News - April 2016

April 04, 2016 02:38

More plants and flowers
Cattail *Typha sp.*© Sergio Cusano	Cattail *Typha sp.*© J. Simón Tagtachian
Firespike *Odontonema strictum*© Sergio Cusano	White brush *Aloyssia gratissima*© Cora Rimoldi
Eupatorium inulifolium *Eupatorium inulifolium*© Cora Rimoldi	Pink rain lily *Zephyrantes rosea*© Carlos González Ledo
Smartweed *Polygonum punctatum*© Cora Rimoldi	Philodendron undulatum *Philodendron undulatum*© Cora Rimoldi
Japanese pittosporum *Pittosporum tobira*© Cora Rimoldi	Sticky nightshade *Solanum sisymbriifolium*© Cora Rimoldi
Wedelia glauca *Wedelia glauca*© Cora Rimoldi	Narrow-leaved Bird's foot Trefoil *Lotus glaber*© Cora Rimoldi
Busy Lizzy *Impatiens walleriana*© Sergio Cusano	Busy Lizzy *Impatiens walleriana*© J. Simón Tagtachian
Busy Lizzy *Impatiens walleriana*© Sergio Cusano	Busy Lizzy *Impatiens walleriana*© J. Simón Tagtachian

Dark-faced Ground-Tyrant

Muscisaxicola maclovianus

30-04-16 © Claudia Mon

30-04-16 © Cora Rimoldi

Diademed Tanager

Stephanophorus diadematus

30-04-16 © Cora Rimoldi

Ferruginous Pygmy-Owl

Glaucidium brasilianum

30-04-16 © Claudia Mon

30-04-16 © Cora Rimoldi

Ignacio discovered the owl very far in a poplar. When it turns the head, you can see the fake eyes.

Green Kingfisher

Chloroceryle americana

30-04-16 © Oscar Krasmansky

Great Grebe

Podiceps major

30-04-16 © Cora Rimoldi

Kelp Gull

Larus dominicanus

30-04-16 © J. Simón Tagtachian

Grayish Saltator

Saltator coerulescens

30-04-16 © Claudia Mon

Sooty-fronted Spinetail

Synallaxis frontalis

30-04-16 © Claudia Mon

30 4 16 © Cora Rimoldi

Great Kiskadee

Pitangus sulphuratus

30-04-16 © J. Simón Tagtachian

Solitary Black Cacique

Cacicus solitarius

30-04-16 © Claudia Mon

Eating the fruit of Phytolacca dioica

30-04-16 © Cora Rimoldi

Hooded Siskin

Spinus magellanicus

30-04-16 © Claudia Mon

The genus of this passerine has changed once more. I knew it as Carduelis. In 2011 it became Sporagra, when it was separated from North American and the Caribbean fringillids, which comprised Spinus. New DNA studies place them now along with the Spinus.
Here we found a small flock of 15.

Roadside Hawk

Rupornis magnirostris

30-04-16 © Oscar Krasmansky

Narrow-billed Woodcreeper

Lepidocolaptes angustirostris

30-04-16 © Oscar Krasmansky

View of the river and sailing boats

30 4 16 © J. Simón Tagtachian

Rufescent Tiger-Heron

Tigrisoma lineatum

24-04-16 © Carlos González Ledo

Spectacled Tyrant

Hymenops perspicillatus

24-04-16 © Carlos González Ledo

Cattle Tyrant

Machetornis rixosa

24-04-16 © Carlos González Ledo

Two new caterpillars of known butterflies

Chilean lady

Vanessa carye

22-04-16 © Cora Rimoldi

Mexican silverspot

Dione moneta

22-04-16 © Cora Rimoldi

Feeds on Passifloraceae. Here on Passiflora mirafolia

Banded longwing

Heliconius erato phyllis

22-04-16 © Gustavo Masuzzo

American white-milk

Tatochila mercedis vanvolxemii

30-04-16 © J. Simón Tagtachian

Laurentia Emperor

Doxocopa laurentia laurentia

29-04-16 © J. Simón Tagtachian

30-04-16 © J. Simón Tagtachian

Southern fritillary

Euptoieta hortensia

22-04-16 © Gustavo F. Brahamian

Eufala skipper

Lerodea eufala

22-04-16 © Gustavo F. Brahamian

Julia

Dryas iulia alcionea

22-04-16 © Hugo Aguilar

Cassius blue

Leptotes cassius

29-04-16 © Claudia Vilma Mon

Common white-milk

Tatochila autodice

22-04-16 © Gustavo F. Brahamian

Dichrous skipper

Theagenes dichrous

29-04-16 © J. Simón Tagtachian

Ithra crescent

Ortilia ithra

29-04-16 © J. Simón Tagtachian

Lesbia sulphur

Colias lesbia

29-04-16 © J. Simón Tagtachian

Gulf fritillary

Agraulis vanillae maculosa

22-04-16 © Gustavo F. Brahamian

Bella mapwing

Hypanartia bella

29-04-16 © J. Simón Tagtachian

Mexican silverspot

Dione moneta

29-04-16 © J. Simón Tagtachian

Big lazy

Actinote pyrrha

03-04-16 © Marcelo Leanes

Common Lazy

Actinote pellenea

01-04-16 © Cora Rimoldi

Claudina crescent

Tegosa claudina

22-04-16 © Gustavo F. Brahamian

Southern Monarch

Danaus erippus

22-04-16 © Gustavo F. Brahamian

Carrion-eating flies

9 4 16 © Sergio Cusano
A big number of green and blue bottle bowflies (both belong into the Family Calliphoridae) were sitting on the vegetation. Near this swarm of flies there was a rat lying dead also covered with flies.
Though the scene is repulsive to us, this rat is the rich source of nutrients which will be exploited by both the larvae and the adults. Since they have no masticatory apparatus they throw up enzymes which dissolve the material to be consumed.

The reserve and its birds have reached Canada

Pierre Pontbriand took part in walks and bird surverys. He wrote this article which has been published in the Société de Biologie de Montréal.
Clic on photo to read it.

Flowers and frutis
Alligator flag *Thalia geniculata*© Sergio Cusano	Maize *Zea mays*© Sergio Cusano
Fragrant petunia *Petunia axillaris*© Sergio Cusano	Old man's beard *Clematis montevidensis*© Cora Rimoldi
Goat's rue *Galega officinalis*© Sergio Cusano	Purple heart *Tradescantia pallida*© Sergio Cusano
Moonflower *Ipomoea alba*© Sergio Cusano	Wild Pea *Vigna adenantha*© Cora Rimoldi

White-banded Mockingbird

Mimus triurus

24-04-16 © Claudia Mon

Great Pampa-Finch

Embernagra platensis

24-04-16 © Silvia Ana González

Southern Lapwing

Vanellus chilensis

24-04-16 © Claudia Mon

Blue-and-yellow Tanager

Pipraeidea bonariensis

24-04-16 © Silvia Ana González

View of the Canal Carlota Roberts
Water haycinth mats covering the canal on Sunday.

24 4 16 © Silvia González

24 4 16 © Silvia González
y de los visitantes

24 4 16 © Silvia González
Common gallinules

24 4 16 © Silvia González
European starlings

White-winged Coot

Fulica leucoptera

23-04-16 © Sergio Cusano

Southern Screamer

Chauna torquata

23-04-16 © Sergio Cusano

Note the difference in size with white-faced whistling-ducks

Cocoi Heron

Ardea cocoi

23-04-16 © Sergio Cusano

Kelp Gull

Larus dominicanus

23-04-16 © Sergio Cusano

Black-capped Warbling-Finch

Poospiza melanoleuca

23-04-16 © Claudia Mon

Rosy-billed Pochard

Netta peposaca

23-04-16 © Sergio Cusano

Solitary Black Cacique

Cacicus solitarius

23-04-16 © Claudia Mon

Variable Oriole

Icterus pyrrhopterus

23-04-16 © Claudia Mon

Golden-crowned Warbler

Basileuterus culicivorus

23-04-16 © Claudia Mon

White-lined Tanager

Tachyphonus rufus

23-04-16 © Claudia Mon

The white-lined tanager behind the golden-billed saltator in a puddle

Views from the sidewalk

23 4 16 © Sergio Cusano

Urutu pit viper

Bothrops alternatus

21-04-16 © Mario Martín Chimento

Scarlet-headed Blackbird

Amblyramphus holosericeus

16-04-16 © Claudia Mon

White-tufted Grebe

Rollandia rolland

16-04-16 © Claudia Mon

Red-crested Cardinal

Paroaria coronata

16-04-16 © Claudia Mon

Giant Wood-Rail

Aramides ypecaha

16-04-16 © Claudia Mon

Silver Teal

Anas versicolor

16-04-16 © Claudia Mon

Showing the speculum. The central stripe may be seen either blue or green according to the light. Here the two colours may be appreciated

Rosy-billed Pochard

Netta peposaca

16-04-16 © Claudia Mon

Not the normal colouring

Brazilian Teal

Amazonetta brasiliensis

16-04-16 © Claudia Mon

Limpkin

Aramus guarauna

16-04-16 © Claudia Mon

Mist

14 4 16 © Nicolás Giorgio
Bad weather continues and more rains are expected.

Rock Pigeon

Columba livia

14-04-16 © Nicolás Giorgio

With feathered legs

Rufescent Tiger-Heron

Tigrisoma lineatum

12-04-16 © Nicolás Giorgio

Works

12 4 16 © Nicolás Giorgio

White-winged Becard

Pachyramphus polychopterus

10-04-16 © Claudia Mon

Roseate Spoonbill

Platalea ajaja

10-04-16 © Claudia Mon

Blue-and-yellow Tanager

Pipraeidea bonariensis

10-04-16 © Claudia Mon

Blue-and-yellow Tanager

Pipraeidea bonariensis

10-04-16 © Claudia Mon

Sooty-fronted Spinetail

Synallaxis frontalis

10-04-16 © Claudia Mon

White-lined Tanager

Tachyphonus rufus

10-04-16 © Claudia Mon

Creamy-bellied Thrush

Turdus amaurochalinus

10-04-16 © Claudia Mon

Views of the coast at the Viamonte end

Vista Costa Viamonte/Viamonte Coast View

10 4 16 © Claudia Mon

Small-billed Elaenia

Elaenia parvirostris

09-04-16 © Claudia Mon

Rufous Hornero

Furnarius rufus

09-04-16 © Claudia Mon

Cattle Tyrant

Machetornis rixosa

09-04-16 © Claudia Mon

Red-gartered Coot

Fulica armillata

09-04-16 © Claudia Mon

Nenday Parakeet

Aratinga nenday

09-04-16 © J. Simón Tagtachian

Landing on white cedars

09-04-16 © J. Simón Tagtachian

Landing on white cedars

Rosy-billed Pochard

Netta peposaca

09-04-16 © J. Simón Tagtachian

House Wren

Troglodytes aedon

09-04-16 © Claudia Mon

Butterflies and a moth
Lowland Owlet *Opsiphanes invirae amplificatus*© Sergio Cusano	Ghost Yellow *Eurema albula sinoe*© Sergio Cusano
Lantana Scrub-Hairstreak *Strymon bazochii*© Sergio Cusano	Snout *Libytheana carinenta*© Sergio Cusano
Cloudless Sulphur *Phoebis senna marcellina*© Sergio Cusano	American White Skipper *Heliopyrgus americanus bellatrix*© Sergio Cusano
Russula Metalmark *Emessis russula*© Sergio Cusano	Cassius Blue *Leptotes cassius*© Sergio Cusano
Great Southern White *Ascia monuste automate*<© Sergio Cusano	*Atteva pustulella* © Sergio Cusano
Common Lazy *Actinote pellenea*© Sergio Cusano	Lyssipoides Metalmark *Riodina lyssipoides*© Sergio Cusano
Southern Buckeye *Junonia genoveva hilaris*© Sergio Cusano	Southern Buckeye *Junonia genoveva hilaris*© Marcelo Leanes
Mexican Silverspot *Dione moneta*© Sergio Cusano	Claudina Crescent *Tegosa claudina*© Sergio Cusano
Monarch *Danaus erippus*© Sergio Cusano	Monarch *Danaus erippus*© J. Simón Tagtachian

Some plants, flowers and fruits
Wand riverhemp *Sesbania virgata*© Sergio Cusano	Wand riverhemp *Sesbania virgata*© Silvia González
Wand riverhemp *Sesbania virgata*© Sergio Cusano	Smooth beggarticks *Bidens laevis*© Sergio Cusano
Rooted water hyacinth *Eichhornia azurea*© Sergio Cusano	Rooted water hyacinth *Eichhornia azurea*© Silvia González
Striped rosemallow *Hibiscus cisplatinus*© J. Simón Tagtachian	Striped rosemallow *Hibiscus cisplatinus*© Sergio Cusano
*Dolichandra cynanchoides* © Silvia González	*Dolichandra cynanchoides* © Sergio Cusano
Smartweed *Polygonum acuminatum*© Sergio Cusano	Smartweed *Polygonum acuminatum*© Silvia González
Mirlinton *Sechium edule*© Sergio Cusano	Pink pavonia *Pavonia hastata*© Sergio Cusano
Cow pea *Vigna luteola*© Sergio Cusano	Blue anise sage *Salvia guaranitica*© Sergio Cusano
*Lippia alba* © Sergio Cusano	Silk floss tree *Chorisia speciosa*© Sergio Cusano
*Muehlenbeckia sagittifolia* © Silvia González	*Muehlenbeckia sagittifolia* © Sergio Cusano

White-tailed Hawk

Geranoaetus albicaudatus

09-04-16 © Silvia Ana González

Spot-flanked Gallinule

Gallinula melanops

09-04-16 © Sergio Cusano

Red-crested Cardinal

Paroaria coronata

09-04-16 © Silvia Ana González

White-lined Tanager

Tachyphonus rufus

10-04-16 © Ana Verardo

Red-fronted Coot

Fulica rufifrons

09-04-16 © Silvia Ana González

Cattle Tyrant

Machetornis rixosa

09-04-16 © Sergio Cusano

Nenday Parakeet

Aratinga nenday

09-04-16 © Sergio Cusano

09-04-16 © Silvia Ana González

Rosy-billed Pochard

Netta peposaca

09-04-16 © Silvia Ana González

Brazilian Teal

Amazonetta brasiliensis

Rufous-bellied Thrush

Turdus rufiventris

Mallard Duck

Anas platyrhynchos

Streaked prochilid

Prochilodus lineatus

Reserved closed on Saturday

Only a walk along the outer sidewalk Viamonte-Brasil-Viamonte. But two records were worth the day

White-tailed Hawk

Geranoaetus albicaudatus

Roseate Spoonbill

Platalea ajaja

New viewpoint

European Starling

Sturnus vulgaris

Rosy-billed Pochard

Netta peposaca

House Sparrow

Passer domesticus

Great Kiskadee

Pitangus sulphuratus

Rock Pigeon

Columba livia

Rock Pigeon

Columba livia

Guira Cuckoo

Guira guira

Rufous Hornero

Furnarius rufus

Monk Parakeet

Myiopsitta monachus

Cocoi Heron

Ardea cocoi

1 Southern Screamer, 2 White-tufted grebe, 3 Snowy egret, 4 Cocoi heron and 5 Great kiskadee

Rock Pigeon

Columba livia

Green Kingfisher

Chloroceryle americana

Rosy-billed Pochard

Netta peposaca

Striated Heron

Butorides striata

Cocoi Heron

Ardea cocoi

Limpkin

Aramus guarauna

New viewpoint

5 4 16 © Nicolás Giorgio
Works were resumed at the new viewpoint. It is on the Lizard Path almost 300 mt from Viamonte Access. A truck unloads earth and another one tampers it.

Insects

Paper wasp

Polistes cinerascens

Leaf beetle

Coraliomela quadrimaculata

Dragonfly/Skimmers

Tramea cophysa

Dragonfly/Skimmers

Erythemis attala

Vermilion Flycatcher

Pyrocephalus rubinus

Yellow-browed Tyrant

Satrapa icterophrys

Sooty-fronted Spinetail

Synallaxis frontalis

Narrow-billed Woodcreeper

Lepidocolaptes angustirostris

Rufescent Tiger-Heron

Tigrisoma lineatum

Rock Pigeon

Columba livia

Pied-billed Grebe

Podilymbus podiceps

Rosy-billed Pochard

Netta peposaca

A female, two adult males and a juvenile one

Mallard Duck
Mallard Duck

3 4 16 © Sergio Cusano
The saddest thing of the day was the death of "Mallard", the female Mallard Duck which has been moving about Coipos since early last year. I was with Ignacio, Dina, Claudia Mon and Marcelo Leanes when we stopped at the food stand "el chapulin" and there we saw it die.

Green-winged Saltator

Saltator similis

Black-capped Warbling-Finch

Poospiza melanoleuca

Double-collared Seedeater

Sporophila caerulescens