KnowKi

Learn the wildlife of any country

Learn the wildlife of Czechia

Europe

12,785 species have research-grade observations in Czechia 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. Mallard Anas platyrhynchos7,893
  2. Eurasian Blackbird Turdus merula5,940
  3. Common Wood-Pigeon Columba palumbus4,688
  4. Great Tit Parus major4,099
  5. Mute Swan Cygnus olor3,586
  6. Grey Heron Ardea cinerea3,531
  7. Great Spotted Woodpecker Dendrocopos major3,214
  8. Rock Pigeon Columba livia3,100
  9. Eurasian Blue Tit Cyanistes caeruleus2,983
  10. Eurasian Magpie Pica pica2,913

Plants

  1. Lawn daisy Bellis perennis16,988
  2. Ground-ivy Glechoma hederacea12,405
  3. Great stinging nettle Urtica dioica10,255
  4. Greater celandine Chelidonium majus8,133
  5. Lesser celandine Ficaria verna7,910
  6. Germander Speedwell Veronica chamaedrys7,141
  7. Red deadnettle Lamium purpureum6,855
  8. Garlic mustard Alliaria petiolata6,458
  9. Wood anemone Anemonoides nemorosa6,135
  10. Common dandelion Taraxacum officinale5,981

Mammals

  1. Coypu Myocastor coypus3,011
  2. Western Roe Deer Capreolus capreolus2,452
  3. Eurasian Red Squirrel Sciurus vulgaris2,102
  4. Brown Hare Lepus europaeus1,876
  5. Eurasian Beaver Castor fiber786
  6. European Mole Talpa europaea685

Insects

  1. European Firebug Pyrrhocoris apterus6,889
  2. Asian Lady Beetle Harmonia axyridis6,727
  3. European Peacock Butterfly Aglais io6,342
  4. Western Honey Bee Apis mellifera5,432
  5. Seven-spotted Lady Beetle Coccinella septempunctata4,375
  6. Common Blue Polyommatus icarus3,905
  7. Meadow Brown Maniola jurtina3,850
  8. Red Admiral Vanessa atalanta3,365
  9. Small Heath Coenonympha pamphilus3,365
  10. European Stag Beetle Lucanus cervus3,214

Spiders and kin

  1. Cross Orbweaver Araneus diadematus2,401
  2. Wasp Spider Argiope bruennichi2,252
  3. European Nursery Web spider Pisaura mirabilis1,844
  4. Walnut Orbweaver Nuctenea umbratica926
  5. European Harvestman Phalangium opilio753
  6. Goldenrod Crab Spider Misumena vatia738
  7. Canestrini's Harvestman Opilio canestrinii699

Reptiles

  1. Common Slowworm Anguis fragilis4,087
  2. Sand Lizard Lacerta agilis2,695
  3. Grass snake Natrix natrix1,832
  4. Green Lizard Lacerta viridis1,238
  5. Smooth Snake Coronella austriaca1,028
  6. Viviparous Lizard Zootoca vivipara888

Amphibians

  1. European Toad Bufo bufo4,530
  2. Fire Salamander Salamandra salamandra2,239
  3. European Common Frog Rana temporaria2,017
  4. Agile Frog Rana dalmatina1,269
  5. Green Toad Bufotes viridis1,044
  6. Marsh Frog Pelophylax ridibundus731
  7. Smooth Newt Lissotriton vulgaris706

Mollusks

  1. Roman Snail Helix pomatia4,326
  2. Brown-lipped Snail Cepaea nemoralis1,452
  3. White-lipped Snail Cepaea hortensis1,447
  4. Ash-black Slug Limax cinereoniger824
  5. Leopard Slug Limax maximus732

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.