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Learn the wildlife of national parks

Learn the wildlife of Iguazú National Park

Misiones · Argentina

1,859 species have research-grade observations inside Iguazú National Park on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you know what you're looking at before you go.

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Āki the kiwi, KnowKi's guide

Most recorded here

The species with the most research-grade observations on iNaturalist, and how many each has. Most recorded doesn't mean native.

Birds

  1. Plush-crested Jay Cyanocorax chrysops1,227
  2. Black Vulture Coragyps atratus573
  3. Toco Toucan Ramphastos toco525
  4. Southern Lapwing Vanellus chilensis263
  5. Neotropic Cormorant Nannopterum brasilianum259
  6. Great Dusky Swift Cypseloides senex224
  7. Great Egret Ardea alba215
  8. Anhinga Anhinga anhinga199
  9. Chopí Blackbird Gnorimopsar chopi195
  10. Great Kiskadee Pitangus sulphuratus166

Plants

  1. Brazilian bachelor's button Centratherum punctatum124
  2. Butterfly ginger lily Hedychium coronarium108
  3. Pumpwood Cecropia pachystachya105
  4. Faramea hyacinthina81
  5. Queen palm Syagrus romanzoffiana69
  6. Tree Philodendron Thaumatophyllum bipinnatifidum56
  7. Tillandsia tenuifolia52
  8. Justicia brasiliana51
  9. Brazilian vaseplant Aechmea distichantha48
  10. Amyruca Psychotria carthagenensis45

Mammals

  1. South American Coati Nasua nasua1,280
  2. Brazilian Guinea Pig Cavia aperea84
  3. Azara's Agouti Dasyprocta azarae70
  4. Southeastern Red Brocket Mazama rufa47
  5. Capybara Hydrochoerus hydrochaeris37
  6. Brazilian Squirrel Sciurus brasiliensis32
  7. Common Tapeti Sylvilagus brasiliensis21
  8. Southern Long-nosed Armadillo Dasypus novemcinctus10

Insects

  1. Agathina Emperor Doxocopa agathina854
  2. Hydaspes Eighty-Eight Callicore hydaspes368
  3. Orange Mapwing Hypanartia lethe290
  4. Doxocopa linda269
  5. Dynamine tithia254
  6. Epinome Cracker Hamadryas epinome248
  7. Southern Red Rim Biblis hyperia247
  8. Red Peacock Anartia amathea246
  9. Widespread Eighty-eight Diaethria clymena230
  10. Godart's numberwing Catagramma pygas222

Spiders and kin

  1. Golden Silk Spider Trichonephila clavipes201
  2. Geraeocormobius sylvarum64
  3. Pterinopelma longisternale46
  4. Alpaida grayi31
  5. Alpaida veniliae29
  6. Silver Garden Orbweaver Argiope argentata20
  7. Spinybacked Orbweaver Gasteracantha cancriformis18
  8. Hogna gumia13
  9. Thaumasia velox12
  10. Micrathena plana12

Reptiles

  1. Western Collared Spiny Lizard Tropidurus catalanensis766
  2. Argentine Black-and-white Tegu Salvator merianae447
  3. Broad-snouted Caiman Caiman latirostris226
  4. Geoffroy’s Side-necked Turtle Phrynops geoffroanus36
  5. Chicken Snake Spilotes pullatus21
  6. Southern Green Parrot Snake Leptophis marginatus21
  7. Brazilian Lancehead Bothrops moojeni17
  8. Uruguayan Coralsnake Micrurus altirostris15
  9. Tropical House Gecko Hemidactylus mabouia14
  10. Lichtenstein's Green Racer Philodryas olfersii10

Fish

  1. Myers' Pleco Hypostomus myersi57
  2. Redbreast Tilapia Coptodon rendalli11
  3. Tesay Biglip Pike Cichlid Crenicichla tesay9
  4. Hypostomus albopunctatus8

How a trip works

A trip has its own trail of lessons: meet six species, match them to new photos, then practice with four choices. Species you learn go into your Fieldbook, and starting a trip earns its Passport stamp. Your home place stays as it is.

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Species lists and counts from research-grade observations on iNaturalist, as of October 2026. Parks outside the U.S. are from the World Database on Protected Areas (UNEP-WCMC and IUCN, Protected Planet). KnowKi is not affiliated with the National Park Service or any park's managers. Free, with no ads, no account, and no purchases.