KnowKi

Learn the wildlife of the U.S. national parks

Learn the wildlife of Saguaro National Park

AZ

2,353 species have research-grade observations inside Saguaro 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. Black-throated Sparrow Amphispiza bilineata497
  2. Gila Woodpecker Melanerpes uropygialis465
  3. Cactus Wren Campylorhynchus brunneicapillus443
  4. Curve-billed Thrasher Toxostoma curvirostre379
  5. Purple Martin Progne subis267
  6. Pyrrhuloxia Cardinalis sinuatus241
  7. Canyon Towhee Melozone fusca232
  8. Rufous-winged Sparrow Peucaea carpalis230
  9. Verdin Auriparus flaviceps202
  10. Phainopepla Phainopepla nitens196

Plants

  1. Saguaro Carnegiea gigantea4,490
  2. Chain-fruit Cholla Cylindropuntia fulgida1,491
  3. Ocotillo Fouquieria splendens1,400
  4. Graham's nipple cactus Cochemiea grahamii1,347
  5. Creosote Bush Larrea tridentata964
  6. Engelmann's Hedgehog Cactus Echinocereus engelmannii919
  7. Christmas cholla Cylindropuntia leptocaulis723
  8. Brittlebush Encelia farinosa718
  9. Teddybear Cholla Cylindropuntia bigelovii698
  10. Little-leaved palo verde Parkinsonia microphylla695

Mammals

  1. Black-tailed Jackrabbit Lepus californicus372
  2. Desert Cottontail Sylvilagus audubonii357
  3. Coyote Canis latrans339
  4. Gray Fox Urocyon cinereoargenteus304
  5. Mule Deer Odocoileus hemionus255
  6. Harris' Antelope Squirrel Ammospermophilus harrisii237
  7. Collared Peccary Pecari tajacu183
  8. Rock Squirrel Otospermophilus variegatus99
  9. Bobcat Lynx rufus93
  10. White-tailed Deer Odocoileus virginianus75

Insects

  1. Empress Leilia Asterocampa leilia482
  2. American Snout Libytheana carinenta404
  3. Ceraunus Blue Hemiargus ceraunus269
  4. Dainty Sulphur Nathalis iole242
  5. Marine Blue Leptotes marina226
  6. Reakirt's Blue Echinargus isola207
  7. Western Honey Bee Apis mellifera187
  8. Gray Hairstreak Strymon melinus173
  9. Queen Danaus gilippus169
  10. Tiny Checkerspot Microtia dymas164

Spiders and kin

  1. Desert Blonde Tarantula Aphonopelma chalcodes238
  2. Stripe-tailed Scorpion Paravaejovis spinigerus186
  3. Green Lynx Spider Peucetia viridans62
  4. Desert Hairy Scorpion Hadrurus arizonensis54
  5. Arizona Bark Scorpion Centruroides sculpturatus44
  6. Carolina Wolf Spider Hogna carolinensis35
  7. Superstition Mountains Scorpion Superstitionia donensis31
  8. Western Spotted Orbweaver Neoscona oaxacensis30
  9. Giant Crab Spider Olios giganteus30
  10. Tucson Bronze Tarantula Aphonopelma vorhiesi28

Reptiles

  1. Zebra-tailed Lizard Callisaurus draconoides765
  2. Common Side-blotched Lizard Uta stansburiana555
  3. Western Diamond-backed Rattlesnake Crotalus atrox445
  4. Greater Earless Lizard Cophosaurus texanus223
  5. Western Whiptail Aspidoscelis tigris204
  6. Desert Spiny Lizard Sceloporus magister190
  7. Desert Iguana Dipsosaurus dorsalis141
  8. Regal Horned Lizard Phrynosoma solare134
  9. Gopher Snake Pituophis catenifer112
  10. Ornate Tree Lizard Urosaurus ornatus95

Amphibians

  1. Red-spotted Toad Anaxyrus punctatus233
  2. Sonoran Desert Toad Incilius alvarius132
  3. Canyon Tree Frog Dryophytes arenicolor126
  4. Couch's Spadefoot Scaphiopus couchii40

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 National Park Service. Free, with no ads, no account and no purchases.