News - March 2016

March 05, 2016 23:43

Iguana hackberry
Celtis iguanae

© Sergio Cusano
Family Celtidaceae. Plant with orange fruits which is in the Middle Path. Once by a bench (now removed) with view over the Grebe Pond.

Cattail
Typha sp.

© J. Simón Tagtachian
Family Typhaceae. It is found worldwide. It inhabits marshes and the edges of water bodies. They multiply through seeds which are dispersed by the wind or through rhyzomes forming dense stands, cattail beds.
In the photo the inflorescence, the brown terminal spike is seen. Here three different species can be found: Typha latifolia, Typha domingensis and Typha subulata. They cannot be distinguished with the naked eye, so they appear as Typha sp.
When the ponds went dry in 2008, the cattails covered the whole beds of the ponds turning them into cattail beds. With the filling of the ponds with river water, the cattail beds are being removed.

Mexican petunia
Ruellia brittoniana

Luckily Sergio found the name with this exotic bush native to Mexico and belongs to the family Acanthaceae. This plant is in the "garden" of Viamonte Cabin.

Yellow oleander
Thevetia peruviana

26 3 16 © J. Simón Tagtachian
Family Apocynaceae. Exotic tree native to tropical America
Like the oleander
Nerium oleander it is a toxic plant either by ingesting the seeds or getting in contact with its sap. This plant is by a viewpoint, the first one on the right along the Lizard Path in direction to Viamonte. It is very showy for the yellow colouring of flowers contrasting with the green of leaves.

Ash tree
Fraxinus pennsylvanica

© J. Simón Tagtachian
Family Oleaceae. Exotic tree native to the US. The yellow colouring it takes in autumn is characteristic of this species. In the photo the fruits, elongated samaras, can be seen
Practically half the street trees in Buenos Aires City are ash trees. When buildings tamper sunlight they bend towards it.

Fig tree
Ficus carica

© Claudia Mon The fig tree is an exotic plant native to the southeastern Asia and the Mediterranean. It belongs in the Family Moraceae. Its fruit has been appreciated as a highly nutritous food since historical times. It has been introduced all over the world.
The fig is very distinctive. It is know as infrutescence or false fruit since it is in the inside where the fruits are.

Nueva polilla

Imperial moth

Eacles imperialis opaca

26-03-16 © Álvaro Ortiz Naretto

Subspecies opaca

26-03-16 © J. Simón Tagtachian

Subspecies opaca

American white skipper

Heliopyrgus americanus bellatrix

24-03-16 © Sergio Cusano

Pyrgus orcynoides

24-03-16 © Sergio Cusano

White-patched duskywing

Chiomara autander autander

24-03-16 © Sergio Cusano

Russula metalmark

Emessis russula

24-03-16 © Sergio Cusano

Great southern white

Ascia monuste automate

26-03-16 © J. Simón Tagtachian

Common yellow

Eurema deva

26-03-16 © J. Simón Tagtachian

Southern Monarch

Danaus erippus

26-03-16 © Álvaro Ortiz Naretto

Io moth

Automeris naranja

24-03-16 © Sergio Cusano

Ailanthus webworm moth

Atteva pustulella

24-03-16 © Sergio Cusano

Green Kingfisher

Chloroceryle americana

26-03-16 © J. Simón Tagtachian

Female with a frog as prey

26-03-16 © J. Simón Tagtachian

Female with a frog as prey

More brochures to remember

Monthly bulletin, August 1th, 1994

Este material fue aportado por Javier Ubiría

Aprox 2003
Contribution by Adrián Nirich

and there is more at Brochures and boards

Two new orthopterans

True crickets

Phylloscyrtus amoenus

06-03-16 © Eduardo Nicolás Cusano

Top, a cricket (long antennae)or the Family Gryllidae. Below, a locust (short antennae) of the Family Romaleidae

Lubber Grasshopper

Coryacris angustipennis

02-03-16 © Sergio Cusano

This insect lives in semiaquatic environments. It may feed on both aquatic and terrestrial plants.

Robber fly

Efferia (s.l.) sp.

14-02-16 © Sergio Cusano

Very different from common houseflies. This fly is very aggressive as it name indicates. The mouthparts form a proboscis which is stabbed in the prey. It injects toxic substances and enzymes to both paralyze the victim and digest its contents, which then are sucked. It feeds on insects. In these two cases the preys may be a sweat bee of the family Halictidae.

March 26th - Bird Survey organized by the COARECS
The day was cloudy during all the morning. Luckily the expected rain fell when we had already gathered to count the species.
To see the result

Roseate Spoonbill

Platalea ajaja

26-03-16 © Álvaro Ortiz Naretto

26-03-16 © J. Simón Tagtachian

Scarlet-headed Blackbird

Amblyramphus holosericeus

26-03-16 © Álvaro Ortiz Naretto

Grayish Saltator

Saltator coerulescens

26-03-16 © Álvaro Ortiz Naretto

Brown-chested Martin

Progne tapera

26-03-16 © J. Simón Tagtachian

They begin to gather to leave

Tropical Kingbird

Tyrannus melancholicus

26-03-16 © J. Simón Tagtachian

Red-crested Cardinal

Paroaria coronata

26-03-16 © Marcelo Leanes

There were 6 juveniles

Blue-and-yellow Tanager

Pipraeidea bonariensis

26-03-16 © Álvaro Ortiz Naretto

Yellow-browed Tyrant

Satrapa icterophrys

26-03-16 © Álvaro Ortiz Naretto

Chimango Caracara

Milvago chimango

26-03-16 © J. Simón Tagtachian

Harris's Hawk

Parabuteo unicinctus

26-03-16 © Álvaro Ortiz Naretto

Ringed Teal

Callonetta leucophrys

26-03-16 © J. Simón Tagtachian

Southern Lapwing

Vanellus chilensis

26-03-16 © J. Simón Tagtachian

White-lined Tanager

Tachyphonus rufus

26-03-16 © Álvaro Ortiz Naretto

Double-collared Seedeater

Sporophila caerulescens

26-03-16 © Álvaro Ortiz Naretto

26-03-16 © Marcelo Leanes

Snowy Egret

Egretta thula

06-03-16 © Marco Fidalgo

The greenish legs and the bill led us to erronously conclude that this was a juvenile Little Blue Heron. Lui explains to us that the little blue heron has the face of another colour and that in this plumage outer primaries should be expected to have some black colouring.

Savanna Hawk

Buteogallus meridionalis

06-03-16 © Marco Fidalgo

The fight between the savanna hawk and the caracaras

Birds visiting the floating mats by Marco

Cocoi Heron

Ardea cocoi

16-03-16 © Marco Fidalgo

Wattled Jacana

Jacana jacana

16-03-16 © Marco Fidalgo

Giant Wood-Rail

Aramides ypecaha

16-03-16 © Marco Fidalgo

Rufescent Tiger-Heron

Tigrisoma lineatum

16-03-16 © Marco Fidalgo

Cattle Tyrant

Machetornis rixosa

06-03-16 © Marco Fidalgo

Rufescent Tiger-Heron

Tigrisoma lineatum

16-02-16 © Marco Fidalgo

Brazilian Teal

Amazonetta brasiliensis

05-02-16 © Marco Fidalgo

Cocoi Heron

Ardea cocoi

05-02-16 © Marco Fidalgo

Wattled Jacana

Jacana jacana

31-01-16 © Marco Fidalgo

Common Gallinule

Gallinula galeata

31-01-16 © Marco Fidalgo

Brazilian Teal

Amazonetta brasiliensis

24-03-16 © Sergio Cusano

Solitary Black Cacique

Cacicus solitarius

24-03-16 © Sergio Cusano

Brown-chested Martin

Progne tapera

24-03-16 © Sergio Cusano

Black-capped Warbling-Finch

Poospiza melanoleuca

24-03-16 © Sergio Cusano

Red-crested Cardinal

Paroaria coronata

24-03-16 © Sergio Cusano

Great Kiskadee

Pitangus sulphuratus

24-03-16 © Sergio Cusano

European Starling

Sturnus vulgaris

24-03-16 © Sergio Cusano

Eating from the garbage bag

Tropical Kingbird

Tyrannus melancholicus

22-03-16 © Nicolás Giorgio

Sayaca Tanager

Thraupis sayaca

16-03-16 © Nicolás Giorgio

Roadside Hawk

Rupornis magnirostris

22-03-16 © Nicolás Giorgio

Gilded Hummingbird

Hylocharis chrysura

22-03-16 © Nicolás Giorgio

Flowers and fruits
Yellow bird of paradise *Caesalpinia gilliesii*© Carlos González Ledo	Yellow bird of paradise *Caesalpinia gilliesii*© Silvi González
Ombú *Phytolacca dioica*© Sergio Cusano	Brazilian arnica *Solidago chilensis*© J. Simón Tagtachian
Silk floss tree *Chorisia speciosa*© J. Simón Tagtachian	Silk floss tree *Chorisia speciosa*© Sergio Cusano
Pink pavonia *Pavonia hastata*© Gustavo f. Brahamian	Spanish dagger *Yucca gloriosa*© Sergio Cusano
Avocado *Persea americana*© Sergio Cusano	Horse tail *Equisetum giganteum*© Sergio Cusano

Limpkin

Aramus guarauna

13-03-16 © Gustavo F. Brahamian

Eating apple snail

13-03-16 © Gustavo F. Brahamian

Eating apple snail

13-03-16 © Gustavo F. Brahamian

Eating apple snail

13-03-16 © Gustavo F. Brahamian

Eating apple snail

Monk Parakeet

Myiopsitta monachus

13-03-16 © Gustavo F. Brahamian

With a piece of bread

Snowy Egret

Egretta thula

13-03-16 © Gustavo F. Brahamian

With two male Brazilian teals

13-03-16 © Gustavo F. Brahamian

Southern fritillary

Euptoieta hortensia

19-03-16 © Sergio Cusano

Laurentia Emperor

Doxocopa laurentia laurentia

19-03-16 © Sergio Cusano

Great southern white

Ascia monuste automate

06-03-16 © Eduardo Nicolás Cusano

American white-milk

Tatochila mercedis vanvolxemii

19-03-16 © Sergio Cusano

Big lazy

Actinote pyrrha

13-03-16 © Gustavo F. Brahamian

19-03-16 © Sergio Cusano

Ithra crescent

Ortilia ithra

06-03-16 © Eduardo Nicolás Cusano

Gisca skipper

Cymaenes gisca

13-03-16 © Gustavo F. Brahamian

Claudina crescent

Tegosa claudina

13-03-16 © Gustavo F. Brahamian

Southern buckeye

Junonia genoveva hilaris

20-03-16 © J. Simón Tagtachian

Lesbia sulphur

Colias lesbia

19-03-16 © Sergio Cusano

Fiery skipper

Hylephila phyleus

13-03-16 © Gustavo F. Brahamian

13-03-16 © Gustavo F. Brahamian

19-03-16 © Sergio Cusano

Bagworm

Oiketicus sp.

19-03-16 © Sergio Cusano

Sunflower looper

Rachiplusia nu

19-03-16 © Sergio Cusano

New mammal species

Chacoan gracile opossum

Crytonanus chacoensis

20-03-16 © Favio Gustavo Belotto

Favio found this little opossum at the edge of the trail on the Alisos Path. He says it was quiet and then got into the grassland. The size in this position would be 5 cm (without the tail). This opossum is in fact very small and its prehensile tail is longer than its head and body together. It is arboreal and nocturnal. Females lack a pouch.
Up until recently it has been known as Gracilinanus agilis chacoensis and now it is Cryptonanus chacoensis..

Colubroidean snake

Helicops infrataeniatus

19-03-16 © Sergio Cusano

Walking along the coast from the Brasil end we found two individuals. The first one rapidly crept into the vegetation whereas the second one set to cross the road in a very slow manner. We had a feeling that something bad would happen to it so we stayed and warned passing-by cyclists and runners about the snake. It took it more than five minutes to reach the other side. Once safe we continued.

Urutu pit viper

Bothrops alternatus

19-03-16 © Sergio Cusano

At Canal Viamonte

Tetra

Astyanax sp.

05-03-16 © Sergio Cusano

Rat

Rattus sp.

12-03-16 © J. Simón Tagtachian

This genus of rodents are known as rats, though rats is generic for other genera as well. This genus encompasses species associated with urban environments They have a long body, pointed snout and long ears. The fur is thick, except on the tail which is almost naked. The tail is long and used for stability during jumping, for balance when moving along pipes or cables and for swimming.

Insects and a spider

Paper wasp

Polistes sp.

06-03-16 © Eduardo Nicolás Cusano

Camuati Wasp

Polybia scutellaris

06-03-16 © Eduardo Nicolás Cusano

Red Bug

Dysdercus albofasciatus

06-03-16 © Eduardo Nicolás Cusano

Rhino beetle

Diloboderus abderus

05-03-16 © Sergio Cusano

Spur-throated grasshopper

Ronderosia bergii

27-08-14 © Sergio Cusano

Spur-throated grasshopper

Dichroplus elongatus

20-02-16 © Sergio Cusano

Hoverfly

Palpada sp

06-03-16 © Eduardo Nicolás Cusano

At Grindelia pulchella

Golden Silk Orbweaver

Trichonephila clavipes

19-03-16 © Sergio Cusano

The male is the smaller

Barn Swallow

Hirundo rustica

20-03-16 © J. Simón Tagtachian

I saw the Barn Swallows over the court area at Viamonte. First there were 5 or 6. I stayed there ready to shoot them on the wing. Then there were two individuals, the ones photgraphed. All of them moved very high and quickly from south to north. Besides there was a bigger number of Brown-chested Martins, groups of 20/30 which flew in moving circles. Along this same "corridor" caracaras and chimangoes went by.

Ultramarine Grosbeak

Cyanoloxia brissonii

20-03-16 © J. Simón Tagtachian

Adult male and juvenile male beginning to change into adult plumage

Sayaca Tanager

Thraupis sayaca

16-03-16 © J. Simón Tagtachian

Red-crested Cardinal

Paroaria coronata

16-03-16 © J. Simón Tagtachian

Tropical Kingbird

Tyrannus melancholicus

20-03-16 © J. Simón Tagtachian

Glittering-bellied Emerald

Chlorostilbon lucidus

20-03-16 © J. Simón Tagtachian

At blue anise sage Salvia guaranitica

Gilded Hummingbird

Hylocharis chrysura

20-03-16 © J. Simón Tagtachian

At blue anis sage Salvia guaranitica

Glittering-bellied Emerald

Chlorostilbon lucidus

20-03-16 © J. Simón Tagtachian

Juvenile at Lycium cestroides

Cocoi Heron

Ardea cocoi

20-03-16 © J. Simón Tagtachian

With Pekin ducks and common gallinule

Hooded Siskin

Spinus magellanicus

20-03-16 © J. Simón Tagtachian

Eating bull thistle Cirsium vulgare

House Sparrow

Passer domesticus

20-03-16 © J. Simón Tagtachian

Eating seeds of pampas grass Cortaderia selloana

Shiny Cowbird

Molothrus bonariensis

20-03-16 © J. Simón Tagtachian

Rufous-collared Sparrow

Zonotrichia capensis

20-03-16 © J. Simón Tagtachian

Adult and juvenile eating seeds of pampas grass Cortaderia selloana

20-03-16 © Sergio Cusano

White-tufted Grebe

Rollandia rolland

19-03-16 © Sergio Cusano

Yellow-billed Teal

Anas flavirostris

19-03-16 © Sergio Cusano

Striated Heron

Butorides striata

19-03-16 © Sergio Cusano

Eared Dove

Zenaida auriculata

19-03-16 © Sergio Cusano

Kelp Gull

Larus dominicanus

19-03-16 © Sergio Cusano

27 individuals passed in groups

Golden-crowned Warbler

Basileuterus culicivorus

19-03-16 © Sergio Cusano

Views of the river from the Willow Path

Río desde Camino de los Sauces/River from Willow Path

19 3 16 © Sergio Cusano

New butterfly species

Red-crested Cardinal

Paroaria coronata

10-06-14 © Nicolás Giorgio

Ash-colored Cuckoo

Coccycua cinerea

16-03-16 © José Alberto Lell

Masked Yellowthroat

Geothlypis aequinoctialis

15-03-16 © Nicolás Giorgio

Tropical Kingbird

Tyrannus melancholicus

15-03-16 © Nicolás Giorgio

Southern Caracara

Caracara plancus

15-03-16 © Nicolás Giorgio

Limpkin

Aramus guarauna

15-03-16 © Nicolás Giorgio

Red-gartered Coot

Fulica armillata

15-03-16 © Nicolás Giorgio

Brown-chested Martin

Progne tapera

13-03-16 © Gustavo F. Brahamian

Guira Cuckoo

Guira guira

12-03-16 © Gustavo F. Brahamian

Tow ducks and their speculum

Silver Teal

Anas versicolor

12-03-16 © J. Simón Tagtachian

Speculum white-green-white. The green line may be seen blue

Yellow-billed Teal

Anas flavirostris

12-03-16 © J. Simón Tagtachian

Speculum: white-black-ochre

Harris's Hawk

Parabuteo unicinctus

12-03-16 © J. Simón Tagtachian

With an injured wing

Checkered Woodpecker

Veniliornis mixtus

12-03-16 © J. Simón Tagtachian

Cattle Tyrant

Machetornis rixosa

12-03-16 © J. Simón Tagtachian

Shiny Cowbird

Molothrus bonariensis

12-03-16 © J. Simón Tagtachian

Changing feathers of the head

Scissor-tailed Nightjar

Hydropsalis torquata

12-03-16 © J. Simón Tagtachian

Diademed Tanager

Stephanophorus diadematus

12-03-16 © Elsa y Guillermo Marcaida

12-03-16 © Pablo Serur

13-03-16 © Gustavo F. Brahamian

The juveniles are still seen in the Middle Path. The light is not very good but there is some red colouring on the head.

Freckle-breasted Thornbird

Phacellodomus striaticollis

12-03-16 © Elsa y Guillermo Marcaida

Saffron Finch

Sicalis flaveola

12-03-16 © J. Simón Tagtachian

White-eyed Parakeet

Psittacara leucophtalmus

12-03-16 © Elsa y Guillermo Marcaida

12-03-16 © J. Simón Tagtachian

Roadside Hawk

Rupornis magnirostris

12-03-16 © J. Simón Tagtachian

Red-eyed Vireo

Vireo olivaceus

12-03-16 © J. Simón Tagtachian

Blue-and-white Swallow

Pygochelidon cyanoleuca

12-03-16 © J. Simón Tagtachian

White-lined Tanager

Tachyphonus rufus

12-03-16 © Elsa y Guillermo Marcaida

Cassius blue

Leptotes cassius

05-03-16 © Gustavo F. Brahamian

Eurytulus scrub-hairstreak

Strymon eurytulus

05-03-16 © Silvia Ana González

Dichrous skipper

Theagenes dichrous

06-03-16 © Eduardo Nicolás Cusano

Big lazy

Actinote pyrrha

06-03-16 © Eduardo Nicolás Cusano

Orcus checkered skipper

Pyrgus orcus

Celmis satyr

Ypthimoides celmis

Common Lazy

Actinote pellenea

Common yellow

Eurema deva

Southern Monarch

Danaus erippus

Claudina crescent

Tegosa claudina

Southern buckeye

Junonia genoveva hilaris

Gulf fritillary

Agraulis vanillae maculosa

Mexican silverspot

Dione moneta

Southamerican lady

Vanessa braziliensis

Black-and-white tegu lizard

Salvator merianae

Coypu

Myocastor coypus

New bird species

Savanna Hawk

Buteogallus meridionalis

The fight between the savanna hawk and the caracaras

I heard raptor voices, look up and see two caracaras attacking a hawk very aggresively. .. A second look, reminded me of known silhouette, since I had already photographed it many times in Ceibas and in Perdices. It was a Savanna Hawk.... One photo is good but the rest show the fight

Old bird list (24-4-1994)

First sheet of an old bird list of RECS (species recorded from 1984 to Oct. 1993). It was handed at the Visitors' Center (Brasil Access).
Author: Adriana Ruidíaz.
To see the whole document clic on sheet Material provided by Javier Ubiría.
See other old brochures and boards. If you have one to add, it will be welcome

Snail Kite

Rostrhamus sociabilis

Vermilion Flycatcher

Pyrocephalus rubinus

Screaming Cowbird

Molothrus rufoaxillaris

Yellow-billed Cardinal

Paroaria capitata

Red-crested Cardinal

Paroaria coronata

Gray-necked Wood-Rail

Aramides cajaneus

Neotropic Cormorant

Phalacrocorax brasilianus

With a marbled swamp eel. It is called eel because it looks like an eel but in fact it is a fish

Limpkin

Aramus guarauna

View

Stripe-backed Bittern

Ixobrychus involucris

Dark-billed Cuckoo

Coccyzus melacoryphus

Elsa discovered it

Diademed Tanager

Stephanophorus diadematus

White-winged Becard

Pachyramphus polychopterus

Variable Oriole

Icterus pyrrhopterus

Adults with juvenile

Cocoi Heron

Ardea cocoi

Plumbeous Rail

Pardirallus sanguinolentus

Rosy-billed Pochard

Netta peposaca

Great Kiskadee

Pitangus sulphuratus

01-12-13 ©

Great Kiskadee

Pitangus sulphuratus

Some getting ready to leave

Streaked Flycatcher

Myiodynastes maculatus

Masked Yellowthroat

Geothlypis aequinoctialis

Tropical Kingbird

Tyrannus melancholicus

Dark-billed Cuckoo

Coccyzus melacoryphus

White-winged Becard

Pachyramphus polychopterus

Yellow-browed Tyrant

Satrapa icterophrys

Glittering-bellied Emerald

Chlorostilbon lucidus

Gilded Hummingbird

Hylocharis chrysura

Harris's Hawk

Parabuteo unicinctus

Yellow-billed Cardinal

Paroaria capitata

Gray-necked Wood-Rail

Aramides cajaneus

Nenday Parakeet

Aratinga nenday

Monk Parakeet

Myiopsitta monachus

With a rusty nail

With a nail

Colubroidean snake

Helicops infrataeniatus

Pied-billed Grebe

Podilymbus podiceps

Never mind whether this is a Australoheros facetus or a Gymnogeophagus meridionalis, it must get rid of its pirate relatives first.

Urutu pit viper

Bothrops alternatus

Diademed Tanager

Stephanophorus diadematus

Freckle-breasted Thornbird

Phacellodomus striaticollis

Cattle Tyrant

Machetornis rixosa

Variable Oriole

Icterus pyrrhopterus

Rosy-billed Pochard

Netta peposaca

There are too many rosy-billed pochards in the pond. This individual is changing into the adult male plumage. His eyes are already red and it is painting black. He is certainly one of the too many ducklings we saw born in the reserve.

Black-capped Warbling-Finch

Poospiza melanoleuca