. There it remains till it turns into an adult. If it is a female, it will stay in the bag since females do not have wings and do not fly. The male, instead, gets out of the bag in search for females to be fertilized. Females lay some 1000 eggs which remain in the bag till they become larvae. They leave the bag to reach the vegetation and some time later they begin to build their own bag.
Pupa of Lazy
Actinote sp.
Perezosa Pupa/Lazy Pupa© Victoria Mansilla
Caterpillar of Oily Lazy
Actinote mamita
Perezosa aceitada O/Oily Lazy C© Cora Rimoldi
New moth: Velvetbean Moth
Anticarsia gemmatalis
Anticarsia gemmatalis© Cora Rimoldi
The larva of this species, the Velvetbean caterpillar, is considered a pest. It feeds on leaves and pods or seeds of legumes such as lucerne, pea, soybean, bean, clover, etc.
Butterflies and moths of April
Ghost Yellow
Eurema albula sinoe
Blanquita/Ghost Yellow© Sergio Cusano
Southern Fritillary
Euptoieta hortensia
Hortensia/Southern Fritillary© Sergio Cusano
White-patched Duskywing
Chionara autander autander
Emparchada/White-patched Duskywing© Sergio Cusano
Common Yellow
Eurema deva
Limoncito común/Common Yellow© Claudia y Tito Di Mauro
Russula Metalmark
Emesis russula
Acróbata rojiza/Russula Metalmark© Sergio Cusano
Big Lazy
Actinote pyrrha
Perezosa grande/Big Lazy© Sergio Cusano
American White Skipper
Heliopyrgus americanus bellatrix
Ajedrezada de lunar/American White Skipper© Sergio Cusano
Argentine Checkered Skipper
Pyrgus orcynoides
Ajedrezada menor/Argentine Checkered Skipper© Claudia y Tito Di Mauro
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© Claudia y Tito Di Mauro
Arawacus ellida
Arawacus ellida
Élida/Arawacus ellida© Sergio Cusano

Atteva pustulella
Atteva pustulella© Claudia y Tito Di Mauro

Melanchroia aterea
Melanchroia aterea© Sergio Cusano
Whirlabout
Polites vibex catilina
Saltarina parda/WhirlaboutHembra © Sergio Cusano
Lyssipoides Metalmark
Riodina lyssipoides
Danzarina chica/Lyssipoides Metalmark© Sergio cusano
Ithra Crescent
Ortilia ithra
Bataraza/Ithra Crescent© Victoria Mansilla
Ithra Crescent
Ortilia ithra
Bataraza/Ithra Crescent© Sergio Cusano
Common Lazy
Actinote pellenea
Perezosa común/Common Lazy© Sergio Cusano
Common Lazy
Actinote pellenea
Perezosa común/Common Lazy© Sergio Cusano
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Claudia y Tito Di Mauro
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Sergio Cusano
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Claudia y Tito Di Mauro
Poltys Satyr
Parypthimoides poltys
Ocelada doble líne/Poltys Satyr© Sergio Cusano
Fiery Skipper
Hylephila phyleus
Saltarina amarilla/Fiery Skipper© Claudia y Tito Di Mauro
Southamerican Lady
Vanessa brasiliensis
Dama pintada/Southamerican Lady© Sergio Cusano
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© J. Simón Tagtachian
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Sergio Cusano
Monarch
Danaus erippus
Monarca/Monarch© Claudia y Tito Di Mauro
Monarch
Danaus erippus
Monarca/Monarch© Sergio Cusano

Ash-colored Cuckoo
Coccycua cinerea
15-04-15 © Claudia y Diego Bastías

Yellow-chevroned Parakeet
Brotogeris chiriri
Catita chirirí/Yellow-chevroned Parakeet © Claudia y Diego Bastías
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche MJ/Vermilion Flycatcher JMReturning to winter grounds © Claudia y Diego Bastías
Cinnamon Teal
Anas cyanoptera
Pato colorado/Cinnamon Teal © Pablo Serur

Pato colorado/Cinnamon Teal © Eduardo Carreyra

Pato colorado/Cinnamon Teal © Eduardo Carreyra

Pato colorado/Cinnamon Teal © Eduardo Carreyra

Pato colorado/Cinnamon Teal© J. Simón Tagtachian
On both Saturday and sunday this pair was seen at Coypu Pond
Straneck's Tyrannulet
Serpophaga griseicapilla
Piojito trinador/Straneck's TyrannuletFirst registers of winter birds. Identified by the song © Eduardo Carreyra
Brown-headed Gull
Chroicocephalus maculipennis
Gaviota capucho café/Brown-headed GullFirst registers of winter birds
© J. Simón Tagtachian
Snail Kite
Rostrhamus sociabilis
Caracolero/Snail Kite Caracolero/Snail Kite© J. Simón Tagtachian
White-face Whistling-Duck
Dendrocygna viduata
Sirirí pampa/White-face Whistling-Duck© José Alberto Lell
White-tufted Grebe
Rollandia rolland
Macá común/White-tufted Grebe© Pablo Serur
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard© José Alberto Lell
Birds and the machine pala mecánica JST 4 15© J. Simón Tagtachian
Red-eyed Vireo
Vireo olivaceus
Chiví común/Red-eyed VireoIt seems it does not want to return to winter grounds © J. Simón Tagtachian
Plumbeous Rail
Pardirallus sanguinolentus
Gallineta común/Plumbeous Rail© J. Simón Tagtachian
Striated Heron
Butorides striata
Garcita azulada/Striated Heron© J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero M/Blu-and-yellow Tanager M© J. Simón Tagtachian

White-tufted Grebe
Rollandia rolland
11-04-15 © Silvia Loiacono

Limpkin
Aramus guarauna
24-03-15 © Claudia y Tito Di Mauro
04-04-15 © Claudia y Tito Di Mauro
The limpkin keeps growing and is learning how to eat. First and second part

[viedo id="285" options="name,description,photographer" size="large"]
Green Kingfisher
Chloroceryle americana
04-04-15 © Claudia y Tito Di Mauro
First a female preening, then a male moving the tail up and down
Domestic variant of Mallard Duck
Anas platyrhynchos domesticus
Ánade real dom/Dom Mallard Duck © Jorge La Grotteria
Ánade real dom/Dom Mallard Duck© J. Simón Tagtachian
Photographed during the Birding Challenge on 21st of February. In both pictures it is with a Rosy-billed Pochard. Difference in size is clearly appreciated.
Straneck's Tyrannulet
Serpophaga griseicapilla

© Claudia y Diego Bastías
This is one of the winter visitors that has already arrived. Though it is not seen on the video, it can be perfectly heard. This tyrannulet is very much like the White-crested Tyrannulet
Serpophaga subcristata which is a resident bird. A slight difference in size -the white-crested is one cm longer on average- and the crown of the Straneck's Tyrannulet has not or has less white than that of the White-crested Tyrannulet.
Two clues to tell them apart: season (Straneck's in winter and White-crested all year round) and their vocalizations which are quite different. So the worst situation is the bird in winter and in silence. Though Alberto Gurni gives us his own trick - behaviour. According to Alberto the White-crested Tyrannulet is much more restless than the Straneck's.
Piojito trinador/Stranecks's TyrannuletPiojito Trinador
Serpophaga griseicapilla
© Carlos González Ledo
Piojito común/White-crested TyrannuletPiojito común
Serpophaga subcristata
© Claudia y Tito Di Mauro
Listen to the White-crested Tyrannulet's vocalization
© José Luis Merlo

The Straneck's Tyrannulet has a complicated story
Two among all the tyrannulets are very much alike - Serpophaga subcristata and
Serpophaga munda. They dominated the scene when Berlioz described a third species resembling the previous ones: Serpophaga griseiceps in 1959. More than twenty years later new investigations determined that this tyrannulet
Serpophaga griseiceps was the juvenile form of Serpophaga munda and again the number was reduced to the two initial tyrannulets.
In 1993 Straneck unifes Serpophaga subcristata and Serpophaga munda since they had the same vocalization. So the result was Serpophaga subcristata subcristata and Serpophaga subcristata munda as a subspecies. But he describes a new species which does have a different song. The characteristics of this new tyrannulet coincided with the Berlioz's description of Serpophaga griseiceps. So Straneck recovers the name Serpophaga griseiceps.
In 2004 the fusion of both Serpophaga griseiceps and Serpophaga munda was convalidated only on the grounds of the skins. In 2007 Straneck explains the flaws of this work and at the same time formally describes this tyrannulet as
Serpophaga griseicapilla since it differs both in vocalization, size and crown. In Spanish it is called piojito trinador and in English is known as Straneck’s Tyrannulet. This is unusual since names are not give after living ornithologists.
Whistling Heron
Syrigma sibilatrix
Chiflón/Whistling Heron© Sergio Cusano
Cattle Tyrant
Machetornis rixosa
Picabuey/Cattle Tyrant© Sergio Cusano
Ringed Teal
Callonetta leucophrys
Pato de collar/Ringed Teal© Nicolás Giorgio
Spectacled Tyrant
Hymenops perspicillatus
Pico de plata/Spectacled Tyrant© Claudia y Tito Di Mauro
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard© Nicolás Giorgio
Southern Lapwing
Vanellus chilensis
Tero común/Southern Lapwing© Nicolás Giorgio
Tero común/Southern Lapwing© Sergio Cusano
Limpkin
Aramus guarauna
Caraú/Limpkin© Claudia y Diego Bastías
Caraú/Limpkin© Nicolás Giorgio
Little limpkins keep growing
Least Grebe
Tachybaptus dominicus
Macá gris/Least Grebe© Alec Earnshaw
Bearer of good news. The Least Grebe caught a Caridean shrimp
Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate SpoonbillOn Saturday a group of 25 individuals flew past. On Sunday I found these three individuals on an islet at Coypu Pond
© Cora Rimoldi

Double-collared Seedeater
Sporophila caerulescens
08-04-15 © Cora Rimoldi
Double-collared Seedeater
Sporophila caerulescens

© Cora Rimoldi
Snail Kite
Rostrhamus socialbilis
Caracolero/Snail Kite© J. Simón Tagtachian
Cocoi Heron
Ardea cocoi
Garza mora/Cocoi HeronNow at Coypu Pond too © J. Simón Tagtachian
Garza mora/Cocoi Heron© Claudia y Tito Di Mauro
Green Kingfisher
Chloroceryle americana
<Martín pescador chico/Green Kingfisher© J. Simón Tagtachian
Solitary Black Cacique
Cacicus solitarius
Boyero/Solitary Black Cacique Boyero/Solitary Black CaciqueIt introduces the bill and gapes to break the twig and reach the insect. © J. Simón Tagtachian
Variable Oriole
Icterus pyrrhopterus
Boyerito/Variable OrioleWith a succulent worm taken out of the galls of
Sapium haematospermum © J. Simón Tagtachian
Blue-and-white Swallow
Pygochelidon cyanoleuca
Golondrina barranquera/Blue-and-white Swallow© J. Simón Tagtachian
Cinnamon Teal
Anas cyanoptera
pato colorado SL 4 15© Silvia Loiacono
Pato colorado/Cinnamon Teal© J. Simón Tagtachian



Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate SpoonbillA group of 25 © Sergio Cusano
New butterfly species: Juno Silverspot
Dione juno juno
Juno/Juno Silverspot Juno/Juno Silverspot© Sergio Cusano
Pato colorado
Anas cyanoptera
pato colorado SL 4 15© Silvia Loiacono
Pato colorado/Cinnamon Teal© J. Simón Tagtachian
Last summer visitors?
Swainson's Flycatcher
Myiarchus swaisoni
Burlisto pico canela/Swainson's Flycatcher© Javier Ubiría
Streaked Flycatcher
Myiodynastes maculatus
Benteveo rayado/Streaked Flycatcher© Sergio Cusano
Tropical Kingfisher
Tyrannus melancholicus
Suirirí real/Tropical Kingfisher© Sergio Cusano
Brown-chested Martin
Progne tapera
Golondrina parda/Brown-chested Martin© Sergio Cusano
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher Churrinche/Vermilion Flycatcher© Sergio Cusano
Spectacled Tyrant
Hymenops perspicillatus
Pico de plata/Spectacled Tyrant© Sergio Cusano
Least Grebe
Tachybaptus dominicus
Macá gris/Least Grebe© Sergio Cusano
Limpkin
Aramus guarauna
Caraú/Limpkin© Claudia y Diego Bastías
Bay-winged Cowbird
Agelaioides badius
Tordo músico/Agelaioides badiusJuvenile © Claudia y Diego Bastías
Red-crested Cardinal
Paroaria coronata
Cardenal/Red-crested CardinalJuvenile © Sergio Cusano