KnowKi

Learn the wildlife of national parks

Learn the wildlife of Kakadu National Park

Australia

1,492 species have research-grade observations inside Kakadu 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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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. Comb-crested Jacana Irediparra gallinacea404
  2. Magpie Goose Anseranas semipalmata360
  3. Whistling Kite Haliastur sphenurus357
  4. Australasian Darter Anhinga novaehollandiae352
  5. Black-necked Stork Ephippiorhynchus asiaticus344
  6. White-bellied Sea-Eagle Icthyophaga leucogaster340
  7. Plumed Whistling-Duck Dendrocygna eytoni329
  8. Nankeen Night Heron Nycticorax caledonicus288
  9. Plumed Egret Ardea plumifera287
  10. Little Corella Cacatua sanguinea248

Plants

  1. Dryander's grevillea Grevillea dryandri155
  2. Sacred Lotus Nelumbo nucifera152
  3. Screw Palm Pandanus spiralis105
  4. Sand Palm Livistona humilis98
  5. Turkey Bush Calytrix exstipulata96
  6. Yellow Kapok Cochlospermum fraseri76
  7. Utricularia fulva72
  8. Indian Putat Barringtonia acutangula70
  9. Sandstone Pandanus Pandanus basedowii68
  10. Drosera dilatatopetiolaris64

Mammals

  1. Agile Wallaby Notamacropus agilis264
  2. Domestic Water Buffalo Bubalus bubalis129
  3. Eastern Short-eared Rock Wallaby Petrogale wilkinsi103
  4. Domestic Dog Canis familiaris99
  5. Black Flying-fox Pteropus alecto77
  6. Domestic Horse Equus caballus48
  7. Common Brushtail Possum Trichosurus vulpecula40
  8. Wild Boar Sus scrofa36
  9. Little Red Flying-fox Pteropus scapulatus28
  10. Black Wallaroo Osphranter bernardus23

Insects

  1. Asian Weaver Ant Oecophylla smaragdina141
  2. Painted Grasshawk Neurothemis stigmatizans125
  3. Australian Common Crow Euploea corinna118
  4. Graphic Flutterer Rhyothemis graphiptera112
  5. Chalky Percher Diplacodes trivialis72
  6. Common Glider Tramea loewii66
  7. Blue Pansy Junonia orithya59
  8. Swamp Tiger Butterfly Danaus affinis56
  9. Lesser Wanderer Danaus petilia55
  10. Four o'clock moth Dysphania numana52

Spiders and kin

  1. Giant Golden Orbweaver Nephila pilipes80
  2. Radon Saint Andrew's Cross Spider Argiope radon38
  3. Argiope katherina24
  4. Northern Saint Andrew's Cross Spider Argiope aetherea17
  5. Top End Jungle Huntsman Heteropoda renibulbis17
  6. Lion Huntsman Neosparassus magareyi14
  7. Australian Golden Orbweaver Trichonephila edulis14
  8. Green Jumping Spider Mopsus mormon8
  9. Christmas Jewel Spider Austracantha minax8
  10. Painted Cross Spider Argiope picta7

Reptiles

  1. Saltwater Crocodile Crocodylus porosus1,122
  2. Bauxite Rainbow Skink Carlia amax214
  3. Frilled Dragon Chlamydosaurus kingii66
  4. Gilbert's Dragon Lophognathus gilberti58
  5. Mertens' Water Monitor Varanus mertensi51
  6. Yellow-spotted Monitor Varanus panoptes49
  7. Common keelback Tropidonophis mairii48
  8. Common Prickly Gecko Heteronotia binoei46
  9. Common Tree Snake Dendrelaphis punctulatus44
  10. Burton's Legless Lizard Lialis burtonis42

Amphibians

  1. Cane Toad Rhinella marina81
  2. Western Laughing Tree Frog Pengilleyia ridibunda75
  3. Northern Dwarf Tree Frog Carichyla bicolor66
  4. Rockhole Frog Mahonabatrachus meirianus52
  5. Green Tree Frog Pelodryas caerulea42
  6. Striped Rocket Frog Litoria nasuta41
  7. Spalding's Rocket Frog Litoria spaldingi30
  8. Dahl's Aquatic Frog Megatestis dahlii29
  9. Desert Tree Frog Colleeneremia rubella25
  10. Giant Burrowing Frog Cyclorana australis20

Fish

  1. Spotted Archerfish Toxotes chatareus59
  2. Barramundi Lates calcarifer27
  3. Sooty Grunter Hephaestus fuliginosus23
  4. Barred Grunter Amniataba percoides22
  5. Northern Saratoga Scleropages jardinii22
  6. Popeye Mullet Rhinomugil nasutus19
  7. Spangled Perch Leiopotherapon unicolor16
  8. Eastern Rainbowfish Melanotaenia splendida13
  9. Freshwater Longtom Strongylura krefftii12
  10. Sharpnose Grunter Syncomistes butleri10

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.