KnowKi

Learn the wildlife of national parks

Learn the wildlife of Krka National Park

Croatia

1,124 species have research-grade observations inside Krka 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. Mallard Anas platyrhynchos118
  2. Mute Swan Cygnus olor60
  3. Common Chaffinch Fringilla coelebs46
  4. Grey Heron Ardea cinerea34
  5. Pygmy Cormorant Microcarbo pygmaeus30
  6. Great Cormorant Phalacrocorax carbo29
  7. Yellow-legged Gull Larus michahellis22
  8. Eurasian Blackbird Turdus merula6
  9. Short-toed Snake-Eagle Circaetus gallicus5
  10. Grey Wagtail Motacilla cinerea5

Plants

  1. Ivy-leaved cyclamen Cyclamen hederifolium94
  2. Common fig Ficus carica88
  3. Black maidenhair fern Adiantum capillus-veneris80
  4. Chimney Bellflower Campanula pyramidalis72
  5. Purple loosestrife Lythrum salicaria62
  6. Hemp agrimony Eupatorium cannabinum54
  7. Ivy broomrape Orobanche hederae52
  8. Butcher's-broom Ruscus aculeatus48
  9. Common ivy Hedera helix46
  10. Rough Bindweed Smilax aspera44

Mammals

  1. Domestic Cat Felis catus5
  2. Geoffroy's Bat Myotis emarginatus4
  3. European Fat Dormouse Glis glis4
  4. Greater Horseshoe Bat Rhinolophus ferrumequinum3
  5. Common Noctule Nyctalus noctula2

Insects

  1. Banded Demoiselle Calopteryx splendens208
  2. Keeled Skimmer Orthetrum coerulescens141
  3. Egyptian Bird Grasshopper Anacridium aegyptium64
  4. Blue Featherleg Platycnemis pennipes58
  5. Scarce Chaser Libellula fulva48
  6. Beautiful Demoiselle Calopteryx virgo39
  7. Small Pincertail Onychogomphus forcipatus31
  8. Cardinal Butterfly Argynnis pandora30
  9. Schmidt's Marbled Bush-cricket Eupholidoptera schmidti30
  10. Scarce Swallowtail Iphiclides podalirius28

Spiders and kin

  1. Wasp Spider Argiope bruennichi8
  2. Marbled Cellar Spider Holocnemus pluchei6
  3. Angular Orbweaver Spider Araneus angulatus5
  4. Radiated Wolf Spider Hogna radiata5
  5. Red-bellied Jumping Spider Philaeus chrysops4
  6. Carrhotus xanthogramma4
  7. Nelima troglodytes4
  8. Cross Orbweaver Araneus diadematus3
  9. Fencepost jumping spider Marpissa muscosa3
  10. Meta bourneti3

Reptiles

  1. Tessellated Water Snake Natrix tessellata81
  2. Italian Wall Lizard Podarcis siculus60
  3. Grass snake Natrix natrix36
  4. Balkan Green Lizard Lacerta trilineata34
  5. European Glass Lizard Pseudopus apodus18
  6. Dalmatian Wall Lizard Podarcis melisellensis15
  7. Four-lined Snake Elaphe quatuorlineata13
  8. Cat Snake Telescopus fallax9
  9. Balkan Whip Snake Hierophis gemonensis7
  10. European Ratsnake Zamenis situla5

Amphibians

  1. Marsh Frog Pelophylax ridibundus75
  2. European Toad Bufo bufo37
  3. Agile Frog Rana dalmatina12
  4. Green Toad Bufotes viridis4

Fish

  1. Cavedano Chub Squalius squalus20
  2. Pumpkinseed Lepomis gibbosus19
  3. Northern Pike Esox lucius9
  4. Eastern Mosquitofish Gambusia holbrooki4
  5. European Chub Squalius cephalus4
  6. Freshwater Blenny Salariopsis fluviatilis4
  7. Sea Mullet Mugil cephalus3

Mollusks

  1. Chocolate-band Snail Eobania vermiculata3
  2. Vineyard Snail Caucasotachea vindobonensis3
  3. Liburnica setosa3

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.