Download a professional PDF field guide featuring all the species found in Fort Collins. Perfect for outdoor adventures, education, and nature exploration.
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Showing 20 most frequently observed species out of 68 total documented species.


Greek Milkweed

Sand-Lily

Mountain-Mahogany

Hunt Bumble Bee
Great Blue Heron

Golden Currant
American Robin

Oleaster
Canada Goose
House Finch
Two-Tailed Swallowtail
Mallard
Black-Tailed Prairie Dog
Chicken Hawk
Cat Squirrel

Moss-Rose
Bold Jumper

Get all 68 species with 3-4 high-quality images each, detailed descriptions, and a downloadable PDF for offline use.
Compared to 8 nearby locations in Larimer County County, Colorado
These comparisons are based on documented wildlife observations from citizen science data. Locations with higher species counts may have more observation activity, different habitat types, or larger coverage areas. Regional rankings help identify biodiversity hotspots and unique natural areas within Larimer County County.
The Fort Collins ecosystem supports 68 documented wildlife species across 60 taxonomic genera. Located in Larimer County, Colorado, this area provides critical habitat with diverse natural communities. The location hosts 14 frequently observed species and 13 occasionally documented species, creating a balanced ecosystem with both resident and visiting wildlife. While Loveland nearby has 12% more documented species, Fort Collins offers unique wildlife observation opportunities.