KnowKi

Learn the wildlife of any country

Learn the wildlife of Tonga

Oceania

1,224 species have research-grade observations in Tonga on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you can learn a country's wildlife from home.

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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. Pacific Kingfisher Todiramphus sacer55
  2. Pacific Golden-Plover Pluvialis fulva49
  3. Pacific Reef Heron Egretta sacra49
  4. Polynesian Starling Aplonis tabuensis46
  5. White-faced Heron Egretta novaehollandiae34
  6. Polynesian Triller Lalage maculosa32
  7. Polynesian Wattled Honeyeater Foulehaio carunculatus31
  8. Pacific Imperial Pigeon Ducula pacifica30
  9. Brown Booby Sula leucogaster27
  10. Great Frigatebird Fregata minor26

Plants

  1. Tree heliotrope Heliotropium arboreum49
  2. Sea hibiscus Hibiscus tiliaceus46
  3. Bantigue Pemphis acidula44
  4. Thatch screwpine Pandanus tectorius40
  5. Noni Morinda citrifolia38
  6. Beach naupaka Scaevola taccada36
  7. Beach Sheoak Casuarina equisetifolia32
  8. Coconut palm Cocos nucifera30
  9. Beach Morning Glory Ipomoea pes-caprae25
  10. Lantern Tree Hernandia nymphaeifolia23

Mammals

  1. Humpback Whale Megaptera novaeangliae87
  2. Pacific Flying-fox Pteropus tonganus49
  3. Wild Boar Sus scrofa8

Insects

  1. Great Eggfly Hypolimnas bolina67
  2. Common Evening Brown Melanitis leda27
  3. Yellow Crazy Ant Anoplolepis gracilipes25
  4. Asian Magpie Moth Nyctemera baulus24
  5. Meadow Argus Junonia villida17
  6. Yellow Oriental Paper Wasp Polistes olivaceus17
  7. Western Honey Bee Apis mellifera14
  8. Heliotrope Moth Utetheisa pulchelloides14
  9. Euploea lewinii13
  10. Citron Bug Leptoglossus gonagra10

Spiders and kin

  1. Nephila tetragnathoides47
  2. Dome Web Spider Cyrtophora moluccensis9
  3. Pantropical Huntsman Spider Heteropoda venatoria6
  4. Gray Wall Jumping Spider Menemerus bivittatus5
  5. Northern Silver Orbweaver Leucauge granulata4

Reptiles

  1. Mourning Gecko Lepidodactylus lugubris24
  2. Asian House Gecko Hemidactylus frenatus14
  3. Azure-tailed Skink Emoia impar13
  4. Yellow-lipped Sea Krait Laticauda colubrina13
  5. Pacific Dtella Gehyra oceanica9
  6. Copper-tailed Skink Emoia cyanura8
  7. Green Sea Turtle Chelonia mydas7
  8. Tongan Robust Treeskink Emoia mokolahi5
  9. Mottled Snake-eyed Skink Cryptoblepharus poecilopleurus4
  10. Hawksbill Sea Turtle Eretmochelys imbricata4

Fish

  1. Scissortail Sergeant Abudefduf sexfasciatus77
  2. Pacific Bullethead Parrotfish Chlorurus spilurus48
  3. Orangefin Anemonefish Amphiprion chrysopterus46
  4. Fiji Tomato Anemonefish Amphiprion barberi42
  5. Moorish Idol Zanclus cornutus41
  6. Sixbar Wrasse Thalassoma hardwicke40
  7. Speckled Butterflyfish Chaetodon citrinellus38
  8. Humbug Dascyllus Dascyllus aruanus37
  9. Blackfin Damselfish Amblyglyphidodon melanopterus35
  10. Redfin Butterflyfish Chaetodon lunulatus33

Mollusks

  1. Jewelled Chiton Acanthopleura gemmata15
  2. Small Giant Clam Tridacna maxima13
  3. Decumbent Spanish Dancer Hexabranchus lacer12
  4. Tiger Cowrie Cypraea tigris10
  5. Pleated Nerite Nerita plicata9
  6. Common Spider Conch Lambis lambis9
  7. Variable Stromb Maculastrombus mutabilis8
  8. Fluted Giant Clam Tridacna squamosa7
  9. Black-and-white Cone Snail Conus ebraeus7
  10. Commercial Top Shell Rochia nilotica7

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. Free, with no ads, no account and no purchases.