Compared to other South American countries, a casual birding trip here is more difficult due to lack of infrastructure and informations. Very few birding reports are available online for the country. I recommending contacting the following people and organizations who can provide good advice on where and how to go.
This site is in easy reach of the city centre and has many waterbirds especially). I went there with Guira Paraguay but it should be quite easy to take a taxi or bus to the junction and walk. The dirt road to the site however passes through a poor area and although is not necessarily dangerous, it is an unpleasant 3km walk. There may also be a boat leaving from the port to the boat club. A number of waders and other waterbirds including an unusual siting of Stilt Snadpipers and Red Shovelers. Yellowish Pipit is common and we also saw Nacunda Nighthawk. It may be a good idea to take wellington boots.
| Pied-billed Grebe | Podilymbus podiceps | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Red Shoveler | Anas platalea | |
| Black Vulture | Coragyps atratus | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| Osprey | Pandion haliaetus | |
| White-tailed Kite | Elanus leucurus | |
| Roadside Hawk | Buteo magnirostris | |
| Southern Caracara | Caracara plancus | |
| Aplomado Falcon | Falco femoralis | |
| Limpkin | Aramus guarauna | |
| Common Moorhen | Gallinula chloropus | |
| White-winged Coot | Fulica leucoptera | |
| Wattled Jacana | Jacana jacana | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| Collared Plover | Charadrius collaris | |
| Lesser Yellowlegs | Tringa flavipes | |
| White-rumped Sandpiper | Calidris fuscicollis | |
| Stilt Sandpiper | Calidris himantopus | |
| Yellow-billed Tern | Sterna superciliaris | |
| Large-billed Tern | Phaetusa simplex | |
| Black Skimmer | Rynchops niger | |
| Rock Pigeon | Columba livia | Introduced species |
| Eared Dove | Zenaida auriculata | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Monk Parakeet | Myiopsitta monachus | |
| Blue-winged Parrotlet | Forpus xanthopterygius | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Striped Cuckoo | Tapera naevia | Heard only |
| Nacunda Nighthawk | Podager nacunda | |
| Glittering-bellied Emerald | Chlorostilbon aureoventris | |
| Ringed Kingfisher | Ceryle torquatus | |
| Yellow-chinned Spinetail | Certhiaxis cinnamomea | Heard only |
| Barred Antshrike | Thamnophilus doliatus | Heard only |
| White Monjita | Xolmis irupero | |
| Spectacled Tyrant | Hymenops perspicillatus | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Yellowish Pipit | Anthus lutescens | |
| White-banded Mockingbird | Mimus triurus | |
| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Sayaca Tanager | Thraupis sayaca | |
| Rusty-collared Seedeater | Sporophila collaris | |
| Saffron Finch | Sicalis flaveola | |
| Yellow-billed Cardinal | Paroaria capitata | |
| Grassland Sparrow | Ammodramus humeralis | |
| Rufous-collared Sparrow | Zonotrichia capensis | Heard only |
| Unicolored Blackbird | Agelasticus cyanopus | |
| White-browed Blackbird | Sturnella superciliaris | |
| Shiny Cowbird | Molothrus bonariensis | |
| Hooded Siskin | Carduelis magellanica | |
| House Sparrow | Passer domesticus | Introduced species |
This site is managed by Fundacion Moises Bertoni and visits must be coordinated through them. See the above contact details. 2 buses a day leave to Villa Ygatimi (the nearest town) from the bus terminal in Asuncion. The Canindeyu bus company service leaves at 2pm and arrives at 9 or 10pm depending on road conditions. The San Jorge bus company service leaves at 10pm and arrives at about 7am the next morning. The price is about 45000 guarani per person. Services return at 6pm and 8pm arriving very early in the morning back in Asuncion. A bus may also leave Villa Ygatimi early in the morning. On reaching Villa Ygatimi we asked directions to the office of FMB which is well known. We coordinated transport from Villa Ygatimi to the reserve and back through FMB. We paid $15 in total for this. The entrance fee into the reserve (payable just once) was $5 per person and it was $15 per person per night to stay in the reserve. We stayed 2 nights at the Jejuimi guard post which is also the headquarters for the reserve and 1 night at the Aguara Nyu post about 40km away on the other side of the reserve. We were not charged for transport to Aguara Nyu and back. The head forest guard was called Don Tito. He and all the other staff were very friendly and helpful. It is necessary to hire a guide through FMB which also costs $20 per day. Freddie guided us and was very knowledgeable about the birds but spoke no English. The clearing around the Jejuimi guard post was good for birds in the early morning. The road towards Aguara Nyu was good for birds especially between km2 and km4. There were also a couple of trails, one leading from about 50m along this road and 1 leading from km2. The area around Aguara Nyu was not forest but Cerrado and had completely different birds including White-banded Tanagers. 13km from Jejuimi is a lake called Lagunita that was almost dry when we were there. The forst here and nearby has Bare-throated Bellbird which was easy to hear but very difficult to find even when standing below the tree they are in.
| Greater Rhea | Rhea americana | Near-threatened |
| Undulated Tinamou | Crypturellus undulatus | Heard only |
| Tataupa Tinamou | Crypturellus tataupa | |
| Whistling Heron | Syrigma sibilatrix | |
| Rufescent Tiger-Heron | Tigrisoma lineatum | |
| Muscovy Duck | Cairina moschata | |
| Black Vulture | Coragyps atratus | |
| Turkey Vulture | Cathartes aura | |
| Snail Kite | Rostrhamus sociabilis | Seen on the way to Villa Ygatimi |
| Roadside Hawk | Buteo magnirostris | |
| White-tailed Hawk | Buteo albicaudatus | |
| American Kestrel | Falco sparverius | |
| Rusty-margined Guan | Penelope superciliaris | Heard only |
| Limpkin | Aramus guarauna | Seen on the way to Villa Ygatimi |
| Wattled Jacana | Jacana jacana | |
| Southern Lapwing | Vanellus chilensis | |
| Scaled Pigeon | Patagioenas speciosa | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Ruddy Ground-Dove | Columbina talpacoti | |
| Scaled Dove | Columbina squammata | |
| White-tipped Dove | Leptotila verreauxi | |
| White-eyed Parakeet | Aratinga leucophthalmus | |
| Maroon-bellied Parakeet | Pyrrhura frontalis | |
| Blue-winged Parrotlet | Forpus xanthopterygius | |
| Scaly-headed Parrot | Pionus maximiliani | |
| Blue-fronted Parrot | Amazona aestiva | |
| Squirrel Cuckoo | Piaya cayana | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Pavonine Cuckoo | Dromococcyx pavoninus | Heard only |
| Tropical Screech-Owl | Megascops choliba | |
| Ferruginous Pygmy-Owl | Glaucidium brasilianum | Possibly heard |
| Black-throated Trogon | Trogon rufus | Heard only |
| Rufous-capped Motmot | Baryphthengus ruficapillus | |
| White-eared Puffbird | Nystalus chacuru | |
| Chestnut-eared Aracari | Pteroglossus castanotis | |
| Spot-billed Toucanet | Selenidera maculirostris | |
| Toco Toucan | Ramphastos toco | |
| Yellow-fronted Woodpecker | Melanerpes flavifrons | |
| Campo Flicker | Colaptes campestris | |
| Blond-crested Woodpecker | Celeus flavescens | |
| Rufous Hornero | Furnarius rufus | |
| Pale-breasted Spinetail | Synallaxis albescens | |
| Narrow-billed Woodcreeper | Lepidocolaptes angustirostris | |
| Spot-backed Antshrike | Hypoedaleus guttatus | |
| Plain Antvireo | Dysithamnus mentalis | |
| Rusty-backed Antwren | Formicivora rufa | |
| Bare-throated Bellbird | Procnias nudicollis | Vulnerable Heard only |
| Band-tailed Manakin | Pipra fasciicauda | |
| Tawny-crowned Pygmy-Tyrant | Euscarthmus meloryphus | |
| Eared Pygmy-Tyrant | Myiornis auricularis | |
| Streamer-tailed Tyrant | Gubernetes yetapa | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Three-striped Flycatcher | Conopias trivirgata | |
| Black-tailed Tityra | Tityra cayana | |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| Pale-breasted Thrush | Turdus leucomelas | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Purplish Jay | Cyanocorax cyanomelas | |
| Curl-crested Jay | Cyanocorax cristatellus | |
| Plush-crested Jay | Cyanocorax chrysops | |
| Golden-crowned Warbler | Basileuterus culicivorus | |
| White-banded Tanager | Neothraupis fasciata | Near-threatened |
| Magpie Tanager | Cissopis leveriana | |
| Black-goggled Tanager | Trichothraupis melanops | |
| Sayaca Tanager | Thraupis sayaca | |
| Red-crested Finch | Coryphospingus cucullatus | |
| Plumbeous Seedeater | Sporophila plumbea | |
| Rusty-collared Seedeater | Sporophila collaris | Possibly seen |
| Wedge-tailed Grass-Finch | Emberizoides herbicola | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Black-throated Saltator | Saltator atricollis | |
| Red-rumped Cacique | Cacicus haemorrhous |
We visited this reserve with Guyra Paraguay staff who were sorting out acquisition of land nearby. We stayed at the ProCOSARA part of the reserve where lodging is available from a nice Swiss couple. It was very reasonable at G50,000 per person per day with 3 meals included. In this area there are 2 trails through the forest as well as good birding along some of the roads and at a large lake. A tornado had just hit knocking down many trees and the lower trail next to the lake was partially inaccesible. The best species I saw here was the Saffron Toucanet which comes to feed on fruiting trees around the buildings. When we were there, they could be seen in the morning on the small trees next to the Guardabosque building but apparently they move trees according to the fruiting times. Also on the upper trail we saw Creamy-bellied Gnatcatcher and Bay-ringed Tyrannulet. To visit the reserve (that may become a national park in the next few year) contact ProCOSARA at prcosara@itacom.com.py or visit the website at www.procosara.de
| Spotted Nothura | Nothura maculosa | Seen on the way to San Rafael |
| Pied-billed Grebe | Podilymbus podiceps | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Cattle Egret | Bubulcus ibis | |
| Black-crowned Night-Heron | Nycticorax nycticorax | |
| Rufescent Tiger-Heron | Tigrisoma lineatum | |
| Black Vulture | Coragyps atratus | |
| Long-winged Harrier | Circus buffoni | |
| Savanna Hawk | Buteogallus meridionalis | |
| Roadside Hawk | Buteo magnirostris | |
| Black-and-white Hawk-Eagle | Spizastur melanoleucus | |
| Southern Caracara | Caracara plancus | |
| Yellow-headed Caracara | Milvago chimachima | |
| Chimango Caracara | Milvago chimango | Seen on the way to San Rafael |
| American Kestrel | Falco sparverius | |
| Spot-winged Wood-Quail | Odontophorus capueira | |
| Common Moorhen | Gallinula chloropus | |
| White-backed Stilt | Himantopus melanurus | Seen on the way to San Rafael |
| Southern Lapwing | Vanellus chilensis | |
| South American Snipe | Gallinago paraguaiae | |
| Rock Pigeon | Columba livia | Introduced species |
| Picazuro Pigeon | Patagioenas picazuro | |
| Eared Dove | Zenaida auriculata | |
| Ruddy Ground-Dove | Columbina talpacoti | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Gray-fronted Dove | Leptotila rufaxilla | Possibly heard |
| Yellow-chevroned Parakeet | Brotogeris chiriri | |
| Squirrel Cuckoo | Piaya cayana | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Pavonine Cuckoo | Dromococcyx pavoninus | Heard only |
| Burrowing Owl | Athene cunicularia | |
| Gray-rumped Swift | Chaetura cinereiventris | |
| Scale-throated Hermit | Phaethornis eurynome | |
| Plovercrest | Stephanoxis lalandi | |
| Surucua Trogon | Trogon surrucura | |
| Amazon Kingfisher | Chloroceryle amazona | |
| Saffron Toucanet | Baillonius bailloni | Near-threatened |
| Ochre-collared Piculet | Picumnus temminckii | |
| White Woodpecker | Melanerpes candidus | |
| White-spotted Woodpecker | Veniliornis spilogaster | |
| Green-barred Woodpecker | Colaptes melanochloros | Seen on the way to San Rafael |
| Campo Flicker | Colaptes campestris | |
| Rufous Hornero | Furnarius rufus | |
| Rufous-capped Spinetail | Synallaxis ruficapilla | |
| Gray-bellied Spinetail | Synallaxis cinerascens | |
| Buff-fronted Foliage-gleaner | Philydor rufus | Possibly seen |
| Ochre-breasted Foliage-gleaner | Philydor lichtensteini | |
| Thrush-like Woodcreeper | Dendrocincla turdina | |
| Olivaceous Woodcreeper | Sittasomus griseicapillus | |
| Lesser Woodcreeper | Xiphorhynchus fuscus | |
| Spot-backed Antshrike | Hypoedaleus guttatus | |
| Tufted Antshrike | Mackenziaena severa | |
| Variable Antshrike | Thamnophilus caerulescens | |
| Plain Antvireo | Dysithamnus mentalis | |
| Rufous-winged Antwren | Herpsilochmus rufimarginatus | |
| White-shouldered Fire-eye | Pyriglena leucoptera | |
| Short-tailed Antthrush | Chamaeza campanisona | Heard only |
| Rufous Gnateater | Conopophaga lineata | Possibly heard |
| Greenish Schiffornis | Schiffornis virescens | |
| Southern Beardless-Tyrannulet | Camptostoma obsoletum | |
| Yellow Tyrannulet | Capsiempis flaveola | |
| Gray Elaenia | Myiopagis caniceps | Possibly seen |
| White-crested Tyrannulet | Serpophaga subcristata | |
| Sepia-capped Flycatcher | Leptopogon amaurocephalus | |
| Bay-ringed Tyrannulet | Phylloscartes sylviolus | Near-threatened |
| Rough-legged Tyrannulet | Phyllomyias burmeisteri | Possibly seen |
| Eared Pygmy-Tyrant | Myiornis auricularis | |
| Drab-breasted Bamboo-Tyrant | Hemitriccus diops | |
| White-throated Spadebill | Platyrinchus mystaceus | |
| Cattle Tyrant | Machetornis rixosus | |
| Sirystes | Sirystes sibilator | Heard only |
| Great Kiskadee | Pitangus sulphuratus | |
| Social Flycatcher | Myiozetetes similis | |
| Yellowish Pipit | Anthus lutescens | |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Pale-breasted Thrush | Turdus leucomelas | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Creamy-bellied Gnatcatcher | Polioptila lactea | Near-threatened |
| Plush-crested Jay | Cyanocorax chrysops | |
| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Tropical Parula | Parula pitiayumi | |
| Golden-crowned Warbler | Basileuterus culicivorus | |
| White-rimmed Warbler | Basileuterus leucoblepharus | |
| Chestnut-vented Conebill | Conirostrum speciosum | |
| Chestnut-headed Tanager | Pyrrhocoma ruficeps | |
| Guira Tanager | Hemithraupis guira | |
| White-lined Tanager | Tachyphonus rufus | Possibly seen |
| Black-goggled Tanager | Trichothraupis melanops | |
| Red-crowned Ant-Tanager | Habia rubica | |
| Violaceous Euphonia | Euphonia violacea | |
| Saffron Finch | Sicalis flaveola | |
| White-browed Blackbird | Sturnella superciliaris | |
| Screaming Cowbird | Molothrus rufoaxillaris | Possibly seen |
| Red-rumped Cacique | Cacicus haemorrhous | |
| Yellow-rumped Marshbird | Pseudoleistes guirahuro | Seen on the way to San Rafael |
| Scarlet-headed Blackbird | Amblyramphus holosericeus | Seen on the way to San Rafael |
| Chopi Blackbird | Gnorimopsar chopi | |
| House Sparrow | Passer domesticus | Introduced species |
We visited this beautiful small town on the way back from San Rafael. It is about 50km from Asuncion and can be reached by bus via Ypacarai. There are several hotels, and we stayed at Hotel Balneareo on Asuncion which was G100,000 for a double. The town is very green and has many large trees and flowers with many hummers. A good area is on the hill where there is a platform with a big white statue. Around town, we birded 2 areas. La Gruta which is a private reserve 3km from town, back towards the main highway. buses pass along here. There is a big sign sayin Fraccion La Gruta. Turn left here (coming from town) and drive to the end of the bumpy road. Go through the archway and ask permission to bird the forest at the big house. The other site near town we visited was the Ycaparai National Park. This area is further around the lake from the town. It is about 5km from town and best reached in a taxi. Ask to go to Rio Salado and get off where you see good habitat. Some water birds can be seen around the lake. Better wetland habitat maybe found further along but we didn't get there.
| Least Grebe | Tachybaptus dominicus | |
| Whistling Heron | Syrigma sibilatrix | |
| Black Vulture | Coragyps atratus | |
| Snail Kite | Rostrhamus sociabilis | |
| Roadside Hawk | Buteo magnirostris | |
| Yellow-headed Caracara | Milvago chimachima | |
| Chimango Caracara | Milvago chimango | |
| Limpkin | Aramus guarauna | |
| Wattled Jacana | Jacana jacana | |
| Southern Lapwing | Vanellus chilensis | |
| Large-billed Tern | Phaetusa simplex | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Gray-fronted Dove | Leptotila rufaxilla | |
| Blue-winged Parrotlet | Forpus xanthopterygius | |
| Yellow-chevroned Parakeet | Brotogeris chiriri | |
| Scaly-headed Parrot | Pionus maximiliani | |
| Squirrel Cuckoo | Piaya cayana | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Striped Cuckoo h | Tapera naevia | |
| Glittering-bellied Emerald | Chlorostilbon aureoventris | |
| Gilded Sapphire | Hylocharis chrysura | |
| White-tailed Goldenthroat | Polytmus guainumbi | |
| White-barred Piculet | Picumnus cirratus | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Campo Flicker | Colaptes campestris | |
| Rufous Hornero | Furnarius rufus | |
| Greater Thornbird | Phacellodomus ruber | |
| Narrow-billed Woodcreeper | Lepidocolaptes angustirostris | |
| Barred Antshrike | Thamnophilus doliatus | |
| Variable Antshrike | Thamnophilus caerulescens | |
| Sooty Tyrannulet | Serpophaga nigricans | |
| Bran-colored Flycatcher | Myiophobus fasciatus | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Social Flycatcher | Myiozetetes similis | |
| Three-striped Flycatcher | Conopias trivirgata | |
| Gray-breasted Martin | Progne chalybea | |
| Thrush-like Wren | Campylorhynchus turdinus | |
| House Wren | Troglodytes aedon | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Plush-crested Jay | Cyanocorax chrysops | |
| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Masked Yellowthroat | Geothlypis aequinoctialis | |
| Golden-crowned Warbler | Basileuterus culicivorus | |
| Chestnut-vented Conebill | Conirostrum speciosum | |
| Ruby-crowned Tanager | Tachyphonus coronatus | Possibly seen |
| Red-crested Finch | Coryphospingus cucullatus | |
| Saffron Finch | Sicalis flaveola | |
| Red-crested Cardinal | Paroaria coronata | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Glaucous-blue Grosbeak | Cyanoloxia glaucocaerulea | Possibly seen |
| Screaming Cowbird | Molothrus rufoaxillaris | Possibly seen |
| Epaulet Oriole | Icterus cayanensis | |
| Red-rumped Cacique | Cacicus haemorrhous | |
| Scarlet-headed Blackbird | Amblyramphus holosericeus | |
| Hooded Siskin | Carduelis magellanica | |
| House Sparrow | Passer domesticus | Introduced species |
We took this trip also with Guyra Paraguay to help with a waterbird census. We drove long distances and saw most birds from the car. Buses do seem to pass through the good birding areas but infrequently. Pilar has several places to stay and eat. We stayed at the Hotel Apart Liza for G40,000 per person. Much of the area are wetlands with lakes and flooded fields. There are also good areas with long grass and some gallery forest.
| Greater Rhea | Rhea americana | Near-threatened |
| Red-winged Tinamou | Rhynchotus rufescens | |
| Pied-billed Grebe | Podilymbus podiceps | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Whistling Heron | Syrigma sibilatrix | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Cattle Egret | Bubulcus ibis | |
| Black-crowned Night-Heron | Nycticorax nycticorax | |
| Rufescent Tiger-Heron | Tigrisoma lineatum | |
| Maguari Stork | Ciconia maguari | |
| Bare-faced Ibis | Phimosus infuscatus | |
| White-faced Ibis | Plegadis chihi | |
| Roseate Spoonbill | Platalea ajaja | |
| Southern Screamer | Chauna torquata | |
| Black-bellied Whistling-Duck | Dendrocygna autumnalis | |
| Brazilian Teal | Amazonetta brasiliensis | |
| Silver Teal | Anas versicolor | |
| Black Vulture | Coragyps atratus | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| Snail Kite | Rostrhamus sociabilis | |
| Long-winged Harrier | Circus buffoni | |
| Savanna Hawk | Buteogallus meridionalis | |
| Black-collared Hawk | Busarellus nigricollis | |
| Roadside Hawk | Buteo magnirostris | |
| Southern Caracara | Caracara plancus | |
| Yellow-headed Caracara | Milvago chimachima | |
| Chimango Caracara | Milvago chimango | |
| American Kestrel | Falco sparverius | |
| Aplomado Falcon | Falco femoralis | |
| Chaco Chachalaca | Ortalis canicollis | |
| Limpkin | Aramus guarauna | |
| Giant Wood-Rail | Aramides ypecaha | |
| Common Moorhen | Gallinula chloropus | |
| Wattled Jacana | Jacana jacana | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| South American Snipe | Gallinago paraguaiae | |
| Large-billed Tern | Phaetusa simplex | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Eared Dove | Zenaida auriculata | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Monk Parakeet | Myiopsitta monachus | |
| Blue-fronted Parrot | Amazona aestiva | |
| Squirrel Cuckoo | Piaya cayana | |
| Smooth-billed Ani | Crotophaga ani | |
| Guira Cuckoo | Guira guira | |
| Burrowing Owl | Athene cunicularia | |
| Ringed Kingfisher | Ceryle torquatus | |
| Amazon Kingfisher | Chloroceryle amazona | |
| Green Kingfisher | Chloroceryle americana | |
| Toco Toucan | Ramphastos toco | |
| White Woodpecker | Melanerpes candidus | |
| Campo Flicker | Colaptes campestris | |
| Rufous Hornero | Furnarius rufus | |
| Sooty-fronted Spinetail | Synallaxis frontalis | |
| Yellow-chinned Spinetail | Certhiaxis cinnamomea | |
| Greater Thornbird | Phacellodomus ruber | |
| Firewood-gatherer | Anumbius annumbi | |
| Scimitar-billed Woodcreeper | Drymornis bridgesii | Possibly seen |
| Narrow-billed Woodcreeper | Lepidocolaptes angustirostris | |
| Sooty Tyrannulet | Serpophaga nigricans | |
| Pearly-vented Tody-Tyrant | Hemitriccus margaritaceiventer | |
| Vermilion Flycatcher | Pyrocephalus rubinus | |
| Gray Monjita | Xolmis cinerea | |
| White Monjita | Xolmis irupero | |
| Spectacled Tyrant | Hymenops perspicillatus | |
| Streamer-tailed Tyrant | Gubernetes yetapa | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| Social Flycatcher | Myiozetetes similis | |
| Gray-breasted Martin | Progne chalybea | |
| White-winged Swallow | Tachycineta albiventer | Possibly seen |
| White-rumped Swallow | Tachycineta leucorrhoa | |
| Tawny-headed Swallow | Alopochelidon fucata | |
| Yellowish Pipit | Anthus lutescens | Heard only |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Plush-crested Jay | Cyanocorax chrysops | |
| Tropical Parula | Parula pitiayumi | |
| Sayaca Tanager | Thraupis sayaca | |
| Burnished-buff Tanager | Tangara cayana | Possibly seen |
| Black-capped Warbling-Finch | Poospiza melanoleuca | |
| Rusty-collared Seedeater | Sporophila collaris | |
| Saffron Finch | Sicalis flaveola | |
| Great Pampa-Finch | Embernagra platensis | |
| Red-crested Cardinal | Paroaria coronata | |
| Yellow-billed Cardinal | Paroaria capitata | Possibly seen |
| Grassland Sparrow | Ammodramus humeralis | Possibly seen |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Grayish Saltator | Saltator coerulescens | Possibly seen |
| Unicolored Blackbird | Agelasticus cyanopus | |
| Golden-winged Cacique | Cacicus chrysopterus | |
| Yellow-rumped Marshbird | Pseudoleistes guirahuro | |
| Scarlet-headed Blackbird | Amblyramphus holosericeus | |
| Chopi Blackbird | Gnorimopsar chopi | |
| House Sparrow | Passer domesticus | Introduced species |
This is an area of dry Chaco dotted with mainly saline lakes which we visited for a Guyra Paraguay census. We reached many places that would have been very difficult to get to independently. The focus of the trip was for a water bird census but I also had time to bird the scrubby areas around lagoons. The first night we spent at a place called Laguna Capitan which had good facilities for camping and even had beds. There were good lagoons nearby with Chilean Flamingos and many other species of waterbirds. There were also tracks from many mammal species such as tapir, Giant Anteater and peccaries. The second night we spent camping at Campo Maria. There was a 2 dollar entrance fee to get in here. There was good chaco forest around the look-out tower. The third night we spent at Laguna Gansos which was the most difficult to get to. The road was very grown and some areas innundated. We were driving a 4 wheel drive but still had 2 flat tyres. This was a fantastic lake for water birds and we also saw a Giant Anteater on the way in.
| Greater Rhea | Rhea americana | Near-threatened |
| Tataupa Tinamou | Crypturellus tataupa | |
| Brushland Tinamou | Nothoprocta cinerascens | |
| Spotted Nothura | Nothura maculosa | |
| Least Grebe | Tachybaptus dominicus | |
| Pied-billed Grebe | Podilymbus podiceps | |
| White-tufted Grebe | Rollandia rolland | |
| Silvery Grebe | Podiceps occipitalis | |
| Neotropic Cormorant | Phalacrocorax brasilianus | |
| Whistling Heron | Syrigma sibilatrix | |
| Cocoi Heron | Ardea cocoi | |
| Great Egret | Ardea alba | |
| Snowy Egret | Egretta thula | |
| Cattle Egret | Bubulcus ibis | |
| Black-crowned Night-Heron | Nycticorax nycticorax | |
| Wood Stork | Mycteria americana | |
| Maguari Stork | Ciconia maguari | |
| Jabiru | Jabiru mycteria | |
| Plumbeous Ibis | Theristicus caerulescens | |
| Buff-necked Ibis | Theristicus caudatus | |
| Bare-faced Ibis | Phimosus infuscatus | |
| White-faced Ibis | Plegadis chihi | |
| Roseate Spoonbill | Platalea ajaja | |
| Chilean Flamingo | Phoenicopterus chilensis | Near-threatened |
| Southern Screamer | Chauna torquata | |
| Fulvous Whistling-Duck | Dendrocygna bicolor | |
| White-faced Whistling-Duck | Dendrocygna viduata | |
| Black-bellied Whistling-Duck | Dendrocygna autumnalis | |
| Coscoroba Swan | Coscoroba coscoroba | |
| Ringed Teal | Callonetta leucophrys | |
| Brazilian Teal | Amazonetta brasiliensis | |
| White-cheeked Pintail | Anas bahamensis | |
| Silver Teal | Anas versicolor | |
| Rosy-billed Pochard | Netta peposaca | |
| Black Vulture | Coragyps atratus | |
| Turkey Vulture | Cathartes aura | |
| Lesser Yellow-headed Vulture | Cathartes burrovianus | |
| Snail Kite | Rostrhamus sociabilis | |
| Great Black-Hawk | Buteogallus urubitinga | |
| Savanna Hawk | Buteogallus meridionalis | |
| Black-collared Hawk | Busarellus nigricollis | |
| 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 | |
| Chaco Chachalaca | Ortalis canicollis | |
| Limpkin | Aramus guarauna | |
| Giant Wood-Rail | Aramides ypecaha | |
| Common Moorhen | Gallinula chloropus | |
| White-winged Coot | Fulica leucoptera | |
| Wattled Jacana | Jacana jacana | |
| White-backed Stilt | Himantopus melanurus | |
| Southern Lapwing | Vanellus chilensis | |
| Collared Plover | Charadrius collaris | |
| Greater Yellowlegs | Tringa melanoleuca | |
| Lesser Yellowlegs | Tringa flavipes | |
| White-rumped Sandpiper | Calidris fuscicollis | |
| Wilson's Phalarope | Phalaropus tricolor | |
| Franklin's Gull | Larus | |
| Large-billed Tern | Phaetusa simplex | |
| Black Skimmer | Rynchops niger | |
| Picazuro Pigeon | Patagioenas picazuro | |
| Eared Dove | Zenaida auriculata | |
| Picui Ground-Dove | Columbina picui | |
| White-tipped Dove | Leptotila verreauxi | |
| Monk Parakeet | Myiopsitta monachus | |
| Blue-fronted Parrot | Amazona aestiva | |
| Guira Cuckoo | Guira guira | |
| Great Horned Owl | Bubo virginianus | |
| Ferruginous Pygmy-Owl | Glaucidium brasilianum | Possibly seen |
| Burrowing Owl | Athene cunicularia | |
| Nacunda Nighthawk | Podager nacunda | |
| Scissor-tailed Nightjar | Hydropsalis torquata | |
| Glittering-bellied Emerald | Chlorostilbon aureoventris | |
| Amazon Kingfisher | Chloroceryle amazona | |
| White-fronted Woodpecker | Melanerpes cactorum | |
| Checkered Woodpecker | Picoides mixtus | |
| Green-barred Woodpecker | Colaptes melanochloros | |
| Chaco Earthcreeper | Ochetorhynchus certhioides | |
| Rufous Hornero | Furnarius rufus | Seen on the way to Loma Plata |
| Crested Hornero | Furnarius cristatus | |
| Chotoy Spinetail | Schoeniophylax phryganophila | |
| Sooty-fronted Spinetail | Synallaxis frontalis | |
| Pale-breasted Spinetail | Synallaxis albescens | Heard only |
| Stripe-crowned Spinetail | Cranioleuca pyrrhophia | |
| Yellow-chinned Spinetail | Certhiaxis cinnamomea | |
| Lesser Canastero | Asthenes pyrrholeuca | |
| Short-billed Canastero | Asthenes baeri | |
| Common Thornbird | Phacellodomus rufifrons | |
| Little Thornbird | Phacellodomus sibilatrix | |
| Firewood-gatherer | Anumbius annumbi | Heard only |
| Lark-like Brushrunner | Coryphistera alaudina | |
| Scimitar-billed Woodcreeper | Drymornis bridgesii | |
| Narrow-billed Woodcreeper | Lepidocolaptes angustirostris | |
| Great Antshrike | Taraba major | |
| Barred Antshrike | Thamnophilus doliatus | |
| Stripe-backed Antbird | Myrmorchilus strigilatus | |
| Southern Beardless-Tyrannulet | Camptostoma obsoletum | |
| Grey-capped Tyrannulet | Serpophaga | |
| White-bellied Tyrannulet | Serpophaga munda | Possibly seen |
| Suiriri Flycatcher | Suiriri suiriri | |
| Greater Wagtail-Tyrant | Stigmatura budytoides | |
| Pearly-vented Tody-Tyrant | Hemitriccus margaritaceiventer | |
| Vermilion Flycatcher | Pyrocephalus rubinus | |
| Gray Monjita | Xolmis cinerea | |
| White Monjita | Xolmis irupero | |
| Cinereous Tyrant | Knipolegus striaticeps | |
| Spectacled Tyrant | Hymenops perspicillatus | |
| Cattle Tyrant | Machetornis rixosus | |
| Great Kiskadee | Pitangus sulphuratus | |
| White-rumped Swallow | Tachycineta leucorrhoa | |
| Yellowish Pipit | Anthus lutescens | Heard only |
| House Wren | Troglodytes aedon | |
| Chalk-browed Mockingbird | Mimus saturninus | |
| White-banded Mockingbird | Mimus triurus | |
| Rufous-bellied Thrush | Turdus rufiventris | |
| Creamy-bellied Thrush | Turdus amaurochalinus | |
| Masked Gnatcatcher | Polioptila dumicola | |
| Plush-crested Jay | Cyanocorax chrysops | |
| Rufous-browed Peppershrike | Cyclarhis gujanensis | |
| Tropical Parula | Parula pitiayumi | |
| Hepatic Tanager | Piranga flava | |
| Blue-and-yellow Tanager | Thraupis bonariensis | |
| Many-colored Chaco-Finch | Saltatricula multicolor | |
| Red-crested Finch | Coryphospingus cucullatus | |
| Ringed Warbling-Finch | Poospiza torquata | |
| Black-capped Warbling-Finch | Poospiza melanoleuca | |
| Saffron Finch | Sicalis flaveola | |
| Red-crested Cardinal | Paroaria coronata | |
| Grassland Sparrow | Ammodramus humeralis | |
| Rufous-collared Sparrow | Zonotrichia capensis | |
| Golden-billed Saltator | Saltator aurantiirostris | |
| Ultramarine Grosbeak | Cyanocompsa brissonii | |
| Unicolored Blackbird | Agelasticus cyanopus | |
| Chestnut-capped Blackbird | Chrysomus ruficapillus | |
| White-browed Blackbird | Sturnella superciliaris | |
| Bay-winged Cowbird | Molothrus badius | |
| Screaming Cowbird | Molothrus rufoaxillaris | Possibly seen |
| Shiny Cowbird | Molothrus bonariensis | |
| Epaulet Oriole | Icterus cayanensis | |
| Solitary Cacique | Cacicus solitarius | |
| Chopi Blackbird | Gnorimopsar chopi | |
| Orange-backed Troupial | Icterus croconotus | Heard only |
| House Sparrow | Passer domesticus | Introduced species |