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Learn the wildlife of national parks

Learn the wildlife of Piedras Blancas National Park

Costa Rica

758 species have research-grade observations inside Piedras Blancas 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. Yellow-throated Toucan Ramphastos ambiguus21
  2. White Ibis Eudocimus albus17
  3. Scarlet-rumped Tanager Ramphocelus passerinii15
  4. Little Blue Heron Egretta caerulea12
  5. Yellow-headed Caracara Daptrius chimachima10
  6. Yellow-crowned Night Heron Nyctanassa violacea8
  7. Black-hooded Antshrike Thamnophilus bridgesi8
  8. Lineated Woodpecker Dryocopus lineatus8
  9. Spotted Sandpiper Actitis macularius8
  10. Amazon Kingfisher Chloroceryle amazona7

Plants

  1. Episcia lilacina13
  2. Sore-mouth bush Palicourea tomentosa11
  3. Grapeleaf passionflower Passiflora vitifolia7
  4. Scarlet-star Guzmania lingulata7
  5. Coconut palm Cocos nucifera6
  6. Costus laevis6
  7. Philodendron pterotum6
  8. Voyria kupperi6
  9. Shortstem philodendron Philodendron fragrantissimum5
  10. Dimerocostus strobilaceus5

Mammals

  1. Central American White-faced Capuchin Cebus imitator14
  2. Central American Agouti Dasyprocta punctata12
  3. Common Bottlenose Dolphin Tursiops truncatus11
  4. White-nosed Coati Nasua narica10
  5. Mantled Howler Monkey Alouatta palliata10
  6. Collared Peccary Pecari tajacu8
  7. Northern Tamandua Tamandua mexicana7
  8. Common tent-making Bat Uroderma bilobatum4
  9. Sumichrast's Vesper Rat Nyctomys sumichrasti3
  10. Great Fruit-eating Bat Artibeus lituratus2

Insects

  1. Shimmering Golden Sugar ant Camponotus sericeiventris12
  2. Tropical Woodskimmer Uracis imbuta11
  3. White Peacock Anartia jatrophae9
  4. Megaloprepus diaboli9
  5. Burchell's Army Ant Eciton burchellii7
  6. Oculate Dancer Argia oculata6
  7. Doris Longwing Heliconius doris6
  8. Amathonte Morpho Morpho amathonte6
  9. Banded Peacock Anartia fatima5
  10. Red-and-black Flatwing Heteragrion erythrogastrum5

Spiders and kin

  1. Golden Silk Spider Trichonephila clavipes23
  2. Phoneutria depilata8
  3. Argiope submaronica4
  4. Bogota Giant Fishing Spider Ancylometes bogotensis4
  5. Tropical Orb Weaver Eriophora fuliginea2
  6. Centruroides bicolor2
  7. Arrowhead Orbweaver Verrucosa arenata1
  8. Costa Rican orangemouth tarantula Psalmopoeus reduncus1
  9. Red-thighed Bromeliad Spider Cupiennius coccineus1

Reptiles

  1. Common Basilisk Basiliscus basiliscus36
  2. Many-scaled Anole Anolis polylepis35
  3. Middle American Ameiva Holcosus festivus24
  4. Helmeted Iguana Corytophanes cristatus16
  5. Pug-nosed Anole Anolis capito12
  6. Terciopelo Bothrops asper9
  7. Ornate Cat-eyed Snake Leptodeira ornata9
  8. Dormilona Corallus ruschenbergerii8
  9. Green Iguana Iguana iguana7
  10. Delicate Ameiva Holcosus leptophrys7

Amphibians

  1. Rugose Robber Frog Craugastor rugosus16
  2. Rainforest Toad Incilius aucoinae16
  3. Rosenberg's Gladiator Frog Boana rosenbergi15
  4. Giant Toad Rhinella horribilis14
  5. Stejneger's Robber Frog Craugastor stejnegerianus11
  6. Red-eyed Tree Frog Agalychnis callidryas9
  7. Fitzinger's Robber Frog Craugastor fitzingeri9
  8. Green Climbing Toad Incilius coniferus9
  9. Savage's Thin-toed Frog Leptodactylus savagei9
  10. Rainforest Rocket Frog Silverstoneia flotator9

Fish

  1. Black-nosed Butterflyfish Johnrandallia nigrirostris6
  2. Hancock's Blenny Acanthemblemaria hancocki6
  3. Blue-barred Parrotfish Scarus ghobban4
  4. Cortez Rainbow Wrasse Thalassoma lucasanum3
  5. Panamic Sergeant Major Abudefduf troschelii3
  6. Siebold's Cichlid Talamancaheros sieboldii3
  7. Talamancaheros underwoodi3
  8. Bigeye Trevally Caranx sexfasciatus2
  9. Pacific Cubera Snapper Lutjanus novemfasciatus2
  10. Orangeside Triggerfish Sufflamen verres2

Mollusks

  1. Spiny Cup-and-Saucer Crucibulum spinosum1
  2. Pacific Calico Scallop Argopecten ventricosus1
  3. Rough-ribbed Nerite Nerita scabricosta1
  4. Panama pearl oyster Pinctada mazatlanica1
  5. Red-rimmed Melania Melanoides tuberculata1

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.