News - April 2017

Flowers and fruits
Calico flower
Aristolochia elegans
Aristoloquia/Calico flower© RAP
Calico flower
Aristolochia elegans
Aristoloquia/Calico flower© Victoria Mansilla
Bugweed
Solanum granulosum-leprosum
Fumo bravo/Bugweed© Victoria Mansilla
Bugweed
Solanum granulosum-leprosum
Fumo bravo/Bugweed© Victoria Mansilla
False loosestrife
Ludwigia elegans
Duraznillo del agua/False loosestrife© Carlos González Ledo
Cow pea
Vigna luteola
Porotillo/Cow pea© Carlos González Ledo
Pink Pavonia
Pavonia hastata
Pavonia/Pink pavonia© RAP
Pampas grass
Cortadeira selloana
Cortadera/Pampas grass© J. Simón Tagtachian
Moonflower
Ipomoea alba
Dama de noche/Moonflower© RAP
Zephir Lily
Zephyrantes candida
Axucenita del campo/Zephir Lily© Carlos González Ledo
Box elder
Acer negundo
Arce/Acer negundo© J. Simón Tagtachian
Castor bean
Ricino communis
Ricino/Castor bean© RAP
Silk floss tree
Chorisia speciosa
Palo borracho/Silk floss tree© RAP
Silk floss tree
Chorisia speciosa
Palo borracho/Silk floss tree© Victoria Mansilla
Indian shot
Canna indica
Achira roja/Indian shot© RAP
Giant Arrow
Sagitaria montevidensis
Sagitaria/Giant Arrow© Carlos González Ledo
Last butterflies and a moth of the month
Southern Fritillary
Euptoieta hortensia
Hortensia/Southern Fritillary© Carlos Toledo
Malina Hairstreak
Rekoa malina
Frotadora jorobada común/Malina Hairstreak© Victoria Mansilla
Common White-milk
Tatochila autodice
Lechera común/Common White-milk© Victoria Mansilla
Eufala Skipper
Lerodea eufala
Medialuna común/Lerodea eufala© Victoria Mansilla
Celmis Satyr
Ypthimoides celmis
Marrón del pastizal/Celmis Satyr© Victoria Mansilla
Scordylia quadruplicaria
Scordylia quadruplicaria
Scordylia quadruplicaria© Victoria Mansilla
Ithra Crescent
Ortilia ithra
Bataraza/Ithra Crescent© Victoria Mansilla
Ithra Crescent
Ortilia ithra
Bataraza/Ithra Crescent© Carlos Toledo
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© RAP
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© RAP
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© Carlos Toledo
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© Carlos Toledo
Common Lazy
Actinote pellenea
Perezosa común/Common Lazy© Victoria Mansilla
Big Lazy
Actinote pyrrha
Perezosa grande/Big Lazy© Carlos Toledo
Julia
Dryas iulia alcionea
Julia© Sergio Cusano
Common Yellow
Eurema deva
Limoncito común/Common Yellow© Victoria Mansilla
Laurentia Emperor
Loxocopa laurentia
Zafiro común/Laurentia Emperor© Victoria Mansilla
Laurentia Emperor
Loxocopa laurentia
Zafiro común/Laurentia Emperor© RAP
Bella Mapwing
Hypanartia bella
Bellísima común/Bella Mapwing© Victoria Mansilla
Bella Mapwing
Hypanartia bella
Bellísima común/Bella Mapwing© Victoria Mansilla



New butterfly species: Silver-banded Hairstreak
Chlorostrymon simaethis
Banda de plata/Silver-banded Hairstreak29-4-17 © Victoria Mansilla
Coypu
Myocastor coypus
Coipo/Coypu© Carlos Toledo Coipo/Coypu© Victoria Mansilla
Coipo/Coypu© Sergio Cusano Coipo/Coypu© J. Simón Tagtachian
Coipo/Coypu© J. Simón Tagtachian Coipo/Coypu© J. Simón Tagtachian
It is astonishing the number of all-sized coypus seen both in the Duck and Gull Ponds. The coypu may breed two or three times during the year having up to 13 newborn coypus. At the age of six they are fertile. They are predated by caracaras. We hav shown the caracaras in action.
The coypu of the video is eating, we can not see what, but it is obviously a plant since they are herbivores. They cut the vegetal material with their incisors or pull it with hands which also help them eat it. The orange spot which is briefly seen before diving are the incisors.
© RAP
Black-and-white Tegu Lizard
Salvator merianae
Lagarto overo/Black-and-white Tegu Lizard© Nicolás Giorgio
Mourning Sierra-Finch
Phrygilus fruticeti
Yal negro/Mourning Sierra-Finch29-4-17 © Adriana Silva
Another winter bird besides the Dark-faced Ground-Tyrant and the Bar-winged Cinclodes registered this year. The three of them on Saturday.
Maguari Stork
Ciconia maguari
Cigüeña/Maguari Stork26-4-17 © Eduardo Ibarra
Red-and-white Crake
Laterallus melanophaius
Burrito colorado/Red-and-white Crake29-4-17 © RAP

Burrito colorado/Red-and-white Crake29-4-17 © RAP
Wren-like Rushbird
Phleocryptes melanops
Junquero/Wren-like Rushbird29-4-17 © RAP

Junquero/Wren-like Rushbird29-4-17 © RAP
Sooty Tyrannulet
Serpophaga nigricans
Piojito gris/Sooty Tyrannulet29-4-17 © RAP

Piojito gris/Sooty Tyrannulet29-4-17 © RAP
Green-winged Saltator
Saltator coerulescens
Pepitero verdoso/Green-winged Saltator29-4-17 © RAP
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak29-4-17 © RAP
Macho
Reinamora grande/Ultramarine Grosbeak29-4-17 © RAP
Hembra
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant29-4-17 © RAP
Cocoi Heron
Ardea cocoi
Garza mora/Cocoi Heron29-4-17 © RAP
During the day
Garza mora/Cocoi Heron29-4-17 © RAP
At night
White-winged Becard
Pachyramphus polychopterus
Anambé común/Whit-winged Becard29-4-17 © RAP
Green-barred Woodpecker
Colaptes melanochloros
Carpintero real/Green-barred Woodpecker29-4-17 © RAP
Cattle Tyrant
Machetornis rixosa
Picabuey/Cattle Tyrant29-4-17 © RAP
Rufous-bellied Thrush
Turdus rufiventris
Zorzal colorado/Rufous-bellied Thrush29-4-17 © RAP



Dark-faced Ground-Tyrant
Muscisaxicola maclovianus
Dormilona cara negra/Dark-faced Ground-Tyrant29-4-17 © María Victoria Di Stasio

Dormilona cara negra/Dark-faced Ground-Tyrant29-4-17 © María Victoria Di Stasio
29-4-17 © Cora Rimoldi
We had been checking the shore for the presence of the Dark-faced Ground-Tyrant or the Bar-winged Cinclodes, two winter birds associated to this environment. As we got to the Meeting Point Adr´ián saw something moving far on the shore. It was no more and no less the Dark-faced Ground-Tyrant.
Bar-winged Cinclodes
Cinclodes fuscus
Remolinera común/Bar-winged Cinclodes29-4-17 © Javier González
Remolinera común/Bar-winged Cinclodes29-4-17 © Javier González
Sooty Tyrannulet
Serpophaga nigricans
Piojito gris/Sooty Tyrannulet29-4-17 © Javier González
Piojito gris/Sooty Tyrannulet29-4-17 © Javier González
Roseate Spoonbill/strong>
Platalea ajaja

29-4-17 © Cora Rimoldi
Carlos Agulian told us about 5 spoonbills he saw from the sidewalk. From the new viewpoint we could only see this individual, the rest were hidden behind the isle. Later we saw the five on the wing.
Wood Stork
Mycteria americana
Tuyuyú/Wood Stork29-4-17 © Javier González
Eran treinta y están toditas en la foto de Javier Tuyuyú/Wood Stork29-4-17 © J. Simón Tagtachian
Birds in all stages of development as seen in Simon's photo. More yellow bills and necks with different amount of black colouration
Snail Kite
Rostrhamus sociabilis
Caracolero/Snail Kite29-4-17 © Javier González
Caracolero/Snail Kite29-4-17 © Javier González
Caracolero/Snail Kite29-4-17 © J. Simón Tagtachian
Caracolero/Snail Kite29-4-17 © J. Simón Tagtachian
caracolero JST 29-4-17_929-4-17 © J. Simón Tagtachian
Rufous Hornero
Furnarius rufus
Hornero/Rusfous Hornero29-4-17 © J. Simón Tagtachian
Hornero/Rusfous Hornero29-4-17 © J. Simón Tagtachian
Whistling Heron
Syrigma sibilatrix
Chiflón/Whistling Heron29-4-17 © J. Simón Tagtachian
Yellow-billed Cardinal
Paroaria capitata
Cardenilla/Yellow-billed Cardinal29-4-17 © J. Simón Tagtachian

Roseate Spoonbill
Platalea ajaja
29-04-17 © Cora Rimoldi

Feeding at the Coypu Pond

Carlos Agulian told us about 5 spoonbills he saw from the sidewalk. From the new viewpoint we could only see this individual, the rest were hidden behind the isle. Later we saw the five on the wing.

Roadside Hawk
Rupornis magnirostris
Taguató común/Roadside Hawk25-4-17 © J. Simón Tagtachian

Hooded Siskin
Spinus magellanicus
Cabecitanegra común/Hooded Siskin25-4-17 © J. Simón Tagtachian

Great Kiskadee
Pitangus sulphuratus
Benteveo común/Great Kiskadee25-4-17 © J. Simón Tagtachian
Kelp Gull
Larus dominicanus
Gaviota cocinera/Kelp Gull22-4-17 © Carlos Toledo
Double-collared Seedeater
Sporophila caerulescens
Corbatita común/Double-collared Seedeater22-4-17 © Carlos Toledo
Sooty-fronted Spinetail
Synallaxis frontalis
Pijuí frente grís/Sooty-fronted Spinetail22-4-17 © Carlos Toledo
Black-capped Warbling Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling Finch22-4-17 © Carlos Toledo
Pijuí plomizo
Synallaxis spixi

RAP could only capture the voice of this spinetail, which does not show too much. The photo is by Elsa and Guillermo to refresh the look of this bird


11-3-17 © RAP
Pijuí plomizo/Spix's Spinetail4-2014 © Elsa y Guyillermo
Rufescent Tiger-Heron
Tigrisoma lineatum
Victoria and Ricardo witnessed this display between two tiger-herons. They say both tiger-herons kept at several meters distance. Only one makes the whole gestural display while the other (in the last photo) looks impassiblely.
Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla
Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla
Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla
Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla  
Southern Caracara
Caracara plancus
In this sequence Victoria and Ricardo tell us about a scene where caracaras where fighting for the headstart on this coypu. We spied them till one of them looked hard at us. Just in case...
Caracaras' voices called our attention. In the second photo they confront and one keeps the other against the ground. Then the whole group (as if they had arranged the feeding order) looks at the one eating first and waiting for their turns. VYR
Carancho/Southern Caracara22-4-17 © Victoria Mansilla Carancho/Southern Caracara22-4-17 © Victoria Mansilla
Carancho/Southern Caracara22-4-17 © Victoria Mansilla Carancho/Southern Caracara22-4-17 © Victoria Mansilla
Carancho/Southern Caracara22-4-17 © Victoria Mansilla Carancho/Southern Caracara22-4-17 © Victoria Mansilla
Green Kingfisher
Chloroceryle americana
Martín pescador chico/Green Kingfisher22-4-17 © RAP
Sooty-fronted Spinetail
Synallaxis frontalis
Pijuí frente gris/Sooty-fronted Spinetail22-4-17 © RAP

Pijuí frente gris/Sooty-fronted Spinetail22-4-17 © RAP
Checkered Woodpecker
Veniliornis mixtus
Carpintero bataraz chico/Checkered Woodpecker22-4-17 © Victoria Mansilla
Green-barred Woodpecker
Colaptes melanochloros
Carpintero real/Green-barred Woodpecker22-4-17 © RAP
Rufescent Tiger-Heron
Tigrisoma lineatum
Hocó colorado/Rufescent Tiger-Heron22-4-17 © Victoria Mansilla
Black-capped Warbling-Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling-Finch22-4-17 © RAP
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Sietevestidos/Black-and-rufous Warbling-Finch22-4-17 © Victoria Mansilla
Blue-and-white Swallow
Pygochelidon cyanoleuca
Golondr-barranq-RAP-22-4-1722-4-17 © RAP
Double-collared Seedeater
Sporophila caerulescens
Corbatita común/Double-collared Seedeater22-4-17 © RAP
Masked Gnatcatcher
Polioptila dumicola
Tacuarita azul/Masked Gnatcatcher22-4-17 © RAP

Insects and spiders
Katydid
Grammadera clara
Katydid
13-04-17 © Pablo Serur
Lubber Grasshopper
Zoniopoda tarsata
Lubber Grasshopper
13-04-17 © Pablo Serur
Treehopper
Enchenopa sp.
Treehopper
22-04-17 © Pablo Serur
Jumping spider
Cotinusa vittata
Jumping spider
02-04-17 © Sergio Cusano
Lady beetle
Cycloneda sanguinea
Lady beetle
02-04-17 © Nicolás Giorgio
Tortoise beetle
Stolas festiva
Tortoise beetle
14-04-17 © Nicolás Giorgio
Damselfly/Narrow-winged damselflies
Ischnura sp.
Damselfly/Narrow-winged damselflies
13-04-17 © Pablo Serur
Bumblebee
Bombus sp.
Bumblebee
02-04-17 © Carlos González Ledo
Camuati Wasp
Polybia scutellaris
Camuati Wasp
01-04-17 © Victoria Mansilla
Camuati Wasp
01-04-17 © Victoria Mansilla
Camuati Wasp
13-04-17 © Ricardo Palonsky
Brachygastra lecheguana
Brachygastra lecheguana
Brachygastra lecheguana
22-04-17 © Victoria Mansilla
Golden Silk Orbweaver
Trichonephila clavipes
Golden Silk Orbweaver
15-04-17 © J. Simón Tagtachian
Golden Silk Orbweaver
15-04-17 © Ricardo Palonsky
Dragonfly/Skimmers
Orthemis nodiplaga
Dragonfly/Skimmers
18-04-17 © J. Simón Tagtachian
New moth species:
Acharia sp.
Acharia sp13-4-17 © Ariel Méndez Zébé

Acharia sp13-4-17 © Ariel Méndez Zébé

Acharia sp13-4-17 © Ariel Méndez Zébé

Acharia sp13-4-17 © Pablo Serur
This colourful caterpillar belongs to the family Limacodidae. It is typical of this family to move like slugs, that is why the name. They secrete a semiliquid substance which enhances sliding on the substrate. Moths in this family may be very colourful like this one or of very modest colouring. The colourful ones are armed with itching spines or may be toxic or be unpallatable or the three together. Colours are very conspicuous and call the attention of predators but at the same time warn them not to predate on them. The ones wiith a modest colouration have no spines. Being cryptic, that is passing unnoticed is their best weapon.
Automeris naranja
Automeris naranja
automeris naranja PS 22-4-17_122-4-17 © Pablo Serur

Automeris naranja22-4-17 © Pablo Serur
These green spines are also stinging. Do not touch them since they inject an irritating substance.

Dysschema sacrifica
dysschema sacrifica NGG 18-4-17_418-4-17 © Nicolás Giorgio

dysschema sacrifica NGG 18-4-17_118-4-17 © Nicolás Giorgio

dysschema sacrifica NGG 18-4-17_318-4-17 © Nicolás Giorgio
We had the caterpillar. Now we add the adult
Female. Brown hindwings in the female and whitish ones in the male



Carolina Sphinx Moth
Manduca sexta
manduca sexta JST 18-3-1718-4-17 © J. Simón Tagtachian

manduca sexta JST 18-3-17_118-4-17 © J. Simón Tagtachian

Halysidota ruscheweyhi
halysidota PS 13-4-1713-4-17 © Pablo Serur



Spot-winged Pigeon
Patagioenas maculosa
Paloma manchada/Spot-winged Pigeon23-4-17 © Sergio Cusano
Straneck's Tyrannulet
Serpophaga griseicapilla
Piojito trinador/Straneck's Tyrannulet23-4-17 © Sergio Cusano
Recognized by its voice
Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant23-4-17 © Sergio Cusano
Great Grebe
Podiceps major
Macá grande/Great Grebe23-4-17 © Sergio Cusano
Rock Pigeon
Columba livia
Paloma doméstica/Rock Pigeon23-4-17 © Sergio Cusano
Golden-crowned Warbler
Basileuterus culicivorus
Arañero coronado chico/Golden-crowned Warbler23-4-17 © Sergio Cusano
Red-fronted Coot
Fulica rufifrons
Gallareta escudete rojo/Red-fronted Coot23-4-17 © Sergio Cusano
Southern Screamer-Cattle Tyrant
Chauna torquata - Machetornis rixosa
Chajá-picabuey/Screamer-Cattle Tyrant23-4-17 © Sergio Cusano
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero/Blue-and-yellow Tanager23-4-17 © Sergio Cusano
Shiny cowbird
Molothrus bonariensis
Tordo renegrido/Shiny cowbird23-4-17 © Sergio Cusano



Waterbirds in the gull Pond Acuáticas/Waterbirds18-4-17 © Nicolás Giorgio

Acuáticas/Waterbirds18-4-17 © Nicolás Giorgio

Acuáticas/Waterbirds18-4-17 © Nicolás Giorgio
Estas tres fotos muestran a lo lejos algunas de las especies que se encuentran en la Laguna de las Gaviotas
Among the waterbirds we can distinguish Coscoroba Swan, Red-fronted and Red-gartered Coots, Yellow-billed Teal, Silver Teal, Ringed Teal, Wattled Jacana, Common Gallinule and Black-necked Swan.



Butterflies
Cloudless Sulphur
Phoebis senna marcellina
Azufrada común/Cloudless Sulphur© Nicolás Giorgio
Syma Sister
Adelpha syma
Almirante menor/Syma Sister© Nicolás Giorgio
Arawacus ellida
Arawacus ellida
Élida/Arawacus ellida© Elsa y Guillermo
Arawacus ellida
Arawacus ellida
Élida/Arawacus ellida© Elsa y Guillermo
Russula Metalmark
Emessis russula
Acróbata rojiza/Russula Metalmark© Sergio Cusano
Russula Metalmark
Emessis russula
Acróbata rojiza/Russula Metalmark© Victoria Mansilla
Laurentia Emperor
Doxocopa laurentia
Zafiro/Laurentia Emperor© J. Simón Tagtachian
Laurentia Emperor
Doxocopa laurentia
Zafiro/Laurentia Emperor© RAP
Orcus Checkered Skipper
Pyrgus orcus
Ajedrezada común/Orcus Checkered Skipper© Victoria Mansilla
Argentine Checkered Skipper
Pyrgus orcynoides
Ajedrezada común/Argentina Checkered Skipper© Carlos Toledo
Argentine Checkered Skipper
Pyrgus orcynoides
Ajedrezada común/Argentina Checkered Skipper© Sergio Cusano
Argentine Checkered Skipper
Pyrgus orcynoides
Ajedrezada común/Argentina Checkered Skipper© Victoria Mansilla
Cassius blue
Leptotes cassius
Yuyera/Cassius blue© Elsa y Guillermo
Southamercian Lady
Vanessa braziliensis
Dama pintada/Southamercian Lady© Nicolás Giorgio
Chilean Lady
Vanessa carye
Dama manchada/Chilean Lady© Sergio Cusano
Chilean Lady
Vanessa carye
Dama manchada/Chilean Lady© J. Simón Tagtachian
Ithra Crescent
Ortilia ithra
Bataraza/Ithra Crescent© Carlos Toledo
Fiery Skipper
Hylephila phyleus
Saltarina amarilla/Fiery Skipper© Sergio Cusano
Common Yellow
Eurema deva
Limoncito común/Common Yellow© Nicolás Giorgio
Lyssipoides Metalmark
Riodina lyssipoides
Danzarina chica/Lyssipoides Metalmark© Nicolás Giorgio
Monarch
Danaus erippus
Monarca/Monarch© RAP
Monarch
Danaus erippus
Monarca/Monarch© Nicolás Giorgio
Monarch
Danaus erippus
Monarca/Monarch© Carlos Toledo
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Nicolás Giorgio
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Victoria Mansilla
Gulf Fritillary
Agraulis vanillae maculosa
Espejitos/Gulf Fritillary© Victoria Mansilla
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Victoria Mansilla
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Nicolás Giorgio
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Victoria Mansilla
Southern Buckeye
Junonia genoveva hilaris
Cuatro ojos común/Southern Buckeye© Sergio Cusano
Lesbia Sulphur
Colias lesbia
Isoca de la alfalfa/Lesbia Sulphur© Victoria Mansilla
Lesbia Sulphur
Colias lesbia
Isoca de la alfalfa/Lesbia Sulphur© Sergio Cusano
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© Nicolás Giorgio
Claudina Crescent
Tegosa claudina
Claudina/Claudina Crescent© Victoria Mansilla
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Sergio Cusano
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Carlos Toledo
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Sergio Cusano
Mexican Silverspot
Dione moneta
Moneta/Mexican Silverspot© Nicolás Giorgio



Burrowing Parakeet
Cyanoliseus patagonus
Loro barranquero/Burrowing Parakeet15-4-17 © J. Simón Tagtachian

Loro barranquero/Burrowing Parakeet15-4-17 © J. Simón Tagtachian

Loro barranquero/Burrowing Parakeet15-4-17 © J. Simón Tagtachian
Diademed tanager
Stephanophorus diadematus
Frutero azul/Diademed tanager15-4-17 © RAP
Freckle-breasted Thornbird
Phacellodomus striaticollis
Espinero pecho manchado/Freckle-breasted Thornbird15-4-17 © RAP
Peregrine Falcon
Falco peregrinus
Halcón peregrino/Peregrine Falcon15-4-17 © RAP
Halcón peregrino/Peregrine Falcon15-4-17 © J. Simón Tagtachian
Green Kingfisher
Chloroceryle americana
Martín pescador chico/Green Kingfisher

Martín pescador chico/Green Kingfisher15-4-17 © RAP
Martín pescador chico/Green Kingfisher15-4-17 © J. Simón Tagtachian
Vermilion flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion flycatcher15-4-17 © J. Simón Tagtachian
Variable Oriole
Icterus pyrrhopterus
Boyerito/Variable Oriole15-4-17 © RAP
Southern Screamer
Chauna torquata
Chajá/Southern Screamer15-4-17 © J. Simón Tagtachian
House Wren
Troglodytes aedon
Ratona común/House Wren15-4-17 © RAP
Green Kingfisher
Chloroceryle americana
Martín pescador chico/Green Kingfisher8-4-17 © J. Simón Tagtachian

Martín pescador chico/Green Kingfisher8-4-17 © J. Simón Tagtachian
American Kestrel
Falco sparverius
Halconcito colorado/American Kestrel8-4-17 © J. Simón Tagtachian

Halconcito colorado/American Kestrel8-4-17 © J. Simón Tagtachian

Halconcito colorado/American Kestrel8-4-17 © J. Simón Tagtachian
White-banded Mockingbird
Mimus triurus
Calandria real/White-banded Mockingbird8-4-17 © J. Simón Tagtachian
Kelp Gull
Larus dominicanus
Gaviota cocinera/Kelp Gull8-4-17 © J. Simón Tagtachian
Vermilion flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion flycatcher15-4-17 © J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero/Blue-and-yellow Tanager8-4-17 © J. Simón Tagtachian
Red-crested Cardinal
Paroaria coronata
Cardenal común/Red-crested Cardinal8-4-17 © J. Simón Tagtachian



Diademed tanager
Stephanophorus diadematus
Frutero azul/Diademed tanager15-4-17 © Javier González

Frutero azul/Diademed tanager15-4-17 © Javier González

Frutero azul/Diademed tanager15-4-17 © Javier González
Eran dos individuos
Dark-billed Cuckoo
Coccyzus melacoryphus
Cuclillo canela/Dark-billed Cuckoo15-4-17 © Juan Carlos Ferreyra
Vermilion Flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion Flycatcher15-4-17 © Juan Carlos Ferreyra
Churrinche/Vermilion Flycatcher15-4-17 © Javier González
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak15-4-17 © Juan Carlos Ferreyra
Reinamora grande/Ultramarine Grosbeak15-4-17 © Javier González
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager15-4-17 © Javier González
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager15-4-17 © Juan Carlos Ferreyra
Female Frutero negro/White-lined Tanager15-4-17 © Javier González
Male
Yellow-billed Cardinal
Paroaria capitata
Cardenilla/Yellow-billed Cardinal15-4-17 © Javier González
Saffron Finch
Sicalis flaveola
Jilguero dorado/Saffron Finch15-4-17 © Javier González



Dark-billed Cuckoo
Coccyzus melacoryphus
Cuclillo canela/Dark-billed Cuckoo13-4-17 © RAP

Cuclillo canela/Dark-billed Cuckoo13-4-17 © RAP

Cuclillo canela/Dark-billed Cuckoo13-4-17 © RAP
Vermilion flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion flycatcher

Churrinche/Vermilion flycatcher13-4-17 © RAP
Variable Oriole
Icterus pyrrhopterus
Boyerito/Variable Oriole13-4-17 © RAP

Boyerito/Variable Oriole13-4-17 © RAP
Black-necked Swan
Cygnus melacoryphus
Cisne cuello negro/Black-necked Swan13-4-17 © RAP
Fourteen all gathered in a photo
Masked Yellowthroat
Setophaga pitiayumi
Pitiayumí/Masked Yellowthroat13-4-17 © RAP
Double-collared Seedeater
Sporophila caerulescens
Corbatita común/Double-collared Seedeater13-4-17 © RAP
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak13-4-17 © RAP
Hooded Siskin
Spinus magellanicus
Cabecitanegra común/Hooded Siskin13-4-17 © RAP
Masked Gnatcatcher
Polioptila dumicola
Tacuarita azul/Masked Gnatcatcher13-4-17 © RAP
Gilded Sapphire
Hylocharis chrysura
Picaflor bronceado/Gilded Sapphire13-4-17 © RAP
Monk Parakeet
Myiopsitta monachus
Cotorra/Monk Parakeet13-4-17 © RAP
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan13-4-17 © RAP
Great Egret
Ardea alba
Garza blanca/Great Egret13-4-17 © RAP
Silver Teal
Anas versicolor
Pato capuchino/Silver Teal14-4-17 © Carlos González Ledo
In field guides this species is treated like a monomorphic one since there are no noticable characters which distinguish male from female. Anyway, female flanks are scale-like whereas the male's is an irregular barring. The rear third is finely barred in the male and wider in the female.
Pato capuchino/Silver Teal14-4-17 © Carlos González Ledo
Cocoi Heron
Ardea cocoi
Garza mora/Cocoi Heron14-4-17 © Carlos González Ledo
Garza mora/Cocoi Heron14-4-17 © Carlos González Ledo

Garza mora/Cocoi Heron14-4-17 © Carlos González Ledo
This heron harpooned almost 15 times with no luck, at best a motionless stick was caught and it was returned to water. I could not watch it feed during this time. Frustrating hunt. CGL
Great Grebe
Podiceps major
Macá grande/Great Grebe14-4-17 © Carlos González Ledo

Macá grande/Great Grebe14-4-17 © Carlos González Ledo
This grebe caught this plastic wrap - seemingly a mayonnaise sachet. Luckily, it did not swallow it.
White-tufted Grebe
Rollandia rolland
Macá común/White-tufted Grebe14-4-17 © Carlos González Ledo



Guira cuckoo
Guira guira
Pirincho Guira cuckoo13-4-17 © Gustavo F. Brahamian
Chalk-browed Mockingbird
Mimus saturninus
Calandria grande/Chalk-browed Mockingbird13-4-17 © Gustavo F. Brahamian

Dusky-legged Guan
Penelope obscura
14-04-17 © José Francisco

Duck and Gull Ponds
Cisnes en Gaviotas/Swans in Gull Pond5-4-17 © Eduardo Ibarra

Gaviotas/Gull Pond5-4-17 © Eduardo Ibarra

Gaviotas/Gull Pond5-4-17 © Eduardo Ibarra
Muchísima vida en la Laguna de las Gaviotas. Gran cantidad de gallaretas y pollonas indistinguibles a la distancia, jacanas, teros, caranchos -una multitud. La foto con puntos muestra 11 cisnes, aunque se llegaron a contar 25. El piso verde que parece un hermoso césped desde el camino, por lo que se aprecia es vegetación flotante. ¿Cuánto de agua habrá?
Patos/Duck Pond

Patos/Duck Pond

Patos/Duck Pond
The cattail survived longer in the Duck Pond than in the Gull Pond. A strange situation since the Duck Pond was deeper than the Gull Pond. Since almost a month ago the cattail has notoriously decayed exposing some water mirrors. As for birds we must say it is still almost deserted. There are a few coots, gallinules, jacanas and a pair of coscoroba and a lot of coypus.
The most intense hot days have gone. Let's see how this pond evolves.
Roadside Hawk
Rupornis magnirostris
Taguató común/Roadside Hawk8-4-17 © RAP

Taguató común/Roadside Hawk8-4-17 © Carlos Toledo
White-crested Tyrannulet
Serpophaga subcristata
Piojito común/White-crested Tyrannulet8-4-17 © RAP
Cattle Tyrant
Machetornis rixosa
Picabuey/Cattle Tyrant8-4-17 © RAP
White-faced Whistling-Duck
Dendrocygna viduata
Sirirí pampa/White-faced Whistling-Duck8-4-17 © Carlos Toledo
Brazilian Teal
Amazonetta brasiliensis
Pato cutirí/Brazilian TEal8-4-17 © RAP
The fourth from left to right is a female. The speculum may be gree or blue according to light.
Neotropic Cormorant
Neotropic Cormorant
Biguá/Neotropic Cormorant8-4-17 © Carlos Toledo
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager8-4-17 © RAP
Red-crested Cardinal
Paroaria coronata
Cardenal común/Red-crested Cardinal8-4-17 © RAP
Chalk-browed Mockingbird
Mimus saturninus
Calandria grande/Chalk-browed Mockingbird8-4-17 © RAP
Green Kingfisher
Chloroceryle americana
Martín pescador chico/Green Kingfisher8-4-17 © Pablo Serur

Martín pescador chico/Green Kingfisher8-4-17 © Pablo Serur

Martín pescador chico/Green Kingfisher8-4-17 © Pablo Serur

Martín pescador chico/Green Kingfisher8-4-17 © Pablo Serur
In the same water tank this female, most certainly the same Javier saw some days ago, En el mismo tanque esta hembra, enjoyed eating insects. One of them seems to be a cicada
Ultramarine Grosbeak
Cyanocompsa brissonii
Reinamora grande/Ultramarine Grosbeak8-4-17 © Elsa y Guillermo
Greyish Saltator
Saltator coerulescens
Pepitero gris/Greyish Saltator8-4-17 © Sergio Cusano
Gilded Sapphire
Hylocharis chrysura
Picaflor bronceado/Gilded Sapphire8-4-17 © Sergio Cusano
Checkered Woodpecker
Veniliornis mixtus
Carpintero bataraz chico/Checkered Woodpecker8-4-17 © Elsa y Guillermo
Southern Caracara
Caracara plancus
Carancho/Southern Caracara8-4-17 © Elsa y Guillermo
Eating remnants of a coypu
Wattled Jacana
Jacana jacana
Jacana/Wattled Jacana8-4-17 © Sergio Cusano
Nenday Parakeet
Aratinga nenday
Ñanday/Nenday Parakeet

Ñanday/Nenday Parakeet8-4-17 © Sergio Cusano
Eating giant reeda
Arundo donax
New moth:
Cyanopepla orbona
Cyanopepla orbona8-4-17 © Pablo Serur
It belongs to the family Erebidae, Subfamily Arctiinae
New moth:
Stylura forficula
Stylura forficula19-3-17 © Ezequiel Núñez Bustos
Strange moth which belong to the family Zyganenidae, subfamily Procridinae
Mating of Mallard Duck
Ánade-pekin/Mallard-Pekin Ducks14-3-17 © Nicolás Giorgio Ánade-pekin/Mallard-Pekin Ducks14-3-17 © Nicolás Giorgio
Ánade-pekin/Mallard-Pekin Ducks19-3-17 © Carlos González Ledo Ánade-pekin/Mallard-Pekin Ducks19-3-17 © Carlos González Ledo
Read about mating in ducks
Maguari Stork
Ciconia maguari
Cigüeña/Maguari Stork4-4-17 © RAP

Cigüeña/Maguari Stork4-4-17 © RAP

Cigüeña/Maguari Stork4-4-17 © RAP
Vermilion flycatcher
Pyrocephalus rubinus
Churrinche/Vermilion flycatcher4-4-17 © RAP
Harris's Hawk
Parabuteo unicinctus
Gavilán mixto/Harris's Hawkv

Gavilán mixto/Harris's Hawk4-4-17 © RAP

Gavilán mixto/Harris's Hawkv
Three different plumages
Gavilán mixto/Harris's Hawk4-4-17 © RAP

Gavilán mixto/Harris's Hawk4-4-17 © RAP
White-winged Becard
Pachyramphus polychopterus
Anambé común/White-winged Becard4-4-17 © RAP
Small-billed Elaenia
Elaenia parvirostris
Fiofío pico corto/Small-billed Elaenia4-4-17 © RAP
Variable Oriole
Icterus pyrrhopterus
Boyerito/Variable Oriole

Boyerito/Variable Oriole4-4-17 © RAP
Southern Caracara
Caracara plancus
Carancho/Southern Caracara4-4-17 © RAP
8 individuals together. Just a minute sample of the many there are.
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager4-4-17 © RAP
Creamy-bellied Thrush
Turdus amaurochalinus
Zorzal chalchalero/Creamy-bellied Thrush4-4-17 © RAP
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard

Pato picazo/Rosy-billed Pochard4-4-17 © RAP



Yellow-browed Tyrant
Satrapa icterophrys
Suirirí amarillo/Yellow-browed Tyrant4-4-17 © Nicolás Giorgio
Coscoroba Swan
Coscoroba coscoroba
Coscoroba/Coscoroba Swan4-4-17 © Nicolás Giorgio
En Coipos
Roseate Spoonbill
Platalea ajaja
Espátula rosada/Roseate Spoonbill4-4-17 © Nicolás Giorgio
Greyish Saltator
Saltator coerulescens
Pepitero gris/Greyish Saltator4-4-17 © Nicolás Giorgio
Yellow-billed Teal
Anas flavirostris
Pato barcino/Yellow-billed Teal

Pato barcino/Yellow-billed Teal

Pato barcino/Yellow-billed Teal

Pato barcino/Yellow-billed Teal2-4-17 © Carlos González Ledo
I could see the previous displays inviting to copulate which are so typical of swans and ducks-both male and female pecking at water once and again till the female stretches on the water for copulation. Also the common sinking of the female's head taking her by the neck.
Brazilian Teal
Amazonetta brasiliensis
Pato cutirí/Brazilian Teal2-4-17 © Carlos González Ledo
It is striking how the number of ducks fluctuate in Coypu Pond. One week too many Rosy-billed Pochards, another Yellow-billed Teals and now Brazilian Teals
Harris's Hawk
Parabuteo unicinctus
Gavilán mxito/Harris's Hawk2-4-17 © Carlos González Ledo
Great Kiskadee
Pitangus sulphuratus
Benteveo común/Great Kiskadee2-4-17 © Carlos González Ledo
Red-and-white Crake
Laterallus leucopyrrhus
Burrito colorado/Red-and-white Crake2-4-17 © Javier González
Green kingfisher
Chloroceryle americana
Martín pescador chico/Green kingfisher2-4-17 © Javier González
Black-necked Swan
Cygnus melacoryphus
Cisne cuello negro/Black-necked Swan2-4-17 © Javier González
In Coypu Pond
White-lined Tanager
Tachyphonus rufus
Frutero negro/White-lined Tanager2-4-17 © Javier González
Black-capped Warbling-Finch
Poospiza melanoleuca
Monterita cabeza negra/Black-capped Warbling-Finch2-4-17 © Javier González
Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
Chinchero chico/Narrow-billed Woodcreeper2-4-17 © Javier González
Blue-and-yellow Tanager
Pipraeidea bonariensis
Naranjero/Blue-and-yellow Tanager2-4-17 © Javier González
Yellow-chevroned Parakeet
Brotogeris chiriri
Catita chirirí/Yellow-chevroned Parakeet

Catita chirirí/Yellow-chevroned Parakeet1-4-17 © Sergio Cusano
Catita chirirí/Yellow-chevroned Parakeet1-4-17 © RAP
Catita chirirí/Yellow-chevroned Parakeet1-4-17 © Victoria Mansilla
Peregrine Falcon
Falco peregrinus
Halcón peregrino/Peregrine Falcon1-4-17 © RAP
It was seen early in the morning (top) and when leaving (below) Halcón peregrino/Peregrine Falcon1-4-17 © RAP

Halcón peregrino/Peregrine Falcon1-4-17 © Sergio Cusano

Halcón peregrino/Peregrine Falcon1-4-17 © Elsa y Guillermo
Roseate Spoonbill
Platalea ajaja
Espáutla rosada/Roseate Spoonbill1-4-17 © RAP
Espáutla rosada/Roseate Spoonbill1-4-17 © RAP
The Roseate Spoonbills past flying in V formation Espátula - gracita/Spoonbill - egret1-4-17 © Sergio Cusano
A Roseta Spoonbill gain in Coypu Pond. At dusk with a Snowy Egret
Black-necked Swan
Cygnus melacoryphus
Cisne cuello negro/Black-necked Swan1-4-17 © Sergio Cusano
25 indiviudals were counted
Southern Caracara
Caracara plancus
Carancho/Southern Caracarav

Carancho/Southern Caracara1-4-17 © RAP
Muchos caranchos revoloteando por la costa en Viamonte, volando en círculo, persiguiéndose, peleando. Habá jóvenes y adultos. Nos acercamos a la costa para ver qué pasaba, pero no encontramos nada. Dentro 8 sobre nuestras cabezas. Carancho/Southern Caracara1-4-17 © RAP
Harris's Hawk
Parabuteo unicinctus
Gavilán mixto/Harris's Hawk1-4-17 © Guillermo Morelli
Sayaca Tanager
Thraupis sayaca
Celestino/Sayaca Tanager1-4-17 © Sergio Cusano
Celestino/Sayaca Tanager1-4-17 © RAP
A juvenile eating the bugweed fruit
Solanum granulosum leprosum
Small-billed Elaenia
Elaenia parvirostris
Fiofío pico corto/Small-billed Elaenia1-4-17 © RAP
Rosy-billed Pochard
Netta peposaca
Pato picazo/Rosy-billed Pochard

Pato picazo/Rosy-billed Pochard1-4-17 © Victoria Mansilla
Spectacled Tyrant
Hymenops perspicillatus
Pico de plata/Spectacled Tyrant1-4-17 © RAP
Cocoi Heron
ARdea cocoi
Garza mora/Cocoi Heron1-4-17 © Victoria Mansilla
Cattle Tyrant
Machetornis rixosa
Picabuey/Cattle Tyrant1-4-17 © RAP
Rufous Hornero
Furnarius rufus
Hornero/Rufous Hornero1-4-17 © Guillermo Morelli
Pied-billed Grebe
Podilymbus podiceps
<Macá pico grueso/Pied-billed Grebe1-4-17 © Elsa y Guillermo
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Sietevestidos/Black-and-rufous Warbling-Finch1-4-17 © Sergio Cusano
Sietevestidos/Black-and-rufous Warbling-Finch1-4-17 © Victoria Mansilla
Golden-billed Saltator
Saltator auranntiirostris
Pepitero de collar/Golden-billed Saltator1-4-17 © Victoria Mansilla
Eating
Phoenix canariensis fruit
Eared Dove
Zenaida auriculata
Torcaza común/Eared Dove1-4-17 © Victoria Mansilla