This is a list of threatened or endangered species in the Chico area.
- Adobe-Lily
- Ahart’s Dwarf Rush
- Ahart’s Paronychia
- Bald Eagle
- Bank Swallow
- Big-Scale Balsamroot
- Black Swift
- Brittlescale
- Burrowing Owl
- Butte County Checkerbloom
- Butte County Fritillary
- Butte County Golden Clover
- Butte County Meadowfoam
- California Beaked-Rush
- California Black Rail
- California Linderiella
- California Red-Legged Frog
- California Tiger Salamander
- Cantelow’s Lewisia
- Closed-Throated Beardtongue
- Conservancy Fairy Shrimp
- Cut-Leaved Ragwort
- Enterprise Clarkia
- Feather River Stonecrop
- Ferris’s Milk-Vetch
- Four-Angled Spikerush
- Fox Sedge
- Giant Garter Snake
- Great Blue Heron
- Great Egret
- Greene’s Tuctoria
- Hairy Orcutt Grass
- Hall’s Rupertia
- Heartscale
- Henderson’s Bent Grass
- Hoover’s Spurge
- Jepson’s Onion
- Lesser Saltscale
- Long-Leaved Starwort
- Mosquin’s Clarkia
- Northern Goshawk
- Northern Harrier
- Northwestern Pond Turtle
- Obtuse Starwort
- Osprey
- Pacific Fisher
- Recurved Larkspur
- Red Bluff Dwarf Rush
- Rose-Mallow
- Sanford’s Arrowhead
- Scalloped Moonwort
- Shore Sedge
- Spring-Run Chinook Salmon
- Swainson’s Hawk
- Tracy’s Sanicle
- Tricolored Blackbird
- Valley Elderberry Longhorn Beetle
- Veiny Monardella
- Vernal Pool Fairy Shrimp
- Vernal Pool Tadpole Shrimp
- Water Bulrush
- Western Goblin
- Western Yellow-Billed Cuckoo
- White-Stemmed Clarkia
- Woolly Meadowfoam
- Woolly Violet