Best Time to See Ring Billed Gulls in Colorado
November, December and January is the best time to see ring billed gulls in Colorado. Based on 2,218 verified iNaturalist observations, here is exactly when ring billed gulls are most active across the year in Colorado.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 20, 2026.
Ring-billed Gull · Jared Lincenberg CC BY
Ring-billed Gull · Millie Basden CC BY
Ring-billed Gull · Bob Walker CC BY
2,218 verified observations of ring billed gulls in Colorado, recorded across 12 months of the year on iNaturalist.
When ring billed gulls are recorded in Colorado
Peak month
November
361 records (16.3% of the year)
| Month | Observations | Share |
|---|---|---|
| Januarypeak | 270 | 12.2% |
| February | 243 | 11% |
| March | 249 | 11.2% |
| April | 136 | 6.1% |
| May | 77 | 3.5% |
| June | 31 | 1.4% |
| July | 61 | 2.8% |
| August | 130 | 5.9% |
| September | 162 | 7.3% |
| October | 210 | 9.5% |
| Novemberpeak | 361 | 16.3% |
| Decemberpeak | 288 | 13% |
Ring Billed Gulls you are most likely to see
| Species | Verified observations |
|---|---|
| Ring-billed Gull | 2,218 |
Weather to expect, source Open-Meteo
Typical weather in Colorado
Recent typical conditions by month, so you can plan a trip around both when ring billed gulls are active and what the weather is doing. The best months to look for ring billed gulls sit around 5 to 40 degrees Fahrenheit, so pack for that.
| Month | Avg high | Avg low | Rain |
|---|---|---|---|
| Janbest time | 27°F | 5°F | 0.5" |
| Feb | 27°F | 3°F | 0.9" |
| Mar | 34°F | 9°F | 1.3" |
| Apr | 46°F | 20°F | 1.1" |
| May | 57°F | 31°F | 2.5" |
| Jun | 69°F | 42°F | 2.1" |
| Jul | 76°F | 49°F | 2.5" |
| Aug | 75°F | 48°F | 1.7" |
| Sep | 69°F | 41°F | 1.1" |
| Oct | 54°F | 27°F | 0.8" |
| Novbest time | 40°F | 18°F | 0.6" |
| Decbest time | 30°F | 10°F | 0.9" |
Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Colorado. Weather varies year to year, so treat these as a guide.
Sightings of ring billed gulls in Colorado peak in November, when 361 of the year's 2,218 verified observations are logged — about 16.3% of the annual total. Activity stays high through November, December and January.
The quietest stretch is June, when ring billed gulls are hardest to find — June sees just 31 records. If a reliable sighting matters, plan around the peak window rather than the off-season.
The ring billed gulls you are most likely to encounter in Colorado are Ring-billed Gull — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.
Where to go
Best places to see ring billed gulls in Colorado
- Bent's Old Fort National Historic Site — National Historic Site
- Black Canyon Of The Gunnison National Park — National Park
- Colorado National Monument — National Monument
- Curecanti National Recreation Area — National Recreation Area
- Dinosaur National Monument — National Monument
- Great Sand Dunes National Park & Preserve — National Park & Preserve
Frequently asked questions
What is the best month to see ring billed gulls in Colorado?+
November is the single best month, and the broader peak window runs through November, December and January, based on 2,218 verified iNaturalist observations.
When are ring billed gulls hardest to see in Colorado?+
June is the quietest month for ring billed gulls in Colorado, with only 31 verified records.
Are ring billed gulls active year-round in Colorado?+
Ring billed gulls are recorded in 12 of 12 months in Colorado, so they can be seen year-round, with a clear peak in November.
More wildlife in Colorado