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
Mourning Sierra-Finch
29-04-17 © Adriana Silva

Another winter visitor besides the dark-faced ground-tyrant and buff-winged cinclodes

Maguari Stork
Ciconia maguari
Maguari Stork
26-04-17 © Eduardo Ibarra
Red-and-white Crake
Laterallus leucopyrrhus
Red-and-white Crake
29-04-17 © Ricardo Palonsky
Red-and-white Crake
29-04-17 © Ricardo Palonsky
Sooty Tyrannulet
Serpophaga nigricans
Sooty Tyrannulet
29-04-17 © Ricardo Palonsky
Sooty Tyrannulet
29-04-17 © Ricardo Palonsky
Wren-like Rushbird
Phleocryptes melanops
Wren-like Rushbird
29-04-17 © Ricardo Palonsky
Wren-like Rushbird
29-04-17 © Ricardo Palonsky
Green-winged Saltator
Saltator similis
Green-winged Saltator
29-04-17 © Ricardo Palonsky
Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
29-04-17 © Ricardo Palonsky
Ultramarine Grosbeak
29-04-17 © Ricardo Palonsky
Yellow-browed Tyrant
Satrapa icterophrys
Yellow-browed Tyrant
29-04-17 © Ricardo Palonsky
Cocoi Heron
Ardea cocoi
Cocoi Heron
29-04-17 © Ricardo Palonsky
Cocoi Heron
29-04-17 © Ricardo Palonsky
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
29-04-17 © Ricardo Palonsky
Green-barred Woodpecker
Colaptes melanochloros
Green-barred Woodpecker
29-04-17 © Ricardo Palonsky
Cattle Tyrant
Machetornis rixosa
Cattle Tyrant
29-04-17 © Ricardo Palonsky
Rufous-bellied Thrush
Turdus rufiventris
Rufous-bellied Thrush
29-04-17 © Ricardo Palonsky

Dark-faced Ground-Tyrant
Muscisaxicola maclovianus
Dark-faced Ground-Tyrant
29-04-17 © María Victoria Di Stasio

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 Adrián saw something moving far on the shore. It was no more and no less the dark-faced ground-tyrant.

Dark-faced Ground-Tyrant
29-04-17 © María Victoria Di Stasio

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 Adrián saw something moving far on the shore. It was no more and no less the dark-faced ground-tyrant.

29-04-17 © 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 Adrián saw something moving far on the shore. It was no more and no less the dark-faced ground-tyrant.

Buff-winged Cinclodes
Cinclodes fuscus
Buff-winged Cinclodes
29-04-17 © Javier Guillermo González
Buff-winged Cinclodes
29-04-17 © Javier Guillermo González
Sooty Tyrannulet
Serpophaga nigricans
Sooty Tyrannulet
29-04-17 © Javier Guillermo González
Sooty Tyrannulet
29-04-17 © Javier Guillermo González
Roseate Spoonbill
Platalea ajaja
29-04-17 © Cora Rimoldi

Feeding at the Coypu Pond. Carlos Agulian told us he had seen five roseate spoonbills from the outer sidewalk. We could see only this one. The rest were behind the island. Some time later we saw the five individuals flying.

Wood Stork
Mycteria americana
Wood Stork
29-04-17 © Javier Guillermo González
Wood Stork
29-04-17 © J. Simón Tagtachian
Snail Kite
Rostrhamus sociabilis
Snail Kite
29-04-17 © Javier Guillermo González
Snail Kite
29-04-17 © Javier Guillermo González
Snail Kite
29-04-17 © J. Simón Tagtachian
Snail Kite
29-04-17 © J. Simón Tagtachian
Snail Kite
29-04-17 © J. Simón Tagtachian
Rufous Hornero
Furnarius rufus
Rufous Hornero
29-04-17 © J. Simón Tagtachian
Rufous Hornero
29-04-17 © J. Simón Tagtachian
Whistling Heron
Syrigma sibilatrix
Whistling Heron
29-04-17 © J. Simón Tagtachian
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
29-04-17 © J. Simón Tagtachian

Roadside Hawk
Rupornis magnirostris
Roadside Hawk
25-04-17 © J. Simón Tagtachian
Great Kiskadee
Pitangus sulphuratus
Great Kiskadee
25-04-17 © J. Simón Tagtachian
Hooded Siskin
Spinus magellanicus
Hooded Siskin
25-04-17 © J. Simón Tagtachian

Eating seeds of wild teasel Dispsacus fullonum

Kelp Gull
Larus dominicanus
Kelp Gull
22-04-17 © Carlos Alberto Toledo
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
22-04-17 © Carlos Alberto Toledo
Sooty-fronted Spinetail
Synallaxis frontalis
Sooty-fronted Spinetail
22-04-17 © Carlos Alberto Toledo
Black-capped Warbling-Finch
Poospiza melanoleuca
Black-capped Warbling-Finch
22-04-17 © Carlos Alberto Toledo
Spix's Spinetail
Synallaxis spixi
Spix's Spinetail
26-04-14 © Elsa y Guillermo Marcaida
RAP managed to 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

Displays of Rufescent Tiger-Heron
Displays of Rufescent Tiger-Heron
Displays of a rufescent tiger-heron
Read more

Southern caracara
Caracara plancus
Feeding order
Feeding order
Who feeds first
Read more




Green Kingfisher
Chloroceryle americana
Green Kingfisher
22-04-17 © Ricardo Palonsky
Sooty-fronted Spinetail
Synallaxis frontalis
Sooty-fronted Spinetail
22-04-17 © Ricardo Palonsky
Sooty-fronted Spinetail
22-04-17 © Ricardo Palonsky
Checkered Woodpecker
Veniliornis mixtus
Checkered Woodpecker
22-04-17 © Victoria Mansilla
Green-barred Woodpecker
Colaptes melanochloros
Green-barred Woodpecker
22-04-17 © Victoria Mansilla
Black-capped Warbling-Finch
Poospiza melanoleuca
Black-capped Warbling-Finch
22-04-17 © Ricardo Palonsky
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Black-and-rufous Warbling-Finch
22-04-17 © Victoria Mansilla
Blue-and-white Swallow
Pygochelidon cyanoleuca
Blue-and-white Swallow
22-04-17 © Ricardo Palonsky
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
22-04-17 © Ricardo Palonsky
Masked Gnatcatcher
Polioptila dumicola
Masked Gnatcatcher
22-04-17 © Ricardo Palonsky



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
Spot-winged Pigeon
23-04-17 © Sergio Cusano
Straneck's Tyrannulet
Serpophaga griseicapilla
Straneck's Tyrannulet
23-04-17 © Sergio Cusano
Yellow-browed Tyrant
Satrapa icterophrys
Yellow-browed Tyrant
23-04-17 © Sergio Cusano
Great Grebe
Podiceps major
Great Grebe
23-04-17 © Sergio Cusano
Rock Pigeon
Columba livia
Rock Pigeon
23-04-17 © Sergio Cusano
Golden-crowned Warbler
Basileuterus culicivorus
Golden-crowned Warbler
23-04-17 © Sergio Cusano
Red-fronted Coot
Fulica rufifrons
Red-fronted Coot
23-04-17 © Sergio Cusano
Southern Screamer
Chauna torquata
Southern Screamer
23-04-17 © Sergio Cusano
Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
23-04-17 © Sergio Cusano
Shiny Cowbird
Molothrus bonariensis
Shiny Cowbird
23-04-17 © Sergio Cusano



Waterbirds in the Gull Pond
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
18-04-17 © Nicolás Giorgio
Coscoroba Swan
18-04-17 © Nicolás Giorgio
These photos show some species which are found very far in the Gull Pond.
Besides the black-necked swans (above photo) there are coscoroba swan, yellow-billed teal, silver teal, wattled jacana, common gallinule, and coot

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
Burrowing Parakeet
15-04-17 © J. Simón Tagtachian
Burrowing Parakeet
15-04-17 © J. Simón Tagtachian
Burrowing Parakeet
15-04-17 © J. Simón Tagtachian
Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
15-04-17 © Ricardo Palonsky
Freckle-breasted Thornbird
Phacellodomus striaticollis
Freckle-breasted Thornbird
15-04-17 © Ricardo Palonsky
Peregrine Falcon
Falco peregrinus
Peregrine Falcon
15-04-17 © Ricardo Palonsky
Peregrine Falcon
15-04-17 © J. Simón Tagtachian
Green Kingfisher
Chloroceryle americana
Green Kingfisher
15-04-17 © Ricardo Palonsky
Green Kingfisher
15-04-17 © Ricardo Palonsky
Green Kingfisher
15-04-17 © J. Simón Tagtachian
Vermilion Flycatcher
Pyrocephalus rubinus
Vermilion Flycatcher
15-04-17 © J. Simón Tagtachian
Variable Oriole
Icterus pyrrhopterus
Variable Oriole
15-04-17 © Ricardo Palonsky
Southern Screamer
Chauna torquata
Southern Screamer
15-04-17 © J. Simón Tagtachian
House Wren
Troglodytes aedon
House Wren
15-04-17 © Ricardo Palonsky

Green Kingfisher
Chloroceryle americana
Green Kingfisher
08-04-17 © J. Simón Tagtachian
Green Kingfisher
08-04-17 © J. Simón Tagtachian
American Kestrel
Falco sparverius
American Kestrel
08-04-17 © J. Simón Tagtachian
American Kestrel
08-04-17 © J. Simón Tagtachian
American Kestrel
08-04-17 © J. Simón Tagtachian
White-banded Mockingbird
Mimus triurus
White-banded Mockingbird
08-04-17 © J. Simón Tagtachian
Kelp Gull
Larus dominicanus
Kelp Gull
08-04-17 © J. Simón Tagtachian
Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
08-04-17 © J. Simón Tagtachian
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
08-04-17 © J. Simón Tagtachian

Diademed Tanager
Stephanophorus diadematus
Diademed Tanager
15-04-17 © Javier Guillermo González
Diademed Tanager
15-04-17 © Javier Guillermo González
Diademed Tanager
15-04-17 © Javier Guillermo González
Dark-billed Cuckoo
Coccyzus melacoryphus
Dark-billed Cuckoo
15-04-17 © Juan Carlos Ferreyra
Vermilion Flycatcher
Pyrocephalus rubinus
Vermilion Flycatcher
15-04-17 © Juan Carlos Ferreyra
Vermilion Flycatcher
15-04-17 © Javier Guillermo González
Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
15-04-17 © Juan Carlos Ferreyra
Ultramarine Grosbeak
15-04-17 © Javier Guillermo González
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
15-04-17 © Javier Guillermo González
White-lined Tanager
Tachyphonus rufus
White-lined Tanager
15-04-17 © Juan Carlos Ferreyra
White-lined Tanager
15-04-17 © Javier Guillermo González
Yellow-billed Cardinal
Paroaria capitata
Yellow-billed Cardinal
15-04-17 © Javier Guillermo González
Saffron Finch
Sicalis flaveola
Saffron Finch
15-04-17 © Javier Guillermo González



Dark-billed Cuckoo
Coccyzus melacoryphus
Dark-billed Cuckoo
13-04-17 © Ricardo Palonsky
Dark-billed Cuckoo
13-04-17 © Ricardo Palonsky
Dark-billed Cuckoo
13-04-17 © Ricardo Palonsky
Vermilion Flycatcher
Pyrocephalus rubinus
Vermilion Flycatcher
13-04-17 © Ricardo Palonsky
Vermilion Flycatcher
13-04-17 © Ricardo Palonsky
Variable Oriole
Icterus pyrrhopterus
Variable Oriole
13-04-17 © Ricardo Palonsky
Variable Oriole
13-04-17 © Ricardo Palonsky
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
13-04-17 © Ricardo Palonsky

Fourteen gathered in a photo

Tropical Parula
Setophaga pitiayumi
Tropical Parula
13-04-17 © Ricardo Palonsky
Double-collared Seedeater
Sporophila caerulescens
Double-collared Seedeater
13-04-17 © Ricardo Palonsky
Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
13-04-17 © Ricardo Palonsky
Hooded Siskin
Spinus magellanicus
Hooded Siskin
13-04-17 © Ricardo Palonsky
Masked Gnatcatcher
Polioptila dumicola
Masked Gnatcatcher
13-04-17 © Ricardo Palonsky
Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
13-04-17 © Ricardo Palonsky
Monk Parakeet
Myiopsitta monachus
Monk Parakeet
13-04-17 © Ricardo Palonsky

Eating flower of Tessaria integrifolia

Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
13-04-17 © Ricardo Palonsky
Great Egret
Ardea alba
Great Egret
13-04-17 © Ricardo Palonsky

Female and male silver teals

Silver Teal
14-04-17 © Carlos González Ledo

n field guides this species is treated like a monomorphic one since there are no noticeable characters which distinguish male from female. Anyway, female flanks are scale-like whereas the male's have an irregular barring. The rear third is finely barred in the male and wider in the female.

Female above, male below
Silver Teal
14-04-17 © Carlos González Ledo



Cocoi Heron
Ardea cocoi
Cocoi Heron
14-04-17 © Carlos González Ledo
Cocoi Heron
14-04-17 © Carlos González Ledo
Cocoi Heron
14-04-17 © Carlos González Ledo

Carlos tells us that "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."

Great Grebe
Podiceps major
Great Grebe
14-04-17 © Carlos González Ledo
Great Grebe
14-04-17 © Carlos González Ledo

This grebe caught this plastic sachet (it seems a mayonnaise sachet). Luckily it did not eat it

White-tufted Grebe
Rollandia rolland
White-tufted Grebe
14-04-17 © Carlos González Ledo

Guira Cuckoo
Guira guira
Guira Cuckoo
13-04-17 © Gustavo F. Brahamian
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
13-04-17 © 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
Roadside Hawk
08-04-17 © Ricardo Palonsky
Roadside Hawk
08-04-17 © Carlos Alberto Toledo
White-crested Tyrannulet
Serpophaga subcristata
White-crested Tyrannulet
08-04-17 © Ricardo Palonsky
Cattle Tyrant
Machetornis rixosa
Cattle Tyrant
08-04-17 © Ricardo Palonsky
White-faced Whistling-Duck
Dendrocygna viduata
White-faced Whistling-Duck
08-04-17 © Carlos Alberto Toledo
Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
08-04-17 © Ricardo Palonsky
Neotropic Cormorant
Phalacrocorax brasilianus
Neotropic Cormorant
08-04-17 © Carlos Alberto Toledo
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
08-04-17 © Ricardo Palonsky
Red-crested Cardinal
Paroaria coronata
Red-crested Cardinal
08-04-17 © Ricardo Palonsky
Chalk-browed Mockingbird
Mimus saturninus
Chalk-browed Mockingbird
08-04-17 © Ricardo Palonsky

Green Kingfisher
Chloroceryle americana
Green Kingfisher
08-04-17 © Pablo Serur
Green Kingfisher
08-04-17 © Pablo Serur
Green Kingfisher
08-04-17 © Pablo Serur
Green Kingfisher
08-04-17 © Pablo Serur

Presumably the same female Javier saw a couple of days ago was eating insects in the water tank. One seems a cicada

Ultramarine Grosbeak
Cyanoloxia brissonii
Ultramarine Grosbeak
08-04-17 © Elsa y Guillermo Marcaida
Grayish Saltator
Saltator coerulescens
Grayish Saltator
08-04-17 © Sergio Cusano
Gilded Hummingbird
Hylocharis chrysura
Gilded Hummingbird
08-04-17 © Sergio Cusano
Checkered Woodpecker
Veniliornis mixtus
Checkered Woodpecker
08-04-17 © Elsa y Guillermo Marcaida
Southern Caracara
Caracara plancus
Southern Caracara
08-04-17 © Elsa y Guillermo Marcaida

Eating somehting which must be a coypu 

Wattled Jacana
Jacana jacana
Wattled Jacana
08-04-17 © Sergio Cusano
Nenday Parakeet
Aratinga nenday
Nenday Parakeet
08-04-17 © Sergio Cusano
Nenday Parakeet
08-04-17 © Sergio Cusano

Eating giant cane 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



Mallard duck mating

Mallard Duck
Anas platyrhynchos
Mallard Duck
17-03-17 © Nicolás Giorgio
Mallard Duck
17-03-17 © Nicolás Giorgio
Mallard Duck
19-03-17 © Carlos González Ledo
Mallard Duck
19-03-17 © Carlos González Ledo

Maguari Stork
Ciconia maguari
Maguari Stork
04-04-17 © Ricardo Palonsky
Maguari Stork
04-04-17 © Ricardo Palonsky
Maguari Stork
04-04-17 © Ricardo Palonsky

A caracara on the wing

Vermilion Flycatcher
Pyrocephalus rubinus
Vermilion Flycatcher
04-04-17 © Ricardo Palonsky
Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
04-04-17 © Ricardo Palonsky
Harris's Hawk
04-04-17 © Ricardo Palonsky
Harris's Hawk
04-04-17 © Ricardo Palonsky
Harris's Hawk
04-04-17 © Ricardo Palonsky
Harris's Hawk
04-04-17 © Ricardo Palonsky
White-winged Becard
Pachyramphus polychopterus
White-winged Becard
04-04-17 © Ricardo Palonsky
Small-billed Elaenia
Elaenia parvirostris
Small-billed Elaenia
04-04-17 © Ricardo Palonsky
Variable Oriole
Icterus pyrrhopterus
Variable Oriole
04-04-17 © Ricardo Palonsky
Variable Oriole
04-04-17 © Ricardo Palonsky
Southern Caracara
Caracara plancus
Southern Caracara
04-04-17 © Ricardo Palonsky
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
04-04-17 © Ricardo Palonsky

Eating fruit of Muehlenbeckia sagittifolia

Creamy-bellied Thrush
Turdus amaurochalinus
Creamy-bellied Thrush
04-04-17 © Ricardo Palonsky
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
04-04-17 © Ricardo Palonsky
Rosy-billed Pochard
04-04-17 © Ricardo Palonsky

Yellow-browed Tyrant
Satrapa icterophrys
Yellow-browed Tyrant
04-04-17 © Nicolás Giorgio
Coscoroba Swan
Coscoroba coscoroba
Coscoroba Swan
04-04-17 © Nicolás Giorgio
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
04-04-17 © Nicolás Giorgio
Grayish Saltator
Saltator coerulescens
Grayish Saltator
04-04-17 © Nicolás Giorgio

Yellow-billed teal mating
Yellow-billed Teal
Anas flavirostris
Yellow-billed Teal
02-04-17 © Carlos González Ledo
Yellow-billed Teal
02-04-17 © Carlos González Ledo
Yellow-billed Teal
02-04-17 © Carlos González Ledo
Yellow-billed Teal
02-04-17 © Carlos González Ledo
Carlos could watch the displays previous to mating which are so typical of swans and ducks. Both peck at water once and again till the female stretches on the water for the male to copulate. Also sinking the female's head by taking her by the neck with the bill.

Brazilian Teal
Amazonetta brasiliensis
Brazilian Teal
02-04-17 © Carlos González Ledo

It is remarkable how the number of individuals fluctuate in the Coypu Pond. One week lots of rosy-billed pochards, another yellow-billed teals and now Brazilian teals

Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
02-04-17 © Carlos González Ledo
Great Kiskadee
Pitangus sulphuratus
Great Kiskadee
02-04-17 © Carlos González Ledo
Red-and-white Crake
Laterallus leucopyrrhus
Red-and-white Crake
02-04-17 © Javier Guillermo González
Green Kingfisher
Chloroceryle americana
Green Kingfisher
02-04-17 © Javier Guillermo González
Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
02-04-17 © Javier Guillermo González
White-lined Tanager
Tachyphonus rufus
White-lined Tanager
02-04-17 © Javier Guillermo González
Black-capped Warbling-Finch
Poospiza melanoleuca
Black-capped Warbling-Finch
02-04-17 © Javier Guillermo González
Narrow-billed Woodcreeper
Lepidocolaptes angustirostris
Narrow-billed Woodcreeper
02-04-17 © Javier Guillermo González
Blue-and-yellow Tanager
Pipraeidea bonariensis
Blue-and-yellow Tanager
02-04-17 © Javier Guillermo González

Male with a fruit of bugweed Solanum ganulosum-leprosum


Yellow-chevroned Parakeet
Brotogeris chiriri
Yellow-chevroned Parakeet
01-04-17 © Sergio Cusano
Yellow-chevroned Parakeet
01-04-17 © Sergio Cusano
Yellow-chevroned Parakeet
01-04-17 © Ricardo Palonsky
Yellow-chevroned Parakeet
01-04-17 © Victoria Mansilla
Peregrine Falcon
Falco peregrinus
Peregrine Falcon
01-04-17 © Ricardo Palonsky
Peregrine Falcon
01-04-17 © Ricardo Palonsky
Peregrine Falcon
01-04-17 © Sergio Cusano
Peregrine Falcon
01-04-17 © Elsa y Guillermo Marcaida
Roseate Spoonbill
Platalea ajaja
Roseate Spoonbill
01-04-17 © Ricardo Palonsky
Roseate Spoonbill
01-04-17 © Ricardo Palonsky

The roseate spoonbills of the morning flew in formation

Roseate Spoonbill
01-04-17 © Sergio Cusano

Again a roseate spoonbill in the Coypu Pond. In the afternoon the juvenile, with a snowy egret

Black-necked Swan
Cygnus melancoryphus
Black-necked Swan
01-04-17 © Sergio Cusano

25 individuals were counted in the Gull Pond

Southern Caracara
Caracara plancus
Southern Caracara
01-04-17 © Ricardo Palonsky
Southern Caracara
01-04-17 © Ricardo Palonsky
Southern Caracara
01-04-17 © Ricardo Palonsky

Too many caracaras flying over the coast at the Viamonte end, cicling in the sky, chasing, fighting. There were juveniles and adults. We approached the coast to see what was happening but we found nothing. Here eight individuals were above our heads

Harris's Hawk
Parabuteo unicinctus
Harris's Hawk
01-04-17 © Guillermo Morelli
Sayaca Tanager
Thraupis sayaca
Sayaca Tanager
01-04-17 © Sergio Cusano
Sayaca Tanager
01-04-17 © Ricardo Palonsky

Juvenile eating fruit of bugweed Solanum granulosum-leprosum

Small-billed Elaenia
Elaenia parvirostris
Small-billed Elaenia
01-04-17 © Ricardo Palonsky
Rosy-billed Pochard
Netta peposaca
Rosy-billed Pochard
01-04-17 © Victoria Mansilla
Rosy-billed Pochard
01-04-17 © Victoria Mansilla
Spectacled Tyrant
Hymenops perspicillatus
Spectacled Tyrant
01-04-17 © Ricardo Palonsky
Cocoi Heron
Ardea cocoi
Cocoi Heron
01-04-17 © Victoria Mansilla
Cattle Tyrant
Machetornis rixosa
Cattle Tyrant
01-04-17 © Ricardo Palonsky
Rufous Hornero
Furnarius rufus
Rufous Hornero
01-04-17 © Guillermo Morelli
Pied-billed Grebe
Podilymbus podiceps
Pied-billed Grebe
01-04-17 © Elsa y Guillermo Marcaida
Black-and-rufous Warbling-Finch
Poospiza nigrorufa
Black-and-rufous Warbling-Finch
01-04-17 © Sergio Cusano
Black-and-rufous Warbling-Finch
01-04-17 © Victoria Mansilla
Golden-billed Saltator
Saltator aurantiirostris
Golden-billed Saltator
01-04-17 © Victoria Mansilla

Eating fruit of Phoenix canariensis

Eared Dove
Zenaida auriculata
Eared Dove
01-04-17 © Victoria Mansilla