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Key Places for biodiversity

Learn the wildlife of Białowieża Forest

Poland · Belarus

Białowieża Forest is one of E.O. Wilson's Key Places, irreplaceable for life on Earth. 2,452 species have research-grade observations there on iNaturalist, and KnowKi turns the most recorded into short lessons with real photos.

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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. Great Spotted Woodpecker Dendrocopos major74
  2. Eurasian Nuthatch Sitta europaea51
  3. Eurasian Three-toed Woodpecker Picoides tridactylus50
  4. Black Woodpecker Dryocopus martius46
  5. White-backed Woodpecker Dendrocopos leucotos45
  6. Common Chaffinch Fringilla coelebs42
  7. Yellowhammer Emberiza citrinella41
  8. Collared Flycatcher Ficedula albicollis34
  9. Eurasian Pygmy-Owl Glaucidium passerinum33
  10. Red-backed Shrike Lanius collurio31

Plants

  1. Liverleaf Hepatica nobilis207
  2. Coralroot Cardamine bulbifera200
  3. Mezereon Daphne mezereum183
  4. Martagon Lily Lilium martagon156
  5. Spring vetch Lathyrus vernus151
  6. European wood-sorrel Oxalis acetosella150
  7. European Hornbeam Carpinus betulus139
  8. Wood anemone Anemonoides nemorosa137
  9. Sweet Woodruff Galium odoratum129
  10. Yellow archangel Lamium galeobdolon127

Mammals

  1. Wisent Bos bonasus160
  2. Red Deer Cervus elaphus87
  3. Western Roe Deer Capreolus capreolus49
  4. Eurasian Red Squirrel Sciurus vulgaris42
  5. Wild Boar Sus scrofa40
  6. Gray Wolf Canis lupus37
  7. Eurasian Beaver Castor fiber37
  8. Red Fox Vulpes vulpes30
  9. European Mole Talpa europaea27
  10. Moose Alces alces25

Insects

  1. Woodland Dor Beetle Anoplotrupes stercorosus153
  2. Silver-washed Fritillary Argynnis paphia71
  3. The Tanner Prionus coriarius53
  4. Map Araschnia levana47
  5. European Comma Polygonia c-album44
  6. Smooth ground beetle Carabus glabratus40
  7. Red-breasted Carrion Beetle Oiceoptoma thoracicum39
  8. Red Pine Longhorn Beetle Stictoleptura rubra34
  9. Bronze Ground Beetle Carabus nemoralis31
  10. Springtime Dung Beetle Trypocopris vernalis31

Reptiles

  1. Grass snake Natrix natrix111
  2. Eastern Slowworm Anguis colchica46
  3. Viviparous Lizard Zootoca vivipara23

Amphibians

  1. European Common Frog Rana temporaria116
  2. European Toad Bufo bufo79
  3. Moor Frog Rana arvalis14

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. KnowKi is not affiliated with the E.O. Wilson Biodiversity Foundation. Free, with no ads, no account and no purchases.