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Chilean Flamingos on scenic Laguna Nimez. Birds and beautiful scenery abound in southern Argentina! (Photo by guide Dave Stejskal)
What a great trip! We spent about two and a half weeks together exploring the scenic and wildlife highlights, and the wine, of Southern Argentina without a hitch - well, almost without a hitch if you exclude the bus breakdown on Day 2! Even with that minor glitch, I thought we did great with just about everything, including the weather. I don't recall the weather ever significantly affecting our birding at all on this one, which might be a first.
The rich, flat pampas in Buenos Aires Province was our first venue and it proved to quite good, with good looks at nearly all the specialty birds that we were looking for there. The big prize this year was pulling out a rare Dot-winged Crake for incredible looks near Punta Rasa - a bird that I hadn't seen at all in at least fifteen years! Woo hoo!! A close male Bearded Tachuri was right up there, too, but it's proving to be rather regular on this tour - but still thrilling when you find one. Bay-capped Wren-Spinetail, Hudson's Canastero, Olrog's Gull, and Curve-billed Reedhaunter were also high-quality finds this year, but there were many others, so read on.
Chubut Province was exciting as usual, providing us with numerous avian highlights as well as several excellent mammal encounters. The Southern Right Whale boat trip stands out as one of the supreme highlights of our stay here - I can't imagine seeing this leviathan any better than we did. Numerous Southern Elephant Seals, countless Guanacos, the strange Patagonian Cavy or Mara - all made our stay in the region so much richer. And the birds? How about the Punta Tombo Magellanic Penguin colony - with Lesser Rheas, Elegant Crested-Tinamous, and Brown Skuas thrown into the mix? And Argentine endemics like White-throated Cacholote, Patagonian Canastero, Rusty-backed Monjita, and Band-tailed Earthcreeper (almost endemic) - with Cinnamon Warbling-Finch, Carbonated Sierra-Finch, Hudson's Black-Tyrant, Black-crowned Monjita, and Sandy Gallito just to the north near Las Grutas. All kept us busy and excited throughout our stay in this arid region of northern Patagonia.
In the far south of the country, in Tierra del Fuego, we had quite a change of scenery. We went from one of the driest places in the country to one that probably never dries out. We also re-acquainted ourselves with trees down there, going from creosote flats to dark, tall forests of ancient Nothofagus. Targets going in were many, but we did very well indeed. Up at the top for me was finding a pair of rare White-bellied Seedsnipe up in the glacial valley above Ushuaia - a bird that I've only seen three times previously in almost twenty years of tours there! Our adult King Penguin standing among the growing colony of Gentoo Penguins in the Beagle Channel was right up there as well, seeing that it was the first time in about fifteen years that I'd seen one here. As with our previous venues, there were lots of other highlights that you'll have to discover for yourself later in this account.
We finished up our grand tour with a delightful stay in s. Santa Cruz Province. Scenery was again magnificent, with a memorable visit to Los Glaciares NP being most memorable. The views we had of the Perito Moreno Glacier were absolutely breathtaking! We all (yours truly excluded!) finally caught up with the magnificent Magellanic Woodpecker in the park, thanks to Martina's sharp eyes. And the unique Magellanic Plover finally presented itself to us after a long trek across the gravel at Lago Argentino. Condors again made an impression here, with nearly 20 birds being spotted in the air at one time near our estancia. And don't get me started on the food and the wine here! What a great place to wind up the trip.
Thanks to all of you for joining me for this journey to the southernmost reaches of South America. It was a blast for me to be able to guide for you during those sixteen bird-filled days. I've got to thank all of the great co-leaders that helped me during the tour - German, Mabel, Marcelo, and Martina - I owe all of them a debt of gratitude. All the best in birding for 2013 and I hope to see all of you again on another adventure sometime soon!
--Dave
KEYS FOR THIS LIST
One of the following keys may be shown in brackets for individual species as appropriate: * = heard only, I = introduced, E = endemic, N = nesting, a = austral migrant, b = boreal migrant
Rheidae (Rheas)

Arguably the fanciest of all tinamous, the Elegant Crested-Tinamou showed beautifully at Pta Tombo. (Photo by guide Dave Stejskal)
GREATER RHEA (Rhea americana) LESSER RHEA (DARWIN'S) (Rhea pennata pennata) [N]
Tinamidae (Tinamous)
DARWIN'S NOTHURA (Nothura darwinii)
SPOTTED NOTHURA (Nothura maculosa)
ELEGANT CRESTED-TINAMOU (Eudromia elegans) [N]
Anhimidae (Screamers)
SOUTHERN SCREAMER (Chauna torquata)
Anatidae (Ducks, Geese, and Waterfowl)
WHITE-FACED WHISTLING-DUCK (Dendrocygna viduata)
BLACK-BELLIED WHISTLING-DUCK (Dendrocygna autumnalis)
FULVOUS WHISTLING-DUCK (Dendrocygna bicolor)
BLACK-NECKED SWAN (Cygnus melancoryphus) [N]
COSCOROBA SWAN (Coscoroba coscoroba) [N]
UPLAND GOOSE (Chloephaga picta) [N]

A pair of Flightless Steamer-Ducks takes a stroll along the kelp-lined shore. (Photo by guide Dave Stejskal)
KELP GOOSE (Chloephaga hybrida) ASHY-HEADED GOOSE (Chloephaga poliocephala)
FLYING STEAMER-DUCK (Tachyeres patachonicus)
FLIGHTLESS STEAMER-DUCK (Tachyeres pteneres)
WHITE-HEADED STEAMER-DUCK (Tachyeres leucocephalus) [E]
CRESTED DUCK (Lophonetta specularioides)
SPECTACLED DUCK (Speculanas specularis)
BRAZILIAN TEAL (Amazonetta brasiliensis)

Our last day's visit to Laguna Nimez gave us our best looks at the lovely Silvery Grebe. (Photo by guide Dave Stejskal)
CHILOE WIGEON (Anas sibilatrix) CINNAMON TEAL (Anas cyanoptera)
RED SHOVELER (Anas platalea)
YELLOW-BILLED PINTAIL (Anas georgica) [N]
SILVER TEAL (Anas versicolor)
YELLOW-BILLED TEAL (FLAVIROSTRIS) (Anas flavirostris flavirostris) [N]
ROSY-BILLED POCHARD (Netta peposaca)
RUDDY DUCK (ANDEAN) (Oxyura jamaicensis ferruginea) [N]
LAKE DUCK (Oxyura vittata)
Podicipedidae (Grebes)
WHITE-TUFTED GREBE (Rollandia rolland)
GREAT GREBE (Podiceps major)
SILVERY GREBE (OCCIPITALIS) (Podiceps occipitalis occipitalis)
Phoenicopteridae (Flamingos)
CHILEAN FLAMINGO (Phoenicopterus chilensis)
Spheniscidae (Penguins)
KING PENGUIN (Aptenodytes patagonicus)
GENTOO PENGUIN (Pygoscelis papua)

The Magellanic Penguin in the foreground looks a little miffed about the colony of Gentoo Penguins that have taken over his turf. (Photo by guide Dave Stejskal)
MAGELLANIC PENGUIN (Spheniscus magellanicus) [N] Diomedeidae (Albatrosses)
BLACK-BROWED ALBATROSS (Thalassarche melanophris)
Procellariidae (Shearwaters and Petrels)
SOUTHERN GIANT-PETREL (Macronectes giganteus)
NORTHERN GIANT-PETREL (Macronectes halli)
SOUTHERN FULMAR (Fulmarus glacialoides)
CAPE PETREL (Daption capense)
Hydrobatidae (Storm-Petrels)
WILSON'S STORM-PETREL (Oceanites oceanicus)
Pelecanoididae (Diving-Petrels)
MAGELLANIC DIVING-PETREL (Pelecanoides magellani)
Ciconiidae (Storks)

The two species of giant-petrel can be tough to tell apart, but with looks like this, it's easy to see the light-colored bill tip that marks this as a Southern Giant-Petrel. (Photo by guide Dave Stejskal)
MAGUARI STORK (Ciconia maguari) Phalacrocoracidae (Cormorants and Shags)
NEOTROPIC CORMORANT (Phalacrocorax brasilianus)
MAGELLAN CORMORANT (Phalacrocorax magellanicus)
IMPERIAL CORMORANT (Phalacrocorax atriceps atriceps)
IMPERIAL CORMORANT (Phalacrocorax atriceps albiventer)
Ardeidae (Herons, Egrets, and Bitterns)
STRIPE-BACKED BITTERN (Ixobrychus involucris)
RUFESCENT TIGER-HERON (Tigrisoma lineatum)
COCOI HERON (Ardea cocoi)
GREAT EGRET (Ardea alba)
SNOWY EGRET (Egretta thula)
CATTLE EGRET (Bubulcus ibis)
STRIATED HERON (Butorides striata)
WHISTLING HERON (Syrigma sibilatrix)
BLACK-CROWNED NIGHT-HERON (Nycticorax nycticorax)
Threskiornithidae (Ibises and Spoonbills)
WHITE-FACED IBIS (Plegadis chihi)
BARE-FACED IBIS (Phimosus infuscatus)
BLACK-FACED IBIS (Theristicus melanopis) [N]
ROSEATE SPOONBILL (Platalea ajaja)
Cathartidae (New World Vultures)
TURKEY VULTURE (Cathartes aura)
ANDEAN CONDOR (Vultur gryphus)
Accipitridae (Hawks, Eagles, and Kites)
WHITE-TAILED KITE (Elanus leucurus)
SNAIL KITE (Rostrhamus sociabilis)
BLACK-CHESTED BUZZARD-EAGLE (Geranoaetus melanoleucus)
LONG-WINGED HARRIER (Circus buffoni)

A female Cinereous Harrier glides past at close quarters at Laguna Nimez. (Photo by guide Dave Stejskal)
CINEREOUS HARRIER (Circus cinereus) HARRIS'S HAWK (Parabuteo unicinctus)
ROADSIDE HAWK (Buteo magnirostris)
VARIABLE HAWK (VARIABLE) (Buteo polyosoma polyosoma) [N]
Falconidae (Falcons and Caracaras)
WHITE-THROATED CARACARA (Phalcoboenus albogularis)
SOUTHERN CARACARA (Caracara plancus)
CHIMANGO CARACARA (Milvago chimango)
AMERICAN KESTREL (Falco sparverius)
Rallidae (Rails, Gallinules, and Coots)
GIANT WOOD-RAIL (Aramides ypecaha)
GRAY-NECKED WOOD-RAIL (Aramides cajanea) [*]
DOT-WINGED CRAKE (Porzana spiloptera)
PLUMBEOUS RAIL (Pardirallus sanguinolentus)
COMMON GALLINULE (Gallinula galeata)
RED-GARTERED COOT (Fulica armillata) [N]
RED-FRONTED COOT (Fulica rufifrons)
WHITE-WINGED COOT (Fulica leucoptera)
Aramidae (Limpkin)
LIMPKIN (Aramus guarauna)
Chionidae (Sheathbills)
SNOWY SHEATHBILL (Chionis albus)
Charadriidae (Plovers and Lapwings)
SOUTHERN LAPWING (NORTHERN) (Vanellus chilensis cayennensis) [N]
SOUTHERN LAPWING (SOUTHERN SOUTH AMERICA) (Vanellus chilensis chilensis)
BLACK-BELLIED PLOVER (Pluvialis squatarola) [b]
AMERICAN GOLDEN-PLOVER (Pluvialis dominica) [b]
TWO-BANDED PLOVER (Charadrius falklandicus) [N]
SEMIPALMATED PLOVER (Charadrius semipalmatus) [b]
TAWNY-THROATED DOTTEREL (Oreopholus ruficollis) [N]
Pluvianellidae (Magellanic Plover)
MAGELLANIC PLOVER (Pluvianellus socialis)
Haematopodidae (Oystercatchers)
AMERICAN OYSTERCATCHER (Haematopus palliatus) [N]
BLACKISH OYSTERCATCHER (Haematopus ater)
MAGELLANIC OYSTERCATCHER (Haematopus leucopodus)
Recurvirostridae (Stilts and Avocets)

Ushuaia is the place for White-bellied Seedsnipe, the toughest of the seedsnipes to see, and even here it takes a lot of luck. That's what we had this trip, where we stupendous looks at a pair of these cryptic and beautiful birds! (Photo by guide Dave Stejskal)
BLACK-NECKED STILT (WHITE-BACKED) (Himantopus mexicanus melanurus) Jacanidae (Jacanas)
WATTLED JACANA (Jacana jacana)
Scolopacidae (Sandpipers and Allies)
GREATER YELLOWLEGS (Tringa melanoleuca) [b]
LESSER YELLOWLEGS (Tringa flavipes) [b]
HUDSONIAN GODWIT (Limosa haemastica) [b]
RUDDY TURNSTONE (Arenaria interpres) [b]
RED KNOT (Calidris canutus) [N]
SANDERLING (Calidris alba) [N]
WHITE-RUMPED SANDPIPER (Calidris fuscicollis) [N]
BAIRD'S SANDPIPER (Calidris bairdii) [N]
SOUTH AMERICAN SNIPE (MAGELLANIC) (Gallinago paraguaiae magellanica)
WILSON'S PHALAROPE (Phalaropus tricolor) [b]
Thinocoridae (Seedsnipes)
WHITE-BELLIED SEEDSNIPE (Attagis malouinus)
LEAST SEEDSNIPE (Thinocorus rumicivorus) [N]
Laridae (Gulls, Terns, and Skimmers)
BROWN-HOODED GULL (Chroicocephalus maculipennis) [N]
DOLPHIN GULL (Leucophaeus scoresbii)
OLROG'S GULL (Larus atlanticus)
KELP GULL (Larus dominicanus)
COMMON TERN (Sterna hirundo)
SOUTH AMERICAN TERN (Sterna hirundinacea)
SNOWY-CROWNED TERN (Sterna trudeaui)
ROYAL TERN (Thalasseus maximus)
SANDWICH TERN (CAYENNE) (Thalasseus sandvicensis eurygnathus)
BLACK SKIMMER (CINERASCENS) (Rynchops niger cinerascens)
BLACK SKIMMER (INTERCEDENS) (Rynchops niger intercedens)
Stercorariidae (Skuas and Jaegers)
CHILEAN SKUA (Stercorarius chilensis)
BROWN SKUA (FALKLAND) (Stercorarius antarcticus antarcticus)
Columbidae (Pigeons and Doves)

Burrowing Parakeets are highly social and colonial nesters; no other parrot species has larger nesting colonies. One colony in Patagonia is estimated to hold 35,000 breeding pairs! We didn't see quite that many, but they were still pretty common in areas. (Photo by guide Dave Stejskal)
ROCK PIGEON (Columba livia) [I] PICAZURO PIGEON (Patagioenas picazuro)
SPOT-WINGED PIGEON (Patagioenas maculosa)
EARED DOVE (Zenaida auriculata)
PICUI GROUND-DOVE (Columbina picui)
WHITE-TIPPED DOVE (Leptotila verreauxi)
Psittacidae (Parrots)
NANDAY PARAKEET (Nandayus nenday) [I]
BURROWING PARAKEET (Cyanoliseus patagonus)
AUSTRAL PARAKEET (Enicognathus ferrugineus)
MONK PARAKEET (Myiopsitta monachus)
Cuculidae (Cuckoos)
GUIRA CUCKOO (Guira guira)
Strigidae (Owls)
AUSTRAL PYGMY-OWL (Glaucidium nana)
BURROWING OWL (Athene cunicularia)
Trochilidae (Hummingbirds)
GLITTERING-BELLIED EMERALD (Chlorostilbon aureoventris)
WHITE-THROATED HUMMINGBIRD (Leucochloris albicollis)
GILDED HUMMINGBIRD (Hylocharis chrysura)
Picidae (Woodpeckers)
CHECKERED WOODPECKER (Veniliornis mixtus)
GREEN-BARRED WOODPECKER (Colaptes melanochloros melanolaimus)
CHILEAN FLICKER (Colaptes pitius)
CAMPO FLICKER (Colaptes campestris)
MAGELLANIC WOODPECKER (Campephilus magellanicus) [N]
Furnariidae (Ovenbirds and Woodcreepers)

Band-tailed Earthcreepers might not be much to look at, but they are nearly endemic to Argentina. (Photo by guide Dave Stejskal)
COMMON MINER (Geositta cunicularia) BAND-TAILED EARTHCREEPER (Ochetorhynchus phoenicurus) [E]
SCALE-THROATED EARTHCREEPER (Upucerthia dumetaria) [N]
BUFF-WINGED CINCLODES (Cinclodes fuscus)
DARK-BELLIED CINCLODES (Cinclodes patagonicus)
RUFOUS HORNERO (Furnarius rufus)
CURVE-BILLED REEDHAUNTER (Limnornis curvirostris)
WREN-LIKE RUSHBIRD (Phleocryptes melanops)
THORN-TAILED RAYADITO (Aphrastura spinicauda)
TUFTED TIT-SPINETAIL (Leptasthenura platensis)
PLAIN-MANTLED TIT-SPINETAIL (PALLIDA) (Leptasthenura aegithaloides pallida)
BAY-CAPPED WREN-SPINETAIL (Spartonoica maluroides)
CHOTOY SPINETAIL (Schoeniophylax phryganophilus)
PALE-BREASTED SPINETAIL (Synallaxis albescens)
SPIX'S SPINETAIL (Synallaxis spixi)
SULPHUR-THROATED SPINETAIL (Cranioleuca sulphurifera)
STRIPE-CROWNED SPINETAIL (Cranioleuca pyrrhophia)
HUDSON'S CANASTERO (Asthenes hudsoni)
CORDILLERAN CANASTERO (Asthenes modesta)
SHARP-BILLED CANASTERO (Asthenes pyrrholeuca)

The delightful Bearded Tachuri is still a relatively poorly-known species, but the Buenos Aires region in proving to be a pretty reliable place to track one down. (Photo by guide Dave Stejskal)
PATAGONIAN CANASTERO (Pseudasthenes patagonica) [E] FRECKLE-BREASTED THORNBIRD (Phacellodomus striaticollis)
FIREWOOD-GATHERER (Anumbius annumbi)
BROWN CACHOLOTE (Pseudoseisura lophotes)
WHITE-THROATED CACHOLOTE (Pseudoseisura gutturalis) [E]
WHITE-THROATED TREERUNNER (Pygarrhichas albogularis)
NARROW-BILLED WOODCREEPER (Lepidocolaptes angustirostris)
Thamnophilidae (Typical Antbirds)
RUFOUS-CAPPED ANTSHRIKE (Thamnophilus ruficapillus) [N]
Rhinocryptidae (Tapaculos)
SANDY GALLITO (Teledromas fuscus) [E]
Tyrannidae (Tyrant Flycatchers)
YELLOW-BILLED TIT-TYRANT (Anairetes flavirostris)
TUFTED TIT-TYRANT (Anairetes parulus)
BEARDED TACHURI (Polystictus pectoralis)
WARBLING DORADITO (Pseudocolopteryx flaviventris)
WHITE-CRESTED ELAENIA (Elaenia albiceps)
SMALL-BILLED ELAENIA (Elaenia parvirostris)
SOOTY TYRANNULET (Serpophaga nigricans)
WHITE-CRESTED TYRANNULET (Serpophaga subcristata)
STRANECK'S TYRANNULET (Serpophaga griseicapilla)
SOUTHERN SCRUB-FLYCATCHER (Sublegatus modestus)
MANY-COLORED RUSH TYRANT (Tachuris rubrigastra)
GREATER WAGTAIL-TYRANT (Stigmatura budytoides)

Ground-Tyrants are birds of windswept, open country, something Southern Argentina is full of. This is the dapper Ochre-naped Ground-Tyrant. (Photo by guide Dave Stejskal)
BRAN-COLORED FLYCATCHER (Myiophobus fasciatus) EULER'S FLYCATCHER (Lathrotriccus euleri) [*]
VERMILION FLYCATCHER (Pyrocephalus rubinus)
AUSTRAL NEGRITO (Lessonia rufa)
HUDSON'S BLACK-TYRANT (Knipolegus hudsoni)
WHITE-WINGED BLACK-TYRANT (Knipolegus aterrimus)
SPECTACLED TYRANT (Hymenops perspicillatus)
YELLOW-BROWED TYRANT (Satrapa icterophrys)
OCHRE-NAPED GROUND-TYRANT (Muscisaxicola flavinucha)
DARK-FACED GROUND-TYRANT (Muscisaxicola maclovianus)
WHITE-BROWED GROUND-TYRANT (Muscisaxicola albilora)
CINNAMON-BELLIED GROUND-TYRANT (Muscisaxicola capistratus)
GRAY-BELLIED SHRIKE-TYRANT (Agriornis micropterus)
LESSER SHRIKE-TYRANT (Agriornis murinus)
FIRE-EYED DIUCON (Xolmis pyrope)
BLACK-CROWNED MONJITA (Xolmis coronatus)
WHITE MONJITA (Xolmis irupero)
RUSTY-BACKED MONJITA (Xolmis rubetra) [E]
CHOCOLATE-VENTED TYRANT (Neoxolmis rufiventris)
CATTLE TYRANT (Machetornis rixosa)
SWAINSON'S FLYCATCHER (Myiarchus swainsoni)
GREAT KISKADEE (Pitangus sulphuratus)
STREAKED FLYCATCHER (Myiodynastes maculatus)

Monjitas are a wonderful group of birds restricted to southern South America. Black and white are the predominate colors on most of them, with this Rusty-backed Monjita being the most colorful exception. (Photo by guide Dave Stejskal)
TROPICAL KINGBIRD (Tyrannus melancholicus) FORK-TAILED FLYCATCHER (Tyrannus savana)
Cotingidae (Cotingas)
WHITE-TIPPED PLANTCUTTER (Phytotoma rutila)
RUFOUS-TAILED PLANTCUTTER (Phytotoma rara)
Vireonidae (Vireos)
RED-EYED VIREO (Vireo olivaceus)
RUFOUS-BROWED PEPPERSHRIKE (Cyclarhis gujanensis) [*]
Hirundinidae (Swallows)
BLUE-AND-WHITE SWALLOW (PATAGONICA) (Pygochelidon cyanoleuca patagonica)
GRAY-BREASTED MARTIN (Progne chalybea)
SOUTHERN MARTIN (Progne elegans)
BROWN-CHESTED MARTIN (FUSCA) (Progne tapera fusca)
WHITE-RUMPED SWALLOW (Tachycineta leucorrhoa)
CHILEAN SWALLOW (Tachycineta meyeni)
BANK SWALLOW (Riparia riparia)
BARN SWALLOW (Hirundo rustica)
CLIFF SWALLOW (Petrochelidon pyrrhonota)
Troglodytidae (Wrens)
HOUSE WREN (SOUTHERN) (Troglodytes aedon musculus)
SEDGE WREN (PLATENSIS GROUP) (Cistothorus platensis platensis)
Polioptilidae (Gnatcatchers)
MASKED GNATCATCHER (Polioptila dumicola dumicola) [N]
Turdidae (Thrushes and Allies)
AUSTRAL THRUSH (Turdus falcklandii)
RUFOUS-BELLIED THRUSH (Turdus rufiventris)
CREAMY-BELLIED THRUSH (Turdus amaurochalinus)
CHIGUANCO THRUSH (Turdus chiguanco)
Mimidae (Mockingbirds and Thrashers)
PATAGONIAN MOCKINGBIRD (Mimus patagonicus) [N]
CHALK-BROWED MOCKINGBIRD (Mimus saturninus)
WHITE-BANDED MOCKINGBIRD (Mimus triurus)
Sturnidae (Starlings)
EUROPEAN STARLING (Sturnus vulgaris) [I]
Motacillidae (Wagtails and Pipits)

It was great to see males of both morphs of Yellow-bridled Finch for side by side comparison this year. This is a male of the blue morph, along with his mate. (Photo by guide Dave Stejskal)
SHORT-BILLED PIPIT (Anthus furcatus) CORRENDERA PIPIT (Anthus correndera)
HELLMAYR'S PIPIT (Anthus hellmayri brasilianus)
Parulidae (New World Warblers)
MASKED YELLOWTHROAT (Geothlypis aequinoctialis)
TROPICAL PARULA (Setophaga pitiayumi)
GOLDEN-CROWNED WARBLER (Basileuterus culicivorus)
Thraupidae (Tanagers and Allies)
BLUE-AND-YELLOW TANAGER (Thraupis bonariensis)
GOLDEN-BILLED SALTATOR (Saltator aurantiirostris)
Emberizidae (Buntings, Sparrows and Allies)
GRAY-HOODED SIERRA-FINCH (Phrygilus gayi)
PATAGONIAN SIERRA-FINCH (Phrygilus patagonicus)
MOURNING SIERRA-FINCH (Phrygilus fruticeti)
CARBONATED SIERRA-FINCH (Phrygilus carbonarius) [E]
COMMON DIUCA-FINCH (Diuca diuca)
YELLOW-BRIDLED FINCH (Melanodera xanthogramma)
LONG-TAILED REED FINCH (Donacospiza albifrons)
CINNAMON WARBLING-FINCH (Poospiza ornata) [E]
BLACK-AND-RUFOUS WARBLING-FINCH (Poospiza nigrorufa)
RINGED WARBLING-FINCH (Poospiza torquata)
DOUBLE-COLLARED SEEDEATER (Sporophila caerulescens)
PATAGONIAN YELLOW-FINCH (Sicalis lebruni)
SAFFRON FINCH (Sicalis flaveola)
GRASSLAND YELLOW-FINCH (GRASSLAND) (Sicalis luteola luteiventris)
GREAT PAMPA-FINCH (Embernagra platensis platensis)
RED-CRESTED CARDINAL (Paroaria coronata)
GRASSLAND SPARROW (Ammodramus humeralis) [*]
RUFOUS-COLLARED SPARROW (Zonotrichia capensis)
Icteridae (Troupials and Allies)
WHITE-BROWED BLACKBIRD (Sturnella superciliaris)
LONG-TAILED MEADOWLARK (Sturnella loyca)
AUSTRAL BLACKBIRD (Curaeus curaeus)
SCARLET-HEADED BLACKBIRD (Amblyramphus holosericeus)
YELLOW-WINGED BLACKBIRD (Agelasticus thilius)
BROWN-AND-YELLOW MARSHBIRD (Pseudoleistes virescens)
BAY-WINGED COWBIRD (Agelaioides badius)
SCREAMING COWBIRD (Molothrus rufoaxillaris)
SHINY COWBIRD (Molothrus bonariensis)
SOLITARY BLACK CACIQUE (Cacicus solitarius) [*]
Fringillidae (Siskins, Crossbills, and Allies)
HOODED SISKIN (Spinus magellanicus)
BLACK-CHINNED SISKIN (Spinus barbatus)
Passeridae (Old World Sparrows)
HOUSE SPARROW (Passer domesticus) [I]
BIG HAIRY ARMADILLO (Chaetophractus villosus)
OLD WORLD RABBIT (Oryctolagus cuniculus)
CAPE HARE (Lepus capensis)
SOUTHERN CAVY (Microcavia australis)
GUINEA PIG (Cavia aperea)
PATAGONIAN CAVY (Dolichotis patagonum) [E]
NUTRIA (Myocastor coypus)
SHORT-BEAKED COMMON DOLPHIN (Delphinus delphis)
DUSKY DOLPHIN (Lagenorhynchus obscurus)
SOUTHERN RIGHT WHALE (Eubalaena australis)
SOUTHERN GRAY FOX (Pseudalopex griseus)
CULPEO FOX (Pseudalopex culpaeus)
SOUTHERN SEA LION (Otaria byronia)
SOUTHERN ELEPHANT SEAL (Mirounga leonina)
GUANACO (Lama guanicoe)
Totals for the tour: 273 bird taxa and 15 mammal taxa