a small bird sitting on top of a rock

Rocky Mountain Arsenal National Wildlife Refuge

Colorado · Rocky Mountains

Habitat
MountainWetland
Best Seasons
Difficulty

Challenging

Best Months

June-October

Entrance Fee

Free

Hours

Open daily, sunrise to sunset; visitor center Wed-Sun 9 AM - 4 PM

About This Location

Rocky Mountain Arsenal National Wildlife Refuge is a productive birding destination in Colorado, with 284 species recorded on eBird. This mountain and wetland habitat attracts Wild Turkey, Canada Goose, and Northern Shoveler among many others. Elevation changes create diverse habitats, from riparian valleys to alpine meadows, supporting a wide range of species.

Location

Loading map...

Notable Species

Live Bird Data

Powered by eBird / Cornell Lab of Ornithology

Notable Sightings

Rare or unusual species spotted nearby in the last 14 days

Black Phoebe

Sayornis nigricans

5/31/2026South Platte Park--Carson Nature Center5 observed

Mountain Bluebird

Sialia currucoides

5/31/2026CommonGround (Westerly) Wetlands2 observed

Long-billed Dowitcher

Limnodromus scolopaceus

5/31/2026CommonGround (Westerly) Wetlands4 observed

Eastern Warbling Vireo

Vireo gilvus

5/31/2026Rocky Mountain Arsenal NWR (Please use more specific locations)1 observed

Calliope Hummingbird

Selasphorus calliope

5/31/20265440 S Perry St, Littleton US-CO (39.6185,-105.0431)1 observed

Bonaparte's Gull

Chroicocephalus philadelphia

5/31/2026Cherry Creek SP--Prairie Loop1 observed

Sharp-shinned Hawk

Accipiter striatus

5/31/2026Cherry Creek SP--Prairie Loop1 observed

Neotropic Cormorant

Nannopterum brasilianum

5/31/2026Cherry Creek SP--Marina & nearby Dam Trail1 observed

Indigo Bunting

Passerina cyanea

5/31/2026Rocky Mountain Arsenal NWR--Havana Ponds and Trail1 observed

Baltimore Oriole

Icterus galbula

5/31/2026Rocky Mountain Arsenal NWR--Havana Ponds and Trail1 observed

White-rumped Sandpiper

Calidris fuscicollis

5/31/2026Cherry Creek SP--Pelican Point area2 observed

Recent Observations

Species reported at this location in the last 14 days

Canada Goose

25/31/2026

Eurasian Collared-Dove

15/31/2026

Mourning Dove

25/31/2026

Black-chinned Hummingbird

15/31/2026

American Coot

45/31/2026

Pied-billed Grebe

15/31/2026

Swainson's Hawk

15/31/2026

Red-tailed Hawk

25/31/2026

Say's Phoebe

15/31/2026

Cassin's Kingbird

15/31/2026

Western Kingbird

35/31/2026

Black-billed Magpie

15/31/2026

Horned Lark

45/31/2026

Tree Swallow

25/31/2026

Barn Swallow

505/31/2026

Cliff Swallow

805/31/2026

European Starling

805/31/2026

House Sparrow

15/31/2026

House Finch

75/31/2026

Chipping Sparrow

15/31/2026

Birding Tips

  1. 1

    Bring layers as mountain weather changes rapidly at elevation.

  2. 2

    Check exposed ridges and thermals for soaring raptors and swifts.

  3. 3

    Acclimate to altitude before hiking to high-elevation birding spots.

  4. 4

    Stop at the visitor center for current bird sighting reports and trail maps.

  5. 5

    Check the refuge website for seasonal road and trail closures before visiting.

Frequently Asked Questions

When is the best time to visit Rocky Mountain Arsenal National Wildlife Refuge for birding?
The best months to visit Rocky Mountain Arsenal National Wildlife Refuge for birding are June-October. The best seasons are Summer and Fall.
What birds can I see at Rocky Mountain Arsenal National Wildlife Refuge?
Notable species at Rocky Mountain Arsenal National Wildlife Refuge include Wild Turkey, Canada Goose, Northern Shoveler, Gadwall, American Wigeon, Hooded Merganser, Cinnamon Teal, Mallard, Green-winged Teal, Ring-necked Duck, Bufflehead, Common Goldeneye. The area supports mountain, wetland habitats.
How difficult is birding at Rocky Mountain Arsenal National Wildlife Refuge?
Birding at Rocky Mountain Arsenal National Wildlife Refuge is rated as Challenging. The terrain can be challenging and may require good physical fitness and preparation.
Is there an entrance fee at Rocky Mountain Arsenal National Wildlife Refuge?
There is no entrance fee at Rocky Mountain Arsenal National Wildlife Refuge. Hours: Open daily, sunrise to sunset; visitor center Wed-Sun 9 AM - 4 PM.
What amenities are available at Rocky Mountain Arsenal National Wildlife Refuge?
Rocky Mountain Arsenal National Wildlife Refuge offers the following amenities: Parking, Restrooms, Trails, Auto Tour Route.