Rheas There are 2 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Greater Rhea |
 | Lesser Rhea |
Screamers There are 3 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Southern Screamer |
Ducks, geese & swans There are 169 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Coscoroba Swan |
 | Crested Duck |
Flamingos There are 6 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Chilean Flamingo |
Ibises & spoonbills There are 35 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Buff-necked Ibis |
Herons & egrets There are 68 species of birds in the family and E. Richard has recorded 3 species from around the world. |
 | Cocoi Heron |
 | Great Egret |
 | Whistling Heron |
Cormorants There are 34 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Neotropic Cormorant |
New World vultures There are 7 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Turkey Vulture |
Falcons & caracaras There are 66 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Southern Caracara |
 | American Kestrel |
Osprey, kites, hawks & eagles There are 247 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Roadside Hawk |
Rails, crakes & allies There are 159 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Giant Coot |
 | Horned Coot |
Oystercatchers There are 12 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | American Oystercatcher |
Gulls & terns There are 105 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Andean Gull |
Doves & pigeons There are 319 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Eared Dove |
Parrots There are 374 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Red-and-green Macaw |
 | Monk Parakeet |
Cuckoos There are 146 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Guira Cuckoo |
Hummingbirds There are 337 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Red-tailed Comet |
Toucans & barbets There are 124 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Toco Toucan |
Tyrant-flycatchers There are 410 species of birds in the family and E. Richard has recorded 2 species from around the world. |
 | Black-and-white Monjita |
 | Fork-tailed Flycatcher |
Ovenbirds There are 238 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Rufous Hornero |
Gnatcatchers There are 15 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Masked Gnatcatcher |
Mockingbirds & thrashers There are 35 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Chalk-browed Mockingbird |
Sparrows, snowfinches & allies There are 45 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | House Sparrow |
Buntings, American sparrows & allies There are 318 species of birds in the family and E. Richard has recorded 3 species from around the world. |
 | Rufous-collared Sparrow |
 | Red-crested Finch |
 | Red-crested Cardinal |
Tanagers There are 271 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Hepatic Tanager |
Grosbeaks, saltators & allies There are 35 species of birds in the family and E. Richard has recorded 1 species from around the world. |
 | Ultramarine Grosbeak |