WhenToBird

Bullock's Oriole · Icterus bullockii

When Do Orioles Arrive in Utah?

Adult male Bullock's Oriole
Photo: sprcrkwild, CC BY 4.0 via iNaturalist

Bullock's Orioles reach Utah in mid April, are common by early May, peak in mid May (24% of checklists), and most are gone by late July. They are the only regular orioles in Utah.

Orioles here are the birds (Baltimore, Orchard, Bullock's and relatives), not the baseball team.

When to look

First arrivalsApr 15-21mid April
Common byMay 1-7early May
PeakMay 15-21mid May
Most gone byJul 22-31late July

Best: mid May. First arrivals mid April; most are gone by late July. Peak: on about 24% of Utah checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Apruncommon
  5. Maypeak season
  6. Junpeak season
  7. Julcommon
  8. Auguncommon
  9. Seprare
  10. Octnot usually seen
  11. Novnot usually seen
  12. Decnot usually seen

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

Orioles in Utah, species by species

SpeciesFirst arrivalsCommon byPeakMost gone byPeak %
Bullock's OrioleApr 15-21May 1-7May 15-21Jul 22-3124%
0%10%20%30%Bullock's OrioleJanFebMarAprMayJunJulAugSepOctNovDec
  • Bullock's Oriole
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 Bullock's Oriole

Share of checklists at the peak
  1. Utah CountyBest mid May · 2219 checklists that week, 70,971 in all40%
  2. Carbon CountyBest the second week of May · 113 checklists that week, 3,753 in all40%
  3. Morgan CountyBest the second week of May · 118 checklists that week, 3,178 in all37%
  4. Wayne CountyBest the second week of May · 193 checklists that week, 4,300 in all32%
  5. Uintah CountyBest mid May · 313 checklists that week, 9,143 in all32%
  6. Duchesne CountyBest the second week of May · 47 checklists that week, 2,692 in all30%

Common questions

When do orioles arrive in Utah?
Bullock's Orioles reach Utah in mid April, are common by early May, peak in mid May (24% of checklists), and most are gone by late July. They are the only regular orioles in Utah.
When do orioles leave Utah?
Most Bullock's Orioles have left Utah by late July, when reports fall below half their usual rate. Stragglers are still reported until late August.
When is the best time to see orioles in Utah?
The Bullock's Oriole is reported most often in mid May, on about 24% of Utah checklists.