KnowKi

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Learn the wildlife of St. Helena

Africa

761 species have research-grade observations in St. Helena 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. Atlantic White-Tern Gygis alba91
  2. Moseley's Rockhopper Penguin Eudyptes moseleyi74
  3. Atlantic Yellow-nosed Albatross Thalassarche chlororhynchos66
  4. Masked Booby Sula dactylatra56
  5. Saint Helena Plover Anarhynchus sanctaehelenae48
  6. Red-billed Tropicbird Phaethon aethereus43
  7. Sooty Tern Onychoprion fuscatus36
  8. Antarctic Tern Sterna vittata32
  9. Common Myna Acridotheres tristis31
  10. Zebra Dove Geopelia striata28

Plants

  1. Sea fig Carpobrotus edulis36
  2. Crystalline ice plant Mesembryanthemum crystallinum32
  3. Common lantana Lantana camara32
  4. Golden Everlasting Xerochrysum bracteatum28
  5. Bloodfinger Icefig Mesembryanthemum cryptanthum27
  6. Carolina hornwort Phaeoceros carolinianus26
  7. Bugweed Solanum mauritianum25
  8. Radula fulvifolia24
  9. Elaphoglossum bifurcatum24
  10. Gorse Ulex europaeus22

Mammals

  1. Subantarctic Fur Seal Arctocephalus tropicalis63
  2. Pantropical Spotted Dolphin Stenella attenuata12
  3. Rough-toothed Dolphin Steno bredanensis11
  4. Common Bottlenose Dolphin Tursiops truncatus10
  5. European Rabbit Oryctolagus cuniculus10
  6. Humpback Whale Megaptera novaeangliae9
  7. Domestic Cat Felis catus9
  8. House Mouse Mus musculus7
  9. Domestic Sheep Ovis aries5
  10. Donkey Equus asinus5

Insects

  1. Pea Blue Lampides boeticus22
  2. Painted Lady Vanessa cardui19
  3. Lunate Lady Beetle Cheilomenes lunata19
  4. Western Honey Bee Apis mellifera15
  5. Asian Lady Beetle Harmonia axyridis14
  6. Hawaiian Beet Webworm Moth Spoladea recurvalis12
  7. Common Drone Fly Eristalis tenax10
  8. South African Mantis Miomantis caffra9
  9. Travelling Splitnose Weevil Sciobius tottus8
  10. Plain Tiger Butterfly Danaus chrysippus7

Spiders and kin

  1. Shorthorn Kitespider Gasteracantha sanguinolenta16
  2. Banded Garden Spider Argiope trifasciata6
  3. Gray Wall Jumping Spider Menemerus bivittatus3
  4. Woodlouse Spider Dysdera crocata3
  5. Adanson's House Jumper Hasarius adansoni3
  6. Xeropigo tridentiger2
  7. Lesser Brown Scorpion Isometrus maculatus2

Reptiles

  1. Green Sea Turtle Chelonia mydas20
  2. Tropical House Gecko Hemidactylus mabouia8
  3. Aldabra Giant Tortoise Aldabrachelys gigantea8
  4. Marbled Leaf-toed Gecko Afrogecko porphyreus6
  5. Asian House Gecko Hemidactylus frenatus5
  6. Hawksbill Sea Turtle Eretmochelys imbricata2

Fish

  1. Saint Helena Butterflyfish Chaetodon sanctaehelenae23
  2. Atlantic Sergeant Major Abudefduf saxatilis16
  3. Spotted Moray Gymnothorax moringa15
  4. Black Triggerfish Melichthys niger10
  5. Strigate Parrotfish Sparisoma strigatum8
  6. Eastern Atlantic Trumpetfish Aulostomus strigosus7
  7. Common Remora Remora remora6
  8. Brazilian Ocean Surgeonfish Acanthurus bahianus6
  9. Island Cowfish Acanthostracion notacanthus5
  10. St. Helena Wrasse Thalassoma sanctaehelenae5

Mollusks

  1. Blushing Snail Helisiga sanctaehelenae41
  2. Garden Snail Cornu aspersum6
  3. Brazilian Reef Octopus Octopus insularis6
  4. Wavy Bubble Snail Micromelo undatus5
  5. Camouflaged Spiny Sea Cradle Plaxiphora aurata2

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.