News - September 2015

Bran-coloured Flycatcher
Myiophobus fasciatus
Mosqueta estriada/Bran-coloured Flycatcher30 9 15 © José Alberto Lell

Mosqueta estriada/Bran-coloured Flycatcher30 9 15 © José Alberto Lell
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Caburé chico/Ferruginous Pygmy-Owl30 9 15 © José Alberto Lell
A mix to finish the month
Coypu
Myocastor coypus
Coipo/Coypu© Sergio Cusano
Coypu
Myocastor coypus
Coipo/Coypu© Diego Carús
Coypu
Myocastor coypus
Coipo/Coypu© J. Simón Tagtachian
Brazilian Guinea pig
Cavia aperea
CuisBrazilian Guinea pig© Sergio cusano
Side-necked Turtle
Phrynops hilarii
Tortuga de laguna/Side-necked Turtle© Sergio Cusano
Assorted turtles Tortugas/Turtles© Victoria Mansilla
Lyssipoides Metalmark
Riodina lyssipoides
Danzarina chica/Lyssipoides Metalmark© Sergio Cusano
Lyssipoides Metalmark
Riodina lyssipoides
Danzarina chica/Lyssipoides Metalmark© Victoria Mansilla

Carpenter bee
Xylocopa frontalis
Carpenter bee
13-09-15 © Sergio Cusano
Bumblebee
Bombus sp.
Bumblebee
03-09-15 © Hugo Aguilar

South American Tern
Sterna hirundinacea
Gaviotín sudamericano/South American Tern26 9 15 © Dolores Fernández

Gaviotín sudamericano/South American Tern27 9 15 © J. Simón Tagtachian
Adult of South American Tern
Sterna hirundinacea: red bill, white front and long and white tail.


Gaviotín sudamericano/South American Tern27 9 15 © J. Simón Tagtachian
Individual with dark bill, relatively short tail and with dark outer vane on outer rectrices (T6).
This individual shows all the diagnostic characters of a South American Tern first winter. In the photos it is well represented what I saw in the field. Though there is no image of the back of the bird it was alreday grey, this means it has undergone the first molt. This is the difference with a juvenile. That is, this bird is between 6 months and a year old, most probably between 8-9 months old. As I have observed during the molt there is a slight wear on the outer remige (P10), as well as in the tipos of T6. Another distinctive characteristic of non adults of this species is the pattern of wide marks (generally 3) on the tertiaries. This pattern is similar to and may only be confused with that of the Arctic Tern
S. vittata, which has a much shorter bill and an even shorter tail. Also the pattern of the back is much more contrasting since inner secondaries and primaries are whiter!


Gaviotín sudamericano/South American Tern27 9 15 © J. Simón Tagtachian
Individual with dark bill, relatively long tail and with dark outer vane on outer rectrices (T6).
This individual shows a more advanced stage than the previous one. This is manifested in a more pronounced wear of P10, being in general all primary remiges whiter than those of the previous individual.
Molt is seen to have begun at the tail. T5 (previous to the outer rectrice) is already grown. Though the molting stage of this bird is more advanced than the previous one the nomenclature is the same for both (first winter) since it has not undergone more than half of the molt of the remiges (flight feathers).
Explanation by Lui.
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan26 9 15 © Amelia Besana
El sábado por la mañana José Luis comentó que a uno de los pichones no se lo veía bien. Estaba muy quieto y no comía cuando los otros dos estaban en pleno movimiento. Incluso tuvo que ser incentivado por uno de los padres para moverse. Nos enteramos después que la familia quedó con solo dos pichones
Coscoroba/Coscoroba Swan27 9 15 © J. Simón Tagtachian
Brown-chested Martin
Progne tapera
Golondrina parda/Brown-chested Martin

Golondrina parda/Brown-chested Martin

Golondrina parda/Brown-chested Martin

Golondrina parda/Brown-chested Martin

Golondrina parda/Brown-chested Martin27 9 15 © J. Simón Tagtachian
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Curutié colorado/Yellow-chinned Spinetail25 9 15 © José Alberto Lell
New butterfly species: Bunichus Cattleheart
Parides bunichus damocrates
Viuda del monte/Bunichus Cattleheart

Viuda del monte/Bunichus Cattleheart27 9 15 © J. Simón Tagtachian
Rufous-browed Peppershrike
Cyclarhyis gujanensis
Juan chiviro/Rufous-browed Peppershrike

Juan chiviro/Rufous-browed Peppershrike27 9 15 © J. Simón Tagtachian
Grey Monjita
Xolmis cinereus
Monjita gris/Grey Monjita

Monjita gris/Grey Monjita

Monjita gris/Grey Monjita

Monjita gris/Grey Monjita27 9 15 © J. Simón Tagtachian
White-tailed Kite
Elanus leucurus
Milano blanco/White-tailed Kite

Milano blanco/White-tailed Kite

Milano blanco/White-tailed Kite27 9 15 © J. Simón Tagtachian
Black-necked Stilt
Himantopus mexicanus
Tero real/Black-necked Stilt

Tero real/Black-necked Stilt27 9 15 © J. Simón Tagtachian
Red Shoveler
Anas platalea
Pato cuchara/Red Shoveler

Pato cuchara/Red Shoveler27 9 15 © J. Simón Tagtachian
Fork-tailed Flycatcher
Tyrannus savana
Tijereta/Fork-tailed Flycatcher27 9 15 © J. Simón Tagtachian
Maguari Stork
Ciconia maguari
Cigüeña/Maguari Stork27 9 15 © J. Simón Tagtachian
Long-winged Harrier
Circus buffoni
Gavilán planeador/Long-winged Harrier27 9 15 © J. Simón Tagtachian
Spot-winged Pigeon
Patagioenas maculosa
Paloma manchada/Spot-winged Pigeon27 9 15 © J. Simón Tagtachian
Rufous-sided Crake
Laterallus melanophaius
Burrito común/Rufous-sided Crake27 9 15 © J. Simón Tagtachian
Greyish Saltator
Saltator coerulescens
Pepitero gris/Greyish Saltator27 9 15 © J. Simón Tagtachian
Ultamarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultamarine Grosbeak26 9 15 © Amelia Besana
© Amelia Besana
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager19 9 15 © Amelia Besana
Celestino/Sayaca Tanager26 9 15 © Amelia Besana
Great Kiskadee
Pitangus sulphuratus
Benteveo común/Great Kiskadee26 9 15 © Amelia Besana
Lake Duck
Oxyura vittata
Pato zambullidor chico/Lake Duck26 9 15 © Amelia Besana
Black-backed Water-Tyrant
Fluvicola albiventer
Viudita blanca/Black-backed Water-Tyrant© Dolores Fernández
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Caburé chico/Ferruginous Pygmy-Owl© Dolores Fernández
On Saturday during the walk two Ferruginous Pygmy-Owls were seen sitting on different branches of the same tree. As they were being photographed one approached the other.
© Cora Rimoldi
On Sunday Dolores found them much closer.
Caburé chico/Ferruginous Pygmy-Owl© Dolores Fernández
100 meter multispecies race
Homo sapiens vs Aramides cajaneus
Chiricote/Grey-necked Wood-RailNervous warming up
Chiricote-corredor/Grey-necked Wood-Rail-Runnerand winning by a head
© José Alberto Lell
Ultramarine Grosbeak
Cyanoloxia glaucocaerulea
Reinamora grande/Ultramarine Grosbeak© Hugo Aguilar
Record of White Woodpecker
Melanerpes candidus in the reserve. Lui saw three individuals flying south on Saturday 19th
Grey-breasted Martin
Progne chalybea
Golondrina doméstica/Grey-breasted Martin© J. Simón Tagtachian
Green Kingfisher
Chloroceryle americana
<Martín pescador chico/Green Kingfisher© J. Simón Tagtachian
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak© J. Simón Tagtachian
Scarlet-headed Balckbird
Amblyramphus holosericeus
federal/Scarlet-headed Balckbird© J. Simón Tagtachian
Glittering-bellied Emerald
Chlorostilbon lucidus
Picaflor común/Glittering-bellied EmeraldLapping up Water yellow flag
Iris pseudacorus © J. Simón Tagtachian
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager© J. Simón Tagtachian
Neotropic Cormorant
Phalacrocorax brasilianus
Biguá/Neotropic Cormorant© J. Simón Tagtachian

Bird Survey of September Saturday 19th organized by the COARECS
With the final results some photos to share. Summer visitors keep arriving and birds prepare for a new season.
Vista de Coipos/View of Coypu Pond
Observers spent a sunny and warm day.
Prunus sp Group route 2
Some participants of route 2
Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate Spoonbill

Espátula rosada/Roseate Spoonbill
© J. Simón Tagtachian
Brown-chested Martin
Progne tapera
Golondrina parda/Brown-chested MartinThe first to arrive
© Diego Carús
Double-collared Seedeater
Sporophila caerulescens
Corbatita común/Double-collared SeedeaterMales began to appear
© Diego Carús
Masked Yellowthroat
Geothlypis aequinoctialis
Arañero cara negra/Masked Yellowthroat© Judith Sandberg
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher© Diego Carús

Churrinche/Vermilion Flycatcher© Diego Carús
Snail Kite - Roadside Hawk
Rostrhamus sociabilis - Rupornis mangirostris
Caracolero-Taguató/Snail Kite/Roadside Hawk© Gustavo F Brahamian
White-faced Ibis
Phimosus infuscatus
Cuervillo de cañada/White-faced Ibis

Cuervillo de cañada/White-faced Ibis© Gustavo F Brahamian
Golden-billed Saltator
Saltator aurantiirostris
Pepitero de collar/Golden-billed Saltator© Marcelo Leanes
Checkered Woodpecker
Veniliornis mixtus
Carpintero bataraz chico/Checkered Woodpecker© Marcelo Leanes
Carpintero bataraz chico/Checkered Woodpecker© Gustavo F Brahamian
Rufescent Tiger-Heron
Tigrisoma lineatum
Hocó colorado/Rufescent Tiger-Heron © Judith Sandberg
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan© Judith Sandberg
Una todavía sigue anidando, la otra pareja ya presentaron a sus tres pichones hace unos días.
Coscoroba/Coscoroba Swan© Judith Sandberg

Coscoroba/Coscoroba Swan© Judith Sandberg
Yellow-billed Cardinal
Paroaria capitata
Cardenilla/Yellow-billed Cardinal© Marcelo Leanes
Guira Cuckoo
Guira guira
Pirincho/Guira Cuckoo© Judith Sandberg

Pirincho/Guira Cuckoo© Diego Carús
Se los veía muy oscuros
Great Grebe
Podiceps major
Macá grande/Great Grebe© Marcelo Leanes
White-tufted Grebe
Rollandia rolland
Macá común/White-tufted Grebe© Diego Carús
Picazuro Pigeon
Patagioenas picazuro
Paloma picazuró/Picazuro PigeonBien oscura © Diego Carús
Brazilian Teal
amazonetta brasiliensis
Pato cutirí/Brazilian Teal © Diego Carús
Golden-crowned Warbler
Basileuterus culicivorus
Arañero coronado chico/Golden-crowned WarblerWith a nice caterpillar © Diego Carús
Creamy-bellied Thrush
Turdus amaurochalinus
Zorzal chalchalero/Creamy-bellied ThrushEating fruit of White cedar © Judith Sandberg
Roadside Hawk
Rupornis magnirostris
Taguató común/Roadside Hawk© Diego Carús

Taguató común/Roadside Hawk© Judith Sandberg
Black-capped Warbling-Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling-Finch© Gustavo F Brahamian
House Wren
Troglodytes aedon
ratona común/House Wren© Marcelo Leanes
Great Pampa-Finch
Embernagra platensis
Verdón/Great Pampa-Finch© Diego Carús
Naroow-billed Woodcreeper
Lepidocolaptes angustirostris

© Cora Rimoldi
Masked Yellowthroat
Geothlypis aequinoctialis
Arañero cara negra/Masked YellowthroatFirst of the season © Hugo Aguilar
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher© José Alberto Lell

Churrinche/Vermilion Flycatcher© Victoria Mansilla
Warbling Doradito
Pseudocolopteryx flaviventris
Doradito común/Warbling Doradito© Hugo Aguilar
Scarlet-headed Blackbird
Amblyramphus holosericeus
Federal/Scarlet-headed Blackbird© Victoria Mansilla
Yellow-billed Teal
Anas flavirostris
Pato barcino/Yellow-billed Teal© Victoria Mansilla
Green-winged Saltator
Saltator similis
Pepitero verdoso/Green-winged Saltator© José Alberto Lell
Snail Kite
Rosthramus sociabilis
Caracolero/Snail Kite© Victoria Mansilla



Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant© José Alberto Lell
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager© José Alberto Lell
Chestnut-capped Blackbird
Chrysomus ruficapillus
Varillero congo/Chestnut-capped Blackbird© Victoria Mansilla
Great Pampa-Finch
Embernagra platensis
Verdón/Great Pampa-Finch© Victoria Mansilla
Great Kiskadee-Limpkin
Pitangus sulphuratus-Aramus guarauna
Echando/Chasing out

Echando/Chasing out

Echando/Chasing out© Victoria Mansilla
We were leaving at Brasil at dusk when we heard the limpkin scream. It was being harrassed by a couple of kiskadees which managed to drive it away.



Butterflies and moth of September
Syma Sister
Adelpha syma
Almirante menor/Syma Sister© Hugo Aguilar
Syma Sister
Adelpha syma
Almirante menor/Syma Sister© Hugo Aguilar
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© Sergio Cusano
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© Victoria Mansilla
Julia
Dryas iulia alcionea
Julia© Hugo Aguilar
Hermes Satyr
Hermeuptychia hermes
Hermes/Hermes Satyr© Victoria Mansilla
Common White-milk
Tatochila autodice
Lechera común/Common White-milk© Hugo Aguilar
Common Yellow
Eurema deva
Limoncito común/Common Yellow© Hugo Aguilar
Number eighty
Diaethria candrena
Ochenta chica/Number eightyMacho © Hugo Aguilar
Number eighty
Diaethria candrena
Ochenta chica/Number eightyHembra © Hugo Aguilar
Number eighty
Diaethria candrena
Ochenta chica/Number eighty© Hugo Aguilar
Tailed Sulphur
Phoebis neocypris
Azufrada coluda/Phoebis neocypris© Hugo Aguilar
Remus Greenstreak
Cyanophrys remus
Frotadora esmeralda coluda/Remus Greenstreak© Hugo Aguilar
Dichrous Skipper
Theagenes dichrous
Falcaca ribereña/Dichrous Skipper© Victoria Mansilla
Dichrous Skipper
Theagenes dichrous
Falcaca ribereña/Dichrous Skipper© Sergio Cusano
Dichrous Skipper
Theagenes dichrous
Falcaca ribereña/Dichrous Skipper© Hugo Aguilar
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Hugo Aguilar
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Victoria Mansilla
Mexican Silverdrop
Dione moneta
Moneta/Mexican Silverdrop© Victoria Mansilla
Mexican Silverdrop
Dione moneta
Moneta/Mexican Silverdrop© Sergio Cusano
Southamerican Lady
Vanessa braziliensis
Dama pintada/Southamerican Lady© Victoria Mansilla
Chilean Lady
Vanessa carye
Dama manchada/Chilean Lady© Sergio Cusano
Bella Mapwing
Hypanarthia bella
Bellísima común/Bella Mapwing© Hugo Aguilar
Bella Mapwing
Hypanarthia bella
Bellísima común/Bella Mapwing© Victoria Mansilla
Bella Mapwing
Hypanarthia bella
Bellísima común/Bella Mapwing© Sergio Cusano
Monarch
Danaus erippus
Monarca/Monarch© Sergio Cusano

Scordylia quadruplicaria
Scordylia quadruplicaria© Hugo Aguilar

Scordylia quadruplicaria
Scordylia quadruplicaria© Hugo Aguilar
Some flowers

Lantana megopotamica

Lantana megopotamica
Lantana megapotamica© Sergio Cusano
Lantana
Lantana camara
Lantana© Sergio Cusano
Climbing aloe Aloe trepador/Climbing aloe© Sergio Cusano Whiteflower fumitory
Fumaria capreolata
Flor de pajarito/Whiteflower fumitory© Sergio Cusano
Morning glory
Ipomoea cairica
Campanilla lila/Morning glory© Sergio Cusano
Common dandelion
Taraxacum officinale
Diente de león/Common dandelion© Sergio Cusano

Solanum granulosum leprosum
Fumo bravo/S. granulosum leprosum© Sergio Cusano
Hairy indian mallow
Abutilon pauciflorum
Malvavisco/Hairy indian mallow© Sergio Cusano
Spanish broom
Spartium junceum
Retama/Spanish broom© Sergio Cusano
Wood sorrel
Oxalis sp.
oxalis  SAC 9 15© Sergio Cusano

Prunus sp.
Prunus sp© Sergio Cusano

Prunus sp.
Prunus sp© Sergio Cusano





Fulvous Whistling-Duck
Dendrocygna bicolor
Sirirí colorado/Fulvous Whistling-DuckTriumphal celebration agter mating © Sergio Cusano
White-tufted Grebe
Rollandia rolland
macá común/White-tufted Grebe© José Alberto Lell
For the breeding season grebes change their basic o non-breeding plumage into the alternate or breeding one. The adults ready to breed lose their overall brown colouring and darken. Light bill, white throat and reddish neck become black. Likewise the black upperparts contrast with chestnut flanks. macá común/White-tufted Grebe© José Alberto Lell
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Caburé/Ferruginous Pygmy-Owl© Sergio Cusano
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan© José Alberto Lell
Coscoroba/Coscoroba Swan© Sergio Cusano
Buff-winged Cinclodes
Cinclodes fuscus
Remolinera común/Buff-winged Cinclodes© Alec Earnshaw
Remolinera común/Buff-winged Cinclodes© Sergio Cusano
Yellow-chevroned Parakeet
Brotogeris chiriri
Catita chirirí/Yellow-chevroned Parakeet© Sergio Cusano
Yellow-chinned Spinetail
Certhiaxis cinnamomeus
Curutié colorado/Yellow-chinned Spinetail© Sergio Cusano
Common Gallinule
Gallinula galeata
Pollona negra/Common GallinuleFight of gallinules with fans present © José Alberto Lell
Ringed Teal
Callonetta leucophrys
Pato de collar/Ringed Teal© Alec Earnshaw
Southern Caracara
Caracara plancus
Carancho/Southern CaracaraWith a nice piece © José Alberto Lell



New butterfly species: Straight-lined Sulphur
Rhabdodryas trite
Falsa hoja/Straight-lined Sulphur© Sergio Cusano
Another butterfly native to the north which has reached Buenos Aires. Very similar to Cloudless Sulphur
Phoebis sennae marcellina. It lacks the silver spots of the Cloudless Sulphur and has a brown line running through both wings.
Coscorobas en familia
Coscoroba coscoroba
Coscoroba/Coscoroba Swan© Dolores Fernández
Today we had a surprise: the pair with three cygnets
© Cora Rimoldi
Great Grebe
Podiceps major
Macá grande/Great Grebe© Dolores Fernández

White-lined Tanager
Tachyphonus rufus
05-09-15 © Cora Rimoldi
Last week a female eating loquat Eriobotrya japonica. This week a male eating in a most unusual way. "Lapping up" climbing aloe Aloe ciliaris
12-09-15 © Cora Rimoldi
Masked Duck
Nomonyx dominicus
Pato fierro/Masked Duck© Dolores Fernández

Rufous-collared Sparrow
Zonotrichia capensis
09-09-15 © Federico Andrés De Maio
Golden-billed Saltator
Saltator aurantiirostris
06-09-15 © Federico Andrés De Maio
South American Tern
Sterna hirundinacea
Gaviotín sudamericano/South American Tern© Germán Pugnali

Gaviotín sudamericano/South American Tern© Germán Pugnali

Gaviotín sudamericano/South American Tern© Germán Pugnali
Royal Tern
Thalasseus maximus
Gaviotín real/Royal Tern© Germán Pugnali

Gaviotín real/Royal Tern© Germán Pugnali
Sooty Tyrannulet
Serpophaga nigricans
Piojito gris/Sooty Tyrannulet© J. Simón Tagtachian

Piojito gris/Sooty Tyrannulet© J. Simón Tagtachian
Grey-breasted Warbling-Finch
Poospiza cabanisi
Monterita litoraleña/Grey-breasted Warbling-Finch© José Alberto Lell

Monterita litoraleña/Grey-breasted Warbling-Finch© José Alberto Lell
Yellow-chevroned Parakeet
Brotogeris chiriri
Catita chirirí/Yellow-chevroned Parakeet© José Alberto Lell
White-tipped Plantcutter
Phytotoma rutila
Cortarramas/White-tipped Plantcutter© José Alberto Lell
Tropical Parula
Setophaga pitiayumi
Pitiayumí/Tropical Parula© José Alberto Lell
Great Grebe
Rostrhamus sociabilis
Macá grande/Great Grebe

Macá grande/Great Grebe© Milano-Muszkats
Spectacled Tyrant
Hymenops perspicillatus
Pico de plata/Spectacled Tyrant© Sergio Cusano
Glittering-bellied Emerald
Chlorostilbon lucidus
Picaflor común/Glittering-bellied Emerald© Sergio Cusano
Kelp Gull
Larus dominicanus
Gaviota cocinera/Kelp GullYoung © Victoria Mansilla
Snail Kite
Rostrhamus sociabilis
Caracolero/Snail Kite© Victoria Mansilla
Ferruginous Pygmy-Owl
Glaucidium brasilianum
Caburé chico/Ferruginous Pygmy-Owl© Alec Earnshaw

Caburé chico/Ferruginous Pygmy-Owl© Victoria Mansilla
Victoria saw it on Satruday and Alec on Sunday
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero/Blue-and-yellow Tanager© Sergio Cusano
Naranjero/Blue-and-yellow Tanager© Dolores Fernández
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager© Dolores Fernández



White-faced and Bare-faced Ibises
Phimosus infuscatus -Plegadis chihi
Cuervillos/IbisesBare-faced Ibis with clearer face and legs not extending beyond the tail.
© Sergio Cusano
Sooty-fronted Spinetail
Synallaxis frontalis
Pijuí frente gris/Sooty-fronted Spinetail© Sergio Cusano
Southern Lapwing
Vanellus chilensis
Tero común/Southern Lapwing© Sergio Cusano
Fork-tailed Flycatcher
Tyrannus savana
Tijereta/Fork-tailed Flycatcher© Hugo Aguilar
Diademed Tanager
Stephanophorus diadematus
Frutero azul/Diademed Tanager© Hugo Aguilar
Hepatic Tanager
Piranga flava
Fueguero común/Hepatic Tanager© Hugo Aguilar
Grey-throated Warbling-Finch
Poospiza cabanisi
Monterita litoraleña/Grey-throated Warbling-Finch© Hugo Aguilar
Green Kingfisher
Chloroceryle americana
Martín pescador chico/Green Kingfisher© Hugo Aguilar
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager© Hugo Aguilar
Lake Duck
Oxyura vittata
Pato zambullidor chico/Lake Duck© Hugo Aguilar
Green-winged Saltator
Saltator similis
Pepitero verdoso/Green-winged Saltator© Hugo Aguilar
Vermilion Flycatcher
Pyrocephalus rubinus
Churrrinche/Vermilion Flycatcher© Claudia y Diego Bastías
Masked duck
Nomonyx dominicus
Pato fierro/Masked duck

Pato fierro/Masked duckChanging plumage © Sergio Cusano
Blue-and-white Swallow
Pygochelidon cyanoleuca
Golondrina barranquera/Blue-and-white Swallow © J. Simón Tagtachian
Unicoloured Blackbird
Agelasticus cyanopus
Varillero negro/Unicoloured Blackbird© Sergio Cusano
Stranec's Tyrannulet
Serpophaga griseicapilla
Piojito trinador/Stranec's TyrannuletSergio recognized it by the song. Ready to leave? © Sergio Cusano
Pied-billed Grebe
Podilymbus podiceps
Macá pico grueso/Pied-billed GrebeWith the bill crossed by a black stripe indicating the breeding season is on
© Sergio Cusano
Great Grebe
Podiceps major
Macá grande/Great GrebeTambién con plumaje alterno o nupcial © Sergio Cusano
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan© Claudia y Diego Bastías
Great Pampa-Finch
Embernagra platensis
Verdón/Great Pampa-Finch© Sergio Cusano
Limpkin
Aramus guarauna
Caraú/LimpkinEating an apple snail © Sergio Cusano
Thick-tailed Opossum
Lutreolina crassicaudata
Comadreja colorada/Thick-tailed Opossum© Sergio Cusano
The opposum is more active at dawn and dusk. Here it is crossing the pond in broad daylight, something we had not registered, though it is a good swimmer and climber
Number eighty
Ochenta chica/Number eighty© J. Simón Tagtachian Ochenta chica/Number eighty© J. Simón Tagtachian
Works Obras/Works

Obras/Works

Obras/Works© Sergio Cusano
The machines crossed the embankment into the Giant arrows' area