WhenToBird

2 bluebird species in Utah

When Do Bluebirds Arrive in Utah?

Adult male Mountain Bluebird
Photo: Josiah Londerée, CC BY 4.0 via iNaturalist

Mountain Bluebirds and Western Bluebirds are the bluebirds you are most likely to see in Utah. Mountain Bluebirds reach Utah in late February, are common by early March, peak in late June (5.5% of checklists), and most are gone by late October.

When to look

First arrivalsFeb 22-28late February
Common byMar 1-7early March
PeakJun 22-30late June
Most gone byOct 22-31late October

Best: late June. First arrivals late February; most are gone by late October. Peak: on about 5.5% of Utah checklists.

  1. Januncommon
  2. Febuncommon
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novuncommon
  12. Decuncommon

Darker months: more checklists report it. Outlined: peak month.

Bluebirds in Utah, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
Mountain BluebirdFeb 22-28Mar 1-7Jun 22-30Oct 22-315.5%
Western BluebirdJan 15-21Jan 15-21Sep 15-21Dec 22-312.6%
0%2%4%6%Mountain BluebirdWestern BluebirdJanFebMarAprMayJunJulAugSepOctNovDec
  • Mountain Bluebird
  • Western Bluebird
Share of complete checklists reporting each species, by week (4 per month). Gaps: fewer than 10 checklists that week.

Frequency is the share of complete checklists in Utah that listed the bird, 2016–2025. It is not a head count, and it follows where and when people go birding. How to read it.

Where in Utah

Best counties for Mountain Bluebird

Share of checklists at the peak
  1. Daggett CountyBest the second week of April · 27 checklists that week, 1,885 in all34%
  2. Duchesne CountyBest late March · 53 checklists that week, 2,692 in all30%
  3. Piute CountyBest late March · 14 checklists that week, 1,035 in all29%
  4. Emery CountyBest the second week of March · 55 checklists that week, 2,339 in all22%
  5. San Juan CountyBest mid March · 131 checklists that week, 6,877 in all22%
  6. Uintah CountyBest the second week of November · 99 checklists that week, 9,143 in all21%

Common questions

When do bluebirds arrive in Utah?
Mountain Bluebirds reach Utah in late February, are common by early March, peak in late June (5.5% of checklists), and most are gone by late October.
When do bluebirds leave Utah?
Most Mountain Bluebirds have left Utah by late October, when reports fall below half their usual rate. Stragglers are still reported until early December.
When is the best time to see bluebirds in Utah?
The Mountain Bluebird is reported most often in late June, on about 5.5% of Utah checklists.
Which bluebirds are in Utah?
Mountain Bluebird and Western Bluebird are reported regularly; the Mountain Bluebird is the most common.