KnowKi

Learn the wildlife of national parks

Learn the wildlife of Utrechtse Heuvelrug National Park

Netherlands

1,135 species have research-grade observations inside Utrechtse Heuvelrug National Park on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you know what you're looking at before you go.

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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. Common Buzzard Buteo buteo13
  2. Common Chaffinch Fringilla coelebs11
  3. Red-backed Shrike Lanius collurio11
  4. Grey Heron Ardea cinerea10
  5. Great Spotted Woodpecker Dendrocopos major9
  6. Great Tit Parus major8
  7. European Robin Erithacus rubecula7
  8. Great Egret Ardea alba7
  9. Great Gray Shrike Lanius excubitor7
  10. Common Cuckoo Cuculus canorus6

Plants

  1. Purple foxglove Digitalis purpurea38
  2. Ground-ivy Glechoma hederacea24
  3. Common heather Calluna vulgaris24
  4. Common bilberry Vaccinium myrtillus24
  5. Himalayan balsam Impatiens glandulifera21
  6. Small balsam Impatiens parviflora16
  7. Sheep's-bit Jasione montana15
  8. Bank Haircap Moss Polytrichum formosum15
  9. English oak Quercus robur13
  10. Neat Feather-moss Pseudoscleropodium purum13

Mammals

  1. Western Roe Deer Capreolus capreolus15
  2. European Fallow Deer Dama dama8
  3. European Rabbit Oryctolagus cuniculus4
  4. Domestic Cattle Bos taurus4
  5. Wild Boar Sus scrofa3
  6. Brown Hare Lepus europaeus3
  7. Eurasian Red Squirrel Sciurus vulgaris3
  8. Bank Vole Clethrionomys glareolus3

Insects

  1. Woodland Dor Beetle Anoplotrupes stercorosus34
  2. Black-tailed Skimmer Orthetrum cancellatum26
  3. Seven-spotted Lady Beetle Coccinella septempunctata24
  4. Cinnabar moth Tyria jacobaeae21
  5. Ruddy Darter Sympetrum sanguineum21
  6. Fox Moth Macrothylacia rubi19
  7. Speckled Wood Pararge aegeria18
  8. Four-spotted Skimmer Libellula quadrimaculata17
  9. Azure Damselfly Coenagrion puella16
  10. Pale Tussock Moth Calliteara pudibunda16

Spiders and kin

  1. Cross Orbweaver Araneus diadematus8
  2. Wasp Spider Argiope bruennichi6
  3. Purseweb Spider Atypus affinis5
  4. Canestrini's Harvestman Opilio canestrinii4
  5. Spotted Wolf Spider Pardosa amentata3
  6. Red Nail Gall Mite Eriophyes tiliae3
  7. Spring Harvestman Rilaena triangularis3
  8. European Nursery Web spider Pisaura mirabilis2
  9. False Black Widow Steatoda grossa2

Reptiles

  1. Sand Lizard Lacerta agilis28
  2. Common Slowworm Anguis fragilis15
  3. Viviparous Lizard Zootoca vivipara6
  4. Barred Grass Snake Natrix helvetica6
  5. Pond Slider Trachemys scripta3

Amphibians

  1. European Common Frog Rana temporaria30
  2. European Toad Bufo bufo18
  3. Smooth Newt Lissotriton vulgaris12
  4. Natterjack Toad Epidalea calamita5

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. Parks outside the U.S. are from the World Database on Protected Areas (UNEP-WCMC and IUCN, Protected Planet). KnowKi is not affiliated with the National Park Service or any park's managers. Free, with no ads, no account, and no purchases.