KnowKi

Learn the wildlife of any country

Learn the wildlife of Ireland

Europe

6,896 species have research-grade observations in Ireland 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. European Herring Gull Larus argentatus5,437
  2. Rook Corvus frugilegus3,994
  3. European Robin Erithacus rubecula3,300
  4. Mallard Anas platyrhynchos3,281
  5. Eurasian Jackdaw Coloeus monedula3,102
  6. Grey Heron Ardea cinerea3,098
  7. Black-headed Gull Chroicocephalus ridibundus3,066
  8. Hooded Crow Corvus cornix2,946
  9. White Wagtail Motacilla alba2,886
  10. Eurasian Magpie Pica pica2,845

Plants

  1. Sea Thrift Armeria maritima1,878
  2. Herb Robert Geranium robertianum1,685
  3. Red Valerian Centranthus ruber1,452
  4. Purple foxglove Digitalis purpurea1,393
  5. Maidenhair spleenwort Asplenium trichomanes1,350
  6. Ivy-leaved toadflax Cymbalaria muralis1,298
  7. Ragwort Jacobaea vulgaris1,282
  8. Hart's-tongue fern Asplenium scolopendrium1,232
  9. Great stinging nettle Urtica dioica1,228
  10. Gorse Ulex europaeus1,198

Mammals

  1. Grey Seal Halichoerus grypus900
  2. Eastern Gray Squirrel Sciurus carolinensis728
  3. Sika Deer Cervus nippon669
  4. Red Fox Vulpes vulpes424
  5. European Rabbit Oryctolagus cuniculus423
  6. Harbor Seal Phoca vitulina288
  7. Mountain Hare Lepus timidus266
  8. Red Deer Cervus elaphus183
  9. Common Dolphin Delphinus delphis160
  10. Greater White-toothed Shrew Crocidura russula160

Insects

  1. Small Tortoiseshell Aglais urticae1,560
  2. Speckled Wood Pararge aegeria1,285
  3. Red Admiral Vanessa atalanta1,251
  4. Cinnabar moth Tyria jacobaeae1,085
  5. Common Carder Bumble Bee Bombus pascuorum1,057
  6. Seven-spotted Lady Beetle Coccinella septempunctata965
  7. Western Honey Bee Apis mellifera935
  8. European Peacock Butterfly Aglais io873
  9. Asian Lady Beetle Harmonia axyridis758
  10. Meadow Brown Maniola jurtina747

Spiders and kin

  1. Cross Orbweaver Araneus diadematus766
  2. Noble False Widow Steatoda nobilis430
  3. Long-bodied Cellar Spider Pholcus phalangioides346
  4. European Nursery Web spider Pisaura mirabilis252
  5. Goldenrod Crab Spider Misumena vatia170
  6. False Black Widow Steatoda grossa157

Fish

  1. Shanny Lipophrys pholis159
  2. European Minnow Phoxinus phoxinus144
  3. Brown Trout Salmo trutta130

Mollusks

  1. Garden Snail Cornu aspersum1,575
  2. Brown-lipped Snail Cepaea nemoralis764
  3. Atlantic Dogwhelk Nucella lapillus383
  4. Common European Limpet Patella vulgata323
  5. Common Periwinkle Littorina littorea321
  6. Common Whelk Buccinum undatum279
  7. Blue Mussel Mytilus edulis270
  8. Lined Top Shell Phorcus lineatus214
  9. Common Cockle Cerastoderma edule195
  10. Purple Topshell Steromphala umbilicalis195

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.