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Learn the wildlife of national parks

Learn the wildlife of Río Pilcomayo National Park

Argentina

426 species have research-grade observations inside Río Pilcomayo 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. Chaco Chachalaca Ortalis canicollis37
  2. Savanna Hawk Buteogallus meridionalis30
  3. Lesser Yellow-headed Vulture Cathartes burrovianus26
  4. Plumbeous Ibis Theristicus caerulescens23
  5. Crested Caracara Caracara plancus23
  6. Purplish Jay Cyanocorax cyanomelas20
  7. Golden-winged Cacique Cacicus chrysopterus19
  8. White-fronted Woodpecker Melanerpes cactorum16
  9. Cream-backed Woodpecker Campephilus leucopogon15
  10. Giant Wood-Rail Aramides ypecaha14

Plants

  1. Caranday Palm Copernicia alba29
  2. Peperomia aceroana18
  3. Brazilian vaseplant Aechmea distichantha11
  4. Gomphrena pulchella8
  5. Praecereus euchlorus7
  6. Tillandsia vernicosa7
  7. Alligator flag Thalia geniculata6
  8. Giant Red Dragon Apple Cactus Harrisia bonplandii6
  9. Riverina pear Opuntia elata6
  10. Tillandsia duratii6

Mammals

  1. Crab-eating Fox Cerdocyon thous13
  2. Crab-eating Raccoon Procyon cancrivorus4
  3. South American Coati Nasua nasua4
  4. Southern Brown Brocket Subulo gouazoubira4
  5. Brazilian Guinea Pig Cavia aperea2
  6. Jaguarundi Herpailurus yagouaroundi2
  7. Southern Long-nosed Armadillo Dasypus novemcinctus1
  8. Capybara Hydrochoerus hydrochaeris1
  9. Domestic Cat Felis catus1

Insects

  1. Banded Orange Heliconian Dryadula phaetusa14
  2. White Peacock Anartia jatrophae9
  3. Great Southern White Ascia monuste9
  4. Pin-tailed Pondhawk Erythemis plebeja9
  5. Band-winged Dragonlet Erythrodiplax umbrata8
  6. Hanno Blue Hemiargus hanno8
  7. Thoas Swallowtail Heraclides thoas8
  8. Giant Cicada Quesada gigas6
  9. Common Mangrove Buckeye Junonia genoveva6
  10. Gulf Fritillary Dione vanillae5

Spiders and kin

  1. Aglaoctenus lagotis10
  2. Chaco Golden-knee Tarantula Grammostola pulchripes7
  3. Alpaida carminea2
  4. Peucetia rubrolineata1
  5. Thaumasia velox1
  6. Parawixia bistriata1
  7. Latrodectus antheratus1
  8. Micrathena swainsoni1
  9. Psecas sumptuosus1

Reptiles

  1. Giant Ameiva Ameiva ameiva7
  2. Four-toed Tegu Teius teyou6
  3. Neotropical Rattlesnake Crotalus durissus4
  4. Broad-snouted Caiman Caiman latirostris4
  5. Argentine Black-and-white Tegu Salvator merianae4
  6. Urutu Lancehead Bothrops alternatus3
  7. Painted Lancehead Bothrops diporus2
  8. Amazon False Coral Snake Oxyrhopus rhombifer1
  9. Southern Striped Snake Lygophis meridionalis1
  10. False Water Cobra Hydrodynastes gigas1

Amphibians

  1. Mato Grosso Snouted Tree Frog Scinax acuminatus9
  2. Lesser Snouted Tree Frog Scinax nasicus3
  3. Miranda's White-lipped Frog Leptodactylus macrosternum3
  4. Cururu Toad Rhinella diptycha2

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.