This National Park (Km mark 302) is located near the town of La Coronilla (Km mark 314). There are several places to stay in town although most are located almost 2km away on the coast. We stayed at a hotel (500 pesos for a double room with great breakfast) to the right of another hotel called Castello del Mare (800 pesos). The area around the hotel had some good birds incluing Rufous-capped Antshrike, Chicli Spinetail, Epaulet Oriole and Whistling Herons in a damp field on the way to town. A walk along the beach turned up Grey-hood Gull, Yellow-billed & Snowy-crowned Terns. The national park was reached by bus which left at 9:45. On the left is the national park and on the right a road to Laguna Negra 2-3 km away. In the park is a bird hide over the small Laguna Peņa where there was Giant Wood-Rail, Southern Screamer, Brazilian Teal plus Capybaras. From the highway to Laguna Negra is 3-4km but most of the area by the lake has been grazed. Areas of long grass and marsh are in the Baņados de Santa Teresa visible from the road to to the lake but not accesable. The best areas of the park are apparently accessed by boat where Black-and-white Monjitas and Saffron-cowled Blackbird occur. I saw neither. I saw Grea Rhea on the bus ride to from Montevideo to La Coronilla west of Santa Teresa.
| Greater Rhea | Rhea americana | Near-threatened Seen on the way to La Coronilla |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Whistling Heron | Syrigma sibilatrix | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Plumbeous Ibis | Theristicus caerulescens | |
| White-faced Ibis | Plegadis chihi | |
| Southern Screamer | Chauna torquata | |
| Brazilian Teal | Amazonetta brasiliensis | |
| Speckled Teal | Anas flavirostris | |
| Yellow-billed Pintail | Anas georgica | Seen on the way to La Coronilla |
| Turkey Vulture | Cathartes aura | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| Long-winged Harrier | Circus buffoni | |
| Cinereous Harrier | Circus cinereus | |
| Roadside Hawk | Buteo magnirostris | |
| Southern Caracara | Caracara plancus | |
| Yellow-headed Caracara | Milvago chimachima | |
| Chimango Caracara | Milvago chimango | |
| American Kestrel | Falco sparverius | |
| Giant Wood-Rail | Aramides ypecaha | |
| Common Moorhen | Gallinula chloropus | |
| Wattled Jacana | Jacana jacana | |
| American Oystercatcher | Haematopus palliatus | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| Collared Plover | Charadrius collaris | |
| Greater Yellowlegs | Tringa melanoleuca | |
| Kelp Gull | Larus dominicanus | |
| Gray-headed Gull | Larus cirrocephalus | |
| Brown-hooded Gull | Larus maculipennis | |
| Snowy-crowned Tern | Sterna trudeaui | |
| Yellow-billed Tern | Sterna superciliaris | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Spot-winged Pigeon | Patagioenas maculosa | |
| Eared Dove | Zenaida auriculata | |
| White-tipped Dove | Leptotila verreauxi | |
| Monk Parakeet | Myiopsitta monachus | Seen on the way to La Coronilla |
| Guira Cuckoo | Guira guira | |
| White-throated Hummingbird | Leucochloris albicollis | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Campo Flicker | Colaptes campestris | |
| Rufous Hornero | Furnarius rufus | |
| Chicli Spinetail | Synallaxis spixi | |
| Freckle-breasted Thornbird | Phacellodomus striaticollis | |
| Firewood-gatherer | Anumbius annumbi | |
| Rufous-capped Antshrike | Thamnophilus ruficapillus | |
| White Monjita | Xolmis irupero | |
| Austral Negrito | Lessonia rufa | |
| Spectacled Tyrant ? | Hymenops perspicillatus | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Blue-and-white Swallow | Pygochelidon cyanoleuca | |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Blue-and-yellow Tanager | Thraupis bonariensis | |
| Diademed Tanager | Stephanophorus diadematus | |
| Long-tailed Reed-Finch | Donacospiza albifrons | |
| Black-and-rufous Warbling-Finch | Poospiza nigrorufa | |
| Saffron Finch | Sicalis flaveola | |
| Great Pampa-Finch | Embernagra platensis | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Shiny Cowbird | Molothrus bonariensis | |
| Epaulet Oriole | Icterus cayanensis | |
| Brown-and-yellow Marshbird | Pseudoleistes virescens | |
| Hooded Siskin | Carduelis magellanica | |
| House Sparrow | Passer domesticus | Introduced species |
The town of Chuy is on the Brazilian birder and has a few places to stay. We stayed at a place 1 block from the plaza which was 150 pesos for a double. 8.5km north of the town is the historical fortress of San Miguel. Buses for 18 de Julio leave town regularly and pass Fuerte de San Miguel. Before the fort, there is a bridge over a large river and wetland that is visible from the bridge itself of from a hide on the far side. Blue-billed Black-Tyrant, Snail Kite and Rufescent Tiger-Heron were seen here. Heading towards the fort and before the bridge is a right turn. Along here was excellent birding. On the left in a marshy area near the fence was a Pinnated Bittern. On the road towards the fort birding is good also between the 3 and 5km marks. At 3km was a left turn where there was a small rubbish dump. Here was Chestnut-capped Blackbird and Double-collared Seedeater. At km4 on the right were many Screaming Cowbirds and in the field behind, many White-faced Ibis with a single Roseate Spoonbill.
| Pied-billed Grebe | Podilymbus podiceps | |
| Whistling Heron | Syrigma sibilatrix | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Black-crowned Night-Heron | Nycticorax nycticorax | |
| Rufescent Tiger-Heron | Tigrisoma lineatum | |
| Pinnated Bittern | Botaurus pinnatus | |
| Maguari Stork | Ciconia maguari | |
| Plumbeous Ibis | Theristicus caerulescens | |
| Bare-faced Ibis | Phimosus infuscatus | |
| White-faced Ibis | Plegadis chihi | |
| Roseate Spoonbill | Platalea ajaja | |
| Southern Screamer | Chauna torquata | |
| Brazilian Teal | Amazonetta brasiliensis | |
| Speckled Teal | Anas flavirostris | |
| Silver Teal | Anas versicolor | |
| Turkey Vulture | Cathartes aura | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| White-tailed Kite | Elanus leucurus | |
| Snail Kite | Rostrhamus sociabilis | |
| Long-winged Harrier | Circus buffoni | |
| Roadside Hawk | Buteo magnirostris | |
| White-tailed Hawk ? | Buteo albicaudatus | |
| Southern Caracara | Caracara plancus | |
| Yellow-headed Caracara | Milvago chimachima | |
| Chimango Caracara | Milvago chimango | |
| American Kestrel | Falco sparverius | |
| Aplomado Falcon | Falco femoralis | |
| Limpkin | Aramus guarauna | |
| Spot-flanked Gallinule | Gallinula melanops | |
| Wattled Jacana | Jacana jacana | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| South American Snipe | Gallinago paraguaiae | |
| Brown-hooded Gull | Larus maculipennis | |
| Royal Tern | Sterna maxima | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Eared Dove | Zenaida auriculata | |
| Picui Ground-Dove | Columbina picui | |
| Monk Parakeet | Myiopsitta monachus | |
| Guira Cuckoo | Guira guira | |
| Burrowing Owl | Athene cunicularia | |
| Ringed Kingfisher | Ceryle torquata | |
| White-spotted Woodpecker | Veniliornis spilogaster | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Campo Flicker | Colaptes campestris | |
| Rufous Hornero | Furnarius rufus | |
| Stripe-crowned Spinetail | Cranioleuca pyrrhophia | |
| Freckle-breasted Thornbird | Phacellodomus striaticollis | Only heard |
| Firewood-gatherer | Anumbius annumbi | |
| Rufous-capped Antshrike | Thamnophilus ruficapillus | |
| Sooty Tyrannulet | Serpophaga nigricans | |
| White Monjita | Xolmis irupero | |
| Blue-billed Black-Tyrant | Knipolegus cyanirostris | |
| Spectacled Tyrant | Hymenops perspicillatus | |
| Yellow-browed Tyrant | Satrapa icterophrys | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| White-rumped Swallow | Tachycineta leucorrhoa | |
| Blue-and-white Swallow | Pygochelidon cyanoleuca | |
| Bank Swallow ? | Riparia riparia | |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Tropical Parula | Parula pitiayumi | |
| Golden-crowned Warbler | Basileuterus culicivorus | |
| Diademed Tanager | Stephanophorus diadematus | |
| Black-and-rufous Warbling-Finch | Poospiza nigrorufa | |
| Rusty-collared Seedeater | Sporophila collaris | |
| Double-collared Seedeater ? | Sporophila caerulescens | |
| Saffron Finch | Sicalis flaveola | |
| Red-crested Cardinal | Paroaria coronata | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Yellow-winged Blackbird | Agelaius thilius | |
| Chestnut-capped Blackbird | Agelaius ruficapillus | |
| Bay-winged Cowbird | Molothrus badius | |
| Screaming Cowbird | Molothrus rufoaxillaris | |
| Shiny Cowbird | Molothrus bonariensis | |
| Hooded Siskin | Carduelis magellanica | |
| European Goldfinch | Carduelis carduelis | Introduced species |
| House Sparrow | Passer domesticus | Introduced species |
Laguna de Rocha can be accessed from Rocha or better from La Paloma. La Paloma is easily reached though by regular buses from Rocha. Both places have a number of places to stay. The cheapest place we could find in Rocha was Hotel Municial 1 block South of the plaza with a double for 420 including breakfast. From La Paloma there is a track to the lake but it doesn't seem passable in a car, instead take a turning a few kms north of La Paloma on Route 15. If walking from La Paloma it seemed about 10km. The track runs parrallel with the beach but winds a bit. Some areas of dunes, scrub and small marshes had a few birds. Once you reach sight of the lake, you can either walk along the shore or follow the road along. Between the lake shore and the road are some good boggy areas. At the 'Cabito' or the point at the end there is a hide with a view over the lake and where it empties out into the sea. Here U saw several species of gull, tern and wading birds aswell as 40 or more Chilean Flamingos on the other side. Rufous-throated Sapphire was seen in the garden of a house on the way back that had many red flowers.
| Spotted Nothura | Nothura maculosa | |
| Great Grebe | Podiceps major | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Whistling Heron | Syrigma sibilatrix | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Maguari Stork | Ciconia maguari | |
| Plumbeous Ibis | Theristicus caerulescens | |
| Bare-faced Ibis | Phimosus infuscatus | |
| White-faced Ibis | Plegadis chihi | |
| Chilean Flamingo | Phoenicopterus chilensis | Near-threatened |
| Southern Screamer | Chauna torquata | |
| Black-necked Swan | Cygnus melanocorypha | |
| Coscoroba Swan | Coscoroba coscoroba | |
| Brazilian Teal | Amazonetta brasiliensis | |
| Speckled Teal | Anas flavirostris | |
| Yellow-billed Pintail | Anas georgica | |
| Silver Teal | Anas versicolor | |
| Lake Duck | Oxyura vittata | |
| Roadside Hawk | Buteo magnirostris | |
| Southern Caracara | Caracara plancus | |
| Chimango Caracara | Milvago chimango | |
| American Kestrel | Falco sparverius | |
| Limpkin | Aramus guarauna | |
| Giant Wood-Rail | Aramides ypecaha | |
| Common Moorhen | Gallinula chloropus | |
| Red-gartered Coot | Fulica armillata | |
| American Oystercatcher | Haematopus palliatus | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| Semipalmated Plover | Charadrius semipalmatus | |
| Collared Plover | Charadrius collaris | |
| Two-banded Plover | Charadrius falklandicus | |
| Rufous-chested Dotterel | Charadrius modestus | |
| South American Snipe | Gallinago paraguaiae | |
| Greater Yellowlegs | Tringa melanoleuca | |
| Lesser Yellowlegs ? | Tringa flavipes | |
| Kelp Gull | Larus dominicanus | |
| Gray-headed Gull | Larus cirrocephalus | |
| Brown-hooded Gull | Larus maculipennis | |
| Royal Tern | Sterna maxima | |
| South American Tern ? | Sterna hirundinacea | |
| Snowy-crowned Tern | Sterna trudeaui | |
| Yellow-billed Tern | Sterna superciliaris | |
| Black Skimmer | Rynchops niger | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Spot-winged Pigeon | Patagioenas maculosa | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Monk Parakeet | Myiopsitta monachus | |
| Guira Cuckoo | Guira guira | |
| Rufous-throated Sapphire | Hylocharis | |
| Rufous-throated Sapphire | Hylocharis | |
| White-throated Hummingbird | Leucochloris albicollis | |
| Amazon Kingfisher | Chloroceryle amazona | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Bar-winged Cinclodes ? | Cinclodes fuscus | |
| Rufous Hornero | Furnarius rufus | |
| Wren-like Rushbird | Phleocryptes melanops | Only heard |
| Chicli Spinetail ? | Synallaxis spixi | |
| Freckle-breasted Thornbird | Phacellodomus striaticollis | Only heard |
| Sooty Tyrannulet | Serpophaga nigricans | |
| White-crested Tyrannulet | Serpophaga subcristata | |
| Gray Monjita | Xolmis cinerea | |
| White Monjita | Xolmis irupero | |
| Dark-faced Ground-Tyrant | Muscisaxicola macloviana | |
| Austral Negrito | Lessonia rufa | |
| Spectacled Tyrant ? | Hymenops perspicillatus | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Blue-and-white Swallow | Pygochelidon cyanoleuca | |
| House Wren | Troglodytes aedon | |
| White-banded Mockingbird | Mimus triurus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Tropical Parula | Parula pitiayumi | |
| Long-tailed Reed-Finch | Donacospiza albifrons | |
| Black-and-rufous Warbling-Finch | Poospiza nigrorufa | |
| Saffron Finch | Sicalis flaveola | |
| Great Pampa-Finch | Embernagra platensis | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Yellow-winged Blackbird | Agelaius thilius | |
| Bay-winged Cowbird | Molothrus badius | |
| Brown-and-yellow Marshbird | Pseudoleistes virescens | |
| Hooded Siskin | Carduelis magellanica | |
| European Goldfinch | Carduelis carduelis | Introduced species |
| House Sparrow | Passer domesticus | Introduced species |