Hummingbirds in Colorado in May
Yes, May is a good month to see hummingbirds in Colorado. It is the 4th busiest month of the year, with 1,348 of the 8,134 sightings logged across the year (16.6%), based on verified iNaturalist records.
By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 30, 2026.
Good month for hummingbirds in Colorado
16.6%
of yearly sightings
1,348
records in May
#4
busiest month of 12
8,134
verified records a year
April 2.1%, May 16.6%, June 18.8%. Busiest month is July at 29.2%.
8,134 verified observations of hummingbirds in Colorado, recorded across 11 months of the year on iNaturalist.
When hummingbirds are recorded in Colorado
Peak month
July
2,372 records (29.2% of the year)
| Month | Observations | Share |
|---|---|---|
| January | 0 | 0% |
| February | 1 | 0% |
| March | 10 | 0.1% |
| April | 170 | 2.1% |
| May | 1,348 | 16.6% |
| Junepeak | 1,531 | 18.8% |
| Julypeak | 2,372 | 29.2% |
| Augustpeak | 2,070 | 25.4% |
| September | 583 | 7.2% |
| October | 44 | 0.5% |
| November | 2 | 0% |
| December | 3 | 0% |
Hummingbirds you are most likely to see
| Species | Verified observations |
|---|---|
| Broad-tailed Hummingbird | 4,749 |
| Black-chinned Hummingbird | 1,110 |
| Rufous Hummingbird | 867 |
| Calliope Hummingbird | 318 |
| Anna's Hummingbird | 14 |
| Ruby-throated Hummingbird | 12 |
| Rivoli's Hummingbird | 4 |
| Costa's Hummingbird | 2 |
In Colorado, May carries 16.6% of the year's hummingbirds sightings, about 8.3 points above an even month-to-month split. That makes it the 4th busiest of the twelve months, out of 11 months with recorded activity.
Activity is rising from April (2.1%) into May, and it heads toward June (18.8%) after. The busiest month is July (29.2%), so if timing is flexible, that window is the safer bet.
The hummingbirds most often recorded in Colorado are Broad-tailed Hummingbird, Black-chinned Hummingbird and Rufous Hummingbird. Those counts are annual totals rather than a May split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in May itself.
Which hummingbirds you are most likely to see
- Broad-tailed Hummingbird4,749 records
- Black-chinned Hummingbird1,110 records
- Rufous Hummingbird867 records
- Calliope Hummingbird318 records
- Anna's Hummingbird14 records
- Ruby-throated Hummingbird12 records
Plan your hummingbird trip in Colorado
Start with live tours near Bent's Old Fort National Historic Site, then compare a nearby stay and a broader wildlife backup before you lock in the trip.
GetYourGuide
Live tours nearbySee live tours near Bent's Old Fort National Historic Site
Use the live GetYourGuide widget to compare local departures and activity styles close to the main hummingbird viewing area.
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Stay nearbyStay near Bent's Old Fort National Historic Site
Compare hotels, cabins and lodges close to the best hummingbird viewing area in Colorado.
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Broader backupBook a hummingbird tour in Colorado
Compare guided wildlife tours, boat trips and nature experiences if you want a second travel network beyond the live widget.
Gear to see them
Frequently asked questions
Can you see hummingbirds in Colorado in May?+
Yes. May accounts for 1,348 of the 8,134 verified hummingbirds sightings logged in Colorado across the year, which is 16.6% of the annual total.
Is May a good time to see hummingbirds in Colorado?+
May is the 4th busiest month. It is workable, though July and August is the stronger window for a reliable sighting.
What month is best for hummingbirds in Colorado?+
July is the single busiest month, with the broader peak running through July, August and June, based on 8,134 verified observations.
Which hummingbirds are you most likely to see in Colorado?+
The most-recorded species in Colorado are Broad-tailed Hummingbird, Black-chinned Hummingbird and Rufous Hummingbird, based on all-time iNaturalist counts.
See hummingbirds in Colorado in other months
More places to see hummingbirds
More wildlife in Colorado