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Northeast Argentina October 2008 Kini Roesler

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Northeast Argentina October 2008 Kini Roesler TRIP REPORT Northeast Argentina October 2008 Kini Roesler WWW.SERIEMATOURS.COM INTRODUCTION Our annual tour to Northeast Argentina took place between 13th and 23rd of October. The trip total was 408, a great achievement which contained a good variety of bird families. It was particularly interesting as regards raptors, since we had 23 diurnal species including the much sought‐after (and Endangered) Crowned Eagle. We also had excellent views of several secretive species, such as Yellow‐ breasted Crake and Canebrake Groundcreeper. A trip surprise was a trio of Chaco Pipits displaying on a wheat field in Entre Rios (a first provincial record). Other highlights worth mentioning include White‐bearded Antshrike, Black‐and‐white Monjita, Strange‐tailed Tyrant, Yellow Cardinal, Marsh Seedeater, Saffron‐cowled Blackbird, to name just a few. As usual, our trip started in Buenos Aires. This year an unprecedented drought was affecting the whole region, so there was no water in any of the lagoons at Costanera Sur. Additionally, a rain storm started during our visit, so we decided to move out and spend some time at some city parks were we had White‐tufted, Pied‐billed and Great Grebes, two species of coots (White‐winged and Red‐gartered) and some herons. The lack of water in Buenos Aires was later compensated as we proceeded on our way up north. At the following site, the Otamendi Nature Reserve, we found two specialties of the area: Curve‐billed and Straight‐billed Reedhaunters. Some ducks and ibises were added to the list too, together with Checkered Woodpecker, Wren‐like Rushbird, Spix’s Spinetail, Sulfur‐throated Spinetail, Rufous‐ cappecappedd AntshrikeAntshrik e, DiDiademedademed TanagerTanager anandd many otothershers. Shortly after, we were birding the next province to the north, Entre Ríos. We counted numerous Southern Screamers, the three species of Whistling‐Ducks and Rosy‐billed Pochard. Bicolored Hawk, Crane Hawk, Aplomado Falcon, White‐fronted Woodpecker, Scimitar‐billed Woodcreeper, Suiriri Flycatcher, Bearded Tachuri, Black‐and‐White Monjita and Xenopsaris are some examples of birds seen in the woods and savannas typical of this province. The endangered Saffron‐cowled Blackbird was one of the highlights in the area. Reaching Iberá marshlands, its spectacular extension allowed us to find a good variety of both common and very rare birds. Rufescent Tiger‐Heron, Roseate Spoonbill and three species of storks (Jabiru, Maguari and Wood) were numerous, and we counted Egrets by the thousands. Snail Kites and Long‐winged Harriers patrolled the marshes incessantly, and we saw a Cinereous Harrier hunting a Blackbird! Other specialties seen in the area include Strange‐tailed Tyrant and a collection of Seedeaters: Rusty‐collared, Capped, Tawny‐bellied, Dark‐throated, Marsh, Rufous‐rumped and Chestnut. Many of these species are range restricted and threatened. We also did very well with rails on this trip. Giant Wood‐Rail was largely the commonest one, and at dawn and dusk we heard Ash‐throated Crake. Exploring other areas by land we added Spot‐flanked Gallinule, Plumbeous, Blackish and Spotted Rails (another reclusive species). During the boat trip in Iberá we had Purple Gallinule, the elusive Rufous‐sided Crake and another trip specialty: the very secretive Yellow‐breasted Crake. From the boat we also enjoyed views of White‐headed Marsh‐ Tyrant. Two of the best species of the trip appeared while exploring the savannas. We had a fantastic sighting of two different Crowned Eagles, and two pairs of Yellow Cardinal were added to our rare bird list. As we proceeded to the north, we caught several migrating waders, such as Greater and Lesser yellowlegs, Solitary and Pectoral Sandpipers, and the Upland Sandpiper (one was perching on a forest tree!). Shortly after crossing the border into the province of Misiones, we entered the spectacular Atlantic Forest. The most diverse ecoregion of the country awaited us for the last part of the trip. On our first day birding here we visited Salto Encantado Provincial Park, a rather unknown place with lots to offer: Spot‐winged Wood‐Quail, Tataupa Tinamou, Rufous‐thighed Kite (possibly nesting?), Spot‐backed Antshrike, Short‐tailed Antthrush and Green‐chinned Euphonia are some examples of the good findings. Later on, we birded the central mountain chain that runs down the province of Misiones like a dorsal spine. Relict Araucaria forest patches near San Pedro hold some spectacular birds like Araucaria Tit‐Spinetail, Chestnut‐backed Tanager, Red‐capped Parrot and three specials: Vinaceous Parrot, Canebrake Groundcreeper and White‐bearded Antshrike. We had all of them after working several sites near the village. A night walk produced a pair of Stygian Owls. Ultimately, we reached our final destination: the town of Puerto Iguazú, the doorway to the mighty fallsfalls.. Birding on forest trails in and around the National Park we found the endangered Black‐fronted Piping‐Guan (with two chicks!) and a myriad of species from all families: Great‐dusky Swift, Black‐ throated and Surucua Trogons, Blond‐crested Woodpecker, Black‐capped Foliage‐Gleaner, Black‐ billed Scythebill, Red‐ruffed Fruitcrow and Creamy‐bellied Gnatcatcher, etc. Some stands of bamboo were flowering this season and we found numerous Temminck’s Seedeater feasting on the seeds. Finally, a customary visit to the hummingbird feeders treated us with face to face views of seven species, including Black Jacobin, Blue‐tufted Starthroat and Planalto Hermit. Once again, the fields, marshes and forests delighted us with their extraordinary variety and abundance of birds. The total list for the trip and the quality of our observations filled our expectations widely and the views of the vast, wild landscapes of Argentine Mesopotamia will surely linger long in our memories. REFERENCES USED ON THE LIST X = A species seen on several localities. I = INTRODUCED E = ENDEMIC SPECIES EB = ENDEMIC BREEDER NE = NEAR ENDEMIC (90% or more of their distribution is in one country) Global threat categories by BirdLife international: CR = CRITICAL E = ENDANGERED VU = VULNERABLE NT = NEAR THREATENED Trip Report - NE Argentina 2008 NUM REF ENGLISH NAME LATIN NAME OBS Family Rheidae (Rheas) Common mainly along roads of Entre Greater Rhea Rhea americana 1 NT Rios and Corrientes Family Tinamidae (Tinamous) 2 NT Solitary Tinamou Tinamus solitarius Heard only at Iguazu NP One heard at Salto Encantado PP Brown Tinamou Crypturellus obsoletus 3 and one flushed near San Pedro One observed fantastically at Salto Tataupa Tinamou Crypturellus tataupa 4 Encantado PP Red-winged Tinamou Rhynchotus rufescens Several individuals along grasslands 5 areas of Corrientes and Entre Rios The commonest Tinamou of the trip. Spotted Nothura Nothura maculosa 6 Allways in grasslands. Family Anhimidae (Screamers) An everyday bird at Entre Rios and Southern Screamer Chauna torquata 7 Corrientes's wetlands. Family Anatidae (Ducks, Geese, Swans) The commonest Duck. We saw pairs White-faced Whistling-Duck Dendrocygna viduata in almost all ponds and lakes of Entre 8 Rios and in corrientes's rice fields. 9 Black-bellied Whistling-Duck Dendrocygna autumnalis Only few groups at Ibera Marshes Less common than White-faced but Fulvous Whistling-Duck Dendrocygna bicolor 10 almost in the same spots Several pairs at Ibera Marshes and a Muscovy Duck Cairina moschata 11 pgpair at Iguazu Falls 12 Brazilian Teal Amazonetta brasiliensis The second commonest duck Common on ponds and lakes of Speckled Teal Anas flavirostris 13 Entre Rios province Yellow-billed Pintail Anas spinicauda 14 Only few individuals at Otamendi NR Seen on ponds and lakes of Entre Rosy-billed Pochard Netta peposaca 15 Rios province Only one male in full nuptial plumage Masked Duck Nomonyx dominicus seen at a small pond north of Santo 16 Tome 17 I Greylag Goose Anser anser Common around houses! Family Cracidae (Chachalacas, Guans, Curassows) Only three individuals seen in Rusty-margined Guan Penelope superciliaris 18 different areas of the Iguazu NP Only heard at Otamendi NR. Also, Dusky-legged Guan Penelope obscura one was heard and seen briefly in 19 Entre Rios. One female with two chicks at the Black-fronted Piping-Guan Pipile jacutinga 20 EN main walkways of Iguazu Falls!!! Family Odontophoridae (Quails) An excellent view of a group of this Spot-winged Wood-Quail Odontophorus capueira secretive forest Quail at Salto 21 Encantado PP Family Podicipedidae (Grebes) One at the very first day in Palermo White-tufted Grebe Rollandia rolland City Park's lake, inside Buenos Aires 22 City Two at Palermo City Park and Pied-billed Grebe Podilymbus podiceps another in an small pond in Entre 23 Rios province. 24 Great Grebe Podiceps major One pair at Palermo City Park Family Phalacrocoracidae (Cormorants, Cormorants) 25 Neotropic Cormorant Phalacrocorax brasilianus Common. Family Anhingidae (Anhingas) [email protected] www.seriematours.com Page 8 Trip Report - NE Argentina 2008 Common in the Ibera Marshes and Anhinga Anhinga anhinga 26 also several at Iguazu Falls. Family Ardeidae (Herons, Egrets, Bitterns) Rufescent Tiger-Heron Tigrisoma lineatum 27 Some individuals at Ibera Marshes Two heard at Camba Trapo, Ibera Least Bittern Ixobrychus exilis 28 Marshes. 29 Black-crowned Night-Heron Nycticorax nycticorax Common. 30 Striated Heron Butorides striata Common. 31 Cattle Egret Bubulcus ibis Abundant in grazing fields 32 Cocoi Heron Ardea cocoi Common 33 Great Egret Ardea alba Common quite common at short grassland Whistling Heron Syrigma sibilatrix 34
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