Learn the wildlife of the Madrean Pine-Oak Woodlands
Mexico · Southwestern United States
Mhe Madrean Pine-Oak Woodlands is one of E.O. Wilson's Key Places, irreplaceable for life on Earth. 14,982 species have research-grade observations there on iNaturalist, and KnowKi turns the most recorded into short lessons with real photos.
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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
- Vermilion Flycatcher Pyrocephalus rubinus7,518
- Broad-billed Hummingbird Cynanthus latirostris7,425
- Mourning Dove Zenaida macroura5,764
- House Finch Haemorhous mexicanus5,581
- Gila Woodpecker Melanerpes uropygialis5,528
- Lesser Goldfinch Spinus psaltria5,366
- Red-tailed Hawk Buteo jamaicensis4,892
- Curve-billed Thrasher Toxostoma curvirostre4,836
- Acorn Woodpecker Melanerpes formicivorus4,811
- Mexican Jay Aphelocoma wollweberi4,700
Plants
- Saguaro Carnegiea gigantea23,462
- Fishhook barrel cactus Ferocactus wislizeni19,388
- Creosote Bush Larrea tridentata16,776
- Ocotillo Fouquieria splendens11,884
- Soaptree yucca Yucca elata8,423
- Chain-fruit Cholla Cylindropuntia fulgida7,374
- Graham's nipple cactus Cochemiea grahamii7,119
- Engelmann's Hedgehog Cactus Echinocereus engelmannii5,400
- Palmer's agave Agave palmeri4,855
- Tree cholla Cylindropuntia imbricata4,759
Mammals
- White-tailed Deer Odocoileus virginianus7,306
- Collared Peccary Pecari tajacu4,047
- Desert Cottontail Sylvilagus audubonii3,710
- Rock Squirrel Otospermophilus variegatus3,519
- Coyote Canis latrans3,154
- Arizona Gray Squirrel Sciurus arizonensis2,432
- Bobcat Lynx rufus2,431
- White-nosed Coati Nasua narica2,391
- Cliff Chipmunk Neotamias dorsalis2,349
- American Black Bear Ursus americanus2,104
Insects
- Queen Danaus gilippus4,679
- Pipevine Swallowtail Battus philenor4,607
- White-lined Sphinx Hyles lineata3,878
- Marine Blue Leptotes marina3,819
- American Snout Libytheana carinenta3,785
- Western Honey Bee Apis mellifera3,434
- Empress Leilia Asterocampa leilia2,822
- Bordered Patch Chlosyne lacinia2,662
- Flame Skimmer Libellula saturata2,643
- Painted Lady Vanessa cardui2,544
Spiders and kin
- Desert Blonde Tarantula Aphonopelma chalcodes3,336
- Stripe-tailed Scorpion Paravaejovis spinigerus2,711
- Western Black Widow Latrodectus hesperus1,373
- Giant Crab Spider Olios giganteus1,371
- Western Spotted Orbweaver Neoscona oaxacensis1,279
- Arizona Bark Scorpion Centruroides sculpturatus1,198
- Tohono Vinegaroon Mastigoproctus tohono768
- Phidippus carneus581
Reptiles
- Western Diamond-backed Rattlesnake Crotalus atrox9,082
- Yarrow's Spiny Lizard Sceloporus jarrovii6,346
- Ornate Tree Lizard Urosaurus ornatus5,629
- Desert Spiny Lizard Sceloporus magister5,213
- Clark's Spiny Lizard Sceloporus clarkii3,593
- Gopher Snake Pituophis catenifer3,447
- Western Black-tailed Rattlesnake Crotalus molossus3,344
- Zebra-tailed Lizard Callisaurus draconoides3,138
- Sonoran Spotted Whiptail Aspidoscelis sonorae2,487
- Common Side-blotched Lizard Uta stansburiana2,406
Amphibians
- Sonoran Desert Toad Incilius alvarius3,633
- Red-spotted Toad Anaxyrus punctatus3,201
- Canyon Tree Frog Dryophytes arenicolor2,965
- Couch's Spadefoot Scaphiopus couchii2,930
- American Bullfrog Lithobates catesbeianus1,763
- Great Plains Toad Anaxyrus cognatus1,244
- Chiricahua Leopard Frog Lithobates chiricahuensis1,142
- Mexican Spadefoot Spea multiplicata822
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.
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.