WhenToBird

Turdus migratorius · Turdidae

When Do American Robins Arrive in Arizona?

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

American Robins are in Arizona all year, but most are here in summer: numbers build from late April, peak in the second week of June (17% of checklists), and fall back by mid July. In the quietest week (early October) they are still on about 5.6% of checklists.

When to look

Numbers buildApr 22-30late April
PeakJun 8-14the second week of June
Fall back byJul 15-21mid July
FewestOct 1-7early October

Best: the second week of June. Here all year; numbers build from late April and fall back by mid July. Peak: on about 17% of Arizona checklists.

  1. Jancommon
  2. Febcommon
  3. Marcommon
  4. Aprcommon
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepuncommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%5%10%15%20%Jan 1-7: 8.2% of 34758 checklistsJan 8-14: 8.7% of 29835 checklistsJan 15-21: 7.6% of 29279 checklistsJan 22-31: 8.7% of 39716 checklistsFeb 1-7: 8.9% of 27299 checklistsFeb 8-14: 9.0% of 28703 checklistsFeb 15-21: 8.9% of 35357 checklistsFeb 22-28: 8.6% of 29889 checklistsMar 1-7: 9.7% of 29932 checklistsMar 8-14: 9.2% of 32982 checklistsMar 15-21: 9.0% of 34731 checklistsMar 22-31: 9.1% of 50213 checklistsApr 1-7: 9.2% of 35788 checklistsApr 8-14: 10% of 38087 checklistsApr 15-21: 11% of 41520 checklistsApr 22-30: 12% of 55218 checklistsMay 1-7: 12% of 39688 checklistsMay 8-14: 14% of 39398 checklistsMay 15-21: 15% of 29562 checklistsMay 22-31: 16% of 36774 checklistsJun 1-7: 16% of 21313 checklistsJun 8-14: 17% of 19129 checklistsJun 15-21: 17% of 17922 checklistsJun 22-30: 16% of 21188 checklistsJul 1-7: 15% of 17325 checklistsJul 8-14: 15% of 16463 checklistsJul 15-21: 12% of 18642 checklistsJul 22-31: 10% of 31215 checklistsAug 1-7: 9.6% of 28163 checklistsAug 8-14: 7.7% of 31329 checklistsAug 15-21: 6.9% of 23878 checklistsAug 22-31: 5.8% of 28508 checklistsSep 1-7: 5.9% of 20878 checklistsSep 8-14: 6.2% of 19671 checklistsSep 15-21: 5.9% of 19859 checklistsSep 22-30: 5.9% of 25179 checklistsOct 1-7: 5.4% of 19420 checklistsOct 8-14: 5.3% of 21925 checklistsOct 15-21: 6.5% of 20995 checklistsOct 22-31: 8.6% of 29258 checklistsNov 1-7: 9.1% of 21269 checklistsNov 8-14: 8.4% of 22753 checklistsNov 15-21: 8.4% of 21982 checklistsNov 22-30: 7.9% of 29475 checklistsDec 1-7: 7.2% of 20810 checklistsDec 8-14: 7.7% of 22229 checklistsDec 15-21: 8.7% of 25148 checklistsDec 22-31: 8.6% of 39567 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 Arizona 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 Arizona

Best counties

Share of checklists at the peak
  1. Apache CountyBest early July · 326 checklists that week, 12,931 in all52%
  2. Greenlee CountyBest the second week of June · 95 checklists that week, 2,745 in all44%
  3. Coconino CountyBest mid June · 1922 checklists that week, 90,870 in all42%
  4. Navajo CountyBest late November · 283 checklists that week, 18,838 in all39%
  5. Yavapai CountyBest late June · 1356 checklists that week, 83,606 in all32%
  6. Gila CountyBest mid February · 345 checklists that week, 14,834 in all26%

Best spots

Share of checklists at the peak
  1. Upper Rustler SpringCochise County, best late June · 35 checklists that week, 1,976 in all94%
  2. Domingo TankCoconino County, best late May · 21 checklists that week, 144 in all93%
  3. Cave SpringCoconino County, best early July · 23 checklists that week, 1,635 in all92%
  4. Red Rock-Secret Mountain WildernessCoconino County, best the second week of May · 21 checklists that week, 517 in all91%
  5. Woods Canyon LakeCoconino County, best late May · 25 checklists that week, 287 in all90%

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

Best time of day

In Arizona, the American Robin is most often listed on checklists started between 7 and 9 am (12% of those checklists).

0%5%10%15%12 am: too few checklists (488) to judge1 am: too few checklists (503) to judge2 am: too few checklists (489) to judge3 am: too few checklists (735) to judge4 am: too few checklists (4115) to judge5 am: 11% of 38350 checklists6 am: 11% of 118786 checklists7 am: 12% of 183415 checklists8 am: 12% of 187346 checklists9 am: 11% of 151342 checklists10 am: 9.4% of 124522 checklists11 am: 8.5% of 97088 checklists12 pm: 8.2% of 78110 checklists1 pm: 8.1% of 73059 checklists2 pm: 7.9% of 68912 checklists3 pm: 7.9% of 68060 checklists4 pm: 8.0% of 69387 checklists5 pm: 7.1% of 52951 checklists6 pm: 6.5% of 31061 checklists7 pm: too few checklists (16076) to judge8 pm: too few checklists (5352) to judge9 pm: too few checklists (2369) to judge10 pm: too few checklists (1100) to judge11 pm: too few checklists (604) 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
January8.2%8.7%7.6%8.7%
February8.9%9.0%8.9%8.6%
March9.7%9.2%9.0%9.1%
April9.2%10%11%12%
May12%14%15%16%
June16%17%17%16%
July15%15%12%10%
August9.6%7.7%6.9%5.8%
September5.9%6.2%5.9%5.9%
October5.4%5.3%6.5%8.6%
November9.1%8.4%8.4%7.9%
December7.2%7.7%8.7%8.6%

Neighboring states

  • New Mexico: year-round, peaks late October
  • Nevada: year-round, peaks late June
  • Utah: arrives mid March, 5 weeks earlier than Arizona
  • California: arrives mid January, 13 weeks earlier than Arizona

Common questions

When do American Robins arrive in Arizona?
American Robins are in Arizona all year, but most are here in summer: numbers build from late April, peak in the second week of June (17% of checklists), and fall back by mid July. In the quietest week (early October) they are still on about 5.6% of checklists.
When do American Robins leave Arizona?
American Robins never fully leave Arizona: numbers fall back below half their usual rate by mid July, but some are still reported in every week, about 5.6% of checklists at the low.
When is the best time to see a American Robin in Arizona?
The American Robin is reported most often in the second week of June, on about 17% of Arizona checklists.
Where in Arizona are American Robins seen most often?
By county, Apache County, Greenlee County, and Coconino County have the highest peak reporting rates for the American Robin (counties with at least 200 checklists).