WhenToBird

Turdus migratorius · Turdidae

When Do American Robins Arrive in Utah?

Adult male American Robin
Photo: northerly, CC BY 4.0 via iNaturalist

American Robins are in Utah all year, but most are here in spring: numbers build from mid March, peak in mid June (56% of checklists), and fall back by mid July. In the quietest week (late August) they are still on about 22% of checklists.

When to look

Numbers buildMar 15-21mid March
PeakJun 15-21mid June
Fall back byJul 15-21mid July
FewestAug 22-31late August

Best: mid June. Here all year; numbers build from mid March and fall back by mid July. Peak: on about 56% of Utah checklists.

  1. Jancommon
  2. Febcommon
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%20%40%60%Jan 1-7: 29% of 10857 checklistsJan 8-14: 28% of 8333 checklistsJan 15-21: 28% of 8360 checklistsJan 22-31: 29% of 10516 checklistsFeb 1-7: 28% of 7416 checklistsFeb 8-14: 28% of 8082 checklistsFeb 15-21: 30% of 9643 checklistsFeb 22-28: 31% of 7960 checklistsMar 1-7: 34% of 7998 checklistsMar 8-14: 36% of 8581 checklistsMar 15-21: 41% of 8637 checklistsMar 22-31: 43% of 13006 checklistsApr 1-7: 43% of 10562 checklistsApr 8-14: 42% of 11694 checklistsApr 15-21: 45% of 11382 checklistsApr 22-30: 48% of 16626 checklistsMay 1-7: 50% of 13523 checklistsMay 8-14: 51% of 14714 checklistsMay 15-21: 53% of 13711 checklistsMay 22-31: 54% of 16546 checklistsJun 1-7: 55% of 10284 checklistsJun 8-14: 55% of 9530 checklistsJun 15-21: 57% of 8854 checklistsJun 22-30: 56% of 10566 checklistsJul 1-7: 53% of 7987 checklistsJul 8-14: 48% of 7471 checklistsJul 15-21: 45% of 7240 checklistsJul 22-31: 38% of 9329 checklistsAug 1-7: 29% of 6521 checklistsAug 8-14: 25% of 6423 checklistsAug 15-21: 23% of 6208 checklistsAug 22-31: 21% of 9089 checklistsSep 1-7: 22% of 7081 checklistsSep 8-14: 23% of 7306 checklistsSep 15-21: 24% of 7208 checklistsSep 22-30: 26% of 8876 checklistsOct 1-7: 29% of 7265 checklistsOct 8-14: 27% of 7226 checklistsOct 15-21: 29% of 7007 checklistsOct 22-31: 28% of 8443 checklistsNov 1-7: 26% of 6711 checklistsNov 8-14: 28% of 6290 checklistsNov 15-21: 28% of 6169 checklistsNov 22-30: 28% of 8228 checklistsDec 1-7: 30% of 6011 checklistsDec 8-14: 29% of 6044 checklistsDec 15-21: 34% of 6721 checklistsDec 22-31: 29% of 9982 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Share of complete checklists reporting it, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

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.

JanFebMarAprMayJunJulAugSepOctNovDec
today
Second week of November

Each county is shaded by the share of complete checklists there that listed the bird, blended with the weeks either side. Darker is more often. It follows where people watch birds, not how many birds there are. How to read it.

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Where in Utah

Best counties

Share of checklists at the peak
  1. Morgan CountyBest early June · 143 checklists that week, 3,178 in all74%
  2. Wasatch CountyBest late May · 409 checklists that week, 7,780 in all74%
  3. Cache CountyBest mid June · 438 checklists that week, 21,769 in all74%
  4. Summit CountyBest late June · 554 checklists that week, 13,829 in all72%
  5. Duchesne CountyBest mid June · 100 checklists that week, 2,692 in all68%
  6. Salt Lake CountyBest the second week of June · 2236 checklists that week, 104,432 in all66%

Best spots

Share of checklists at the peak
  1. 10th West ParkCache County, best late June · 22 checklists that week, 771 in all100%
  2. State of Utah Department of Natural Resources 3Salt Lake County, best the second week of March · 20 checklists that week, 1,183 in all100%
  3. Big Cottonwood ParkSalt Lake County, best late February · 59 checklists that week, 3,275 in all99%
  4. Lake SolitudeSalt Lake County, best the second week of July · 27 checklists that week, 171 in all99%

Busy spots report more of everything; compare the checklist counts before you drive anywhere.

Best time of day

In Utah, the American Robin is most often listed on checklists started between 6 and 8 am (51% of those checklists).

0%20%40%60%12 am: too few checklists (242) to judge1 am: too few checklists (178) to judge2 am: too few checklists (169) to judge3 am: too few checklists (162) to judge4 am: too few checklists (284) to judge5 am: too few checklists (1984) to judge6 am: 55% of 11714 checklists7 am: 49% of 33209 checklists8 am: 44% of 46944 checklists9 am: 39% of 46290 checklists10 am: 35% of 43144 checklists11 am: 32% of 36893 checklists12 pm: 31% of 32758 checklists1 pm: 30% of 30142 checklists2 pm: 30% of 29414 checklists3 pm: 33% of 29491 checklists4 pm: 36% of 29154 checklists5 pm: 41% of 22256 checklists6 pm: 43% of 17383 checklists7 pm: 45% of 13099 checklists8 pm: too few checklists (6647) to judge9 pm: too few checklists (1753) to judge10 pm: too few checklists (599) to judge11 pm: too few checklists (307) to judge12a3a6a9a12p3p6p9p
Share of checklists started in each local hour that reported it. It reflects when people go birding as well as when birds are active. Grey hours have too few checklists (under 2% of the state’s, or under 200) to judge.
Week-by-week table
MonthDays 1-78-1415-2122-end
January29%28%28%29%
February28%28%30%31%
March34%36%41%43%
April43%42%45%48%
May50%51%53%54%
June55%55%57%56%
July53%48%45%38%
August29%25%23%21%
September22%23%24%26%
October29%27%29%28%
November26%28%28%28%
December30%29%34%29%

Neighboring states

  • Wyoming: arrives late March, 1 week later than Utah
  • Nevada: year-round, peaks late June
  • Colorado: arrives mid March, in the same week than Utah
  • Idaho: arrives mid March, in the same week than Utah

Common questions

When do American Robins arrive in Utah?
American Robins are in Utah all year, but most are here in spring: numbers build from mid March, peak in mid June (56% of checklists), and fall back by mid July. In the quietest week (late August) they are still on about 22% of checklists.
When do American Robins leave Utah?
American Robins never fully leave Utah: numbers fall back below half their usual rate by mid July, but some are still reported in every week, about 22% of checklists at the low.
When is the best time to see a American Robin in Utah?
The American Robin is reported most often in mid June, on about 56% of Utah checklists.
Where in Utah are American Robins seen most often?
By county, Morgan County, Wasatch County, and Cache County have the highest peak reporting rates for the American Robin (counties with at least 200 checklists).