WhenToBird

Passerella iliaca · Passerellidae

When Do Fox Sparrows Arrive in Minnesota?

Adult Fox Sparrow
Photo: Kevin Krebs, CC BY 4.0 via iNaturalist

Fox Sparrows arrive in Minnesota in the second week of March, peak in the second week of April (12% of checklists), and most are gone by early May.

When to look

First arrivalsMar 8-14the second week of March
Common byMar 8-14the second week of March
PeakApr 8-14the second week of April
Most gone byMay 1-7early May

Best: the second week of April. First arrivals the second week of March; most are gone by early May. Peak: on about 12% of Minnesota checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marcommon
  4. Aprpeak season
  5. Mayrare
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepuncommon
  10. Octpeak season
  11. Novcommon
  12. Decrare

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

0%5%10%15%Jan 1-7: 0.4% of 20628 checklistsJan 8-14: 0.4% of 14594 checklistsJan 15-21: 0.4% of 14238 checklistsJan 22-31: 0.2% of 20725 checklistsFeb 1-7: 0.3% of 14484 checklistsFeb 8-14: 0.3% of 15988 checklistsFeb 15-21: 0.2% of 20718 checklistsFeb 22-28: 0.2% of 15754 checklistsMar 1-7: 0.4% of 16125 checklistsMar 8-14: 1.1% of 19035 checklistsMar 15-21: 2.3% of 19586 checklistsMar 22-31: 4.9% of 30192 checklistsApr 1-7: 11% of 24262 checklistsApr 8-14: 14% of 30223 checklistsApr 15-21: 10% of 29085 checklistsApr 22-30: 4.1% of 43574 checklistsMay 1-7: 0.8% of 39300 checklistsMay 8-14: 0.1% of 45927 checklistsMay 15-21: 0.1% of 36632 checklistsMay 22-31: 0.1% of 43809 checklistsJun 1-7: 0% of 23418 checklistsJun 8-14: 0% of 20450 checklistsJun 15-21: 0% of 19470 checklistsJun 22-30: 0% of 23418 checklistsJul 1-7: 0% of 19104 checklistsJul 8-14: 0% of 16927 checklistsJul 15-21: 0% of 15635 checklistsJul 22-31: 0% of 22073 checklistsAug 1-7: 0% of 16255 checklistsAug 8-14: 0% of 16840 checklistsAug 15-21: 0% of 17475 checklistsAug 22-31: 0% of 26545 checklistsSep 1-7: 0% of 20750 checklistsSep 8-14: 0.1% of 18494 checklistsSep 15-21: 0.2% of 18215 checklistsSep 22-30: 2.0% of 24463 checklistsOct 1-7: 6.5% of 18252 checklistsOct 8-14: 11% of 19527 checklistsOct 15-21: 13% of 17098 checklistsOct 22-31: 11% of 24570 checklistsNov 1-7: 7.1% of 16744 checklistsNov 8-14: 4.7% of 13483 checklistsNov 15-21: 2.2% of 12525 checklistsNov 22-30: 0.7% of 17023 checklistsDec 1-7: 0.5% of 11645 checklistsDec 8-14: 0.4% of 11567 checklistsDec 15-21: 0.3% of 13343 checklistsDec 22-31: 0.3% of 19759 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 Minnesota 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 Minnesota

Best counties

Share of checklists at the peak
  1. Hubbard CountyBest the second week of November · 66 checklists that week, 5,131 in all26%
  2. Polk CountyBest late October · 352 checklists that week, 14,997 in all26%
  3. Lac qui Parle CountyBest the second week of October · 33 checklists that week, 3,681 in all25%
  4. Renville CountyBest mid October · 46 checklists that week, 2,020 in all24%
  5. Fillmore CountyBest early April · 98 checklists that week, 3,791 in all22%
  6. Big Stone CountyBest mid October · 28 checklists that week, 2,678 in all21%

Best spots

Share of checklists at the peak
  1. Kabekona LakeHubbard County, best mid April · 23 checklists that week, 1,402 in all64%
  2. Stone LakeCarver County, best the second week of November · 32 checklists that week, 1,553 in all64%
  3. Oakdale Nature Preserve ParkWashington County, best late October · 47 checklists that week, 2,380 in all58%
  4. Rapids LakeCarver County, best the second week of April · 20 checklists that week, 591 in all55%
  5. Reservoir WoodsRamsey County, best the second week of October · 23 checklists that week, 1,369 in all51%
  6. Mississippi National River and Recreation AreaHennepin County, best late October · 30 checklists that week, 557 in all51%

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

Best time of day

In Minnesota, the Fox Sparrow is most often listed on checklists started between 7 and 9 am (3.3% of those checklists).

0%1%2%3%4%12 am: too few checklists (349) to judge1 am: too few checklists (331) to judge2 am: too few checklists (286) to judge3 am: too few checklists (364) to judge4 am: too few checklists (863) to judge5 am: too few checklists (7598) to judge6 am: 2.4% of 35775 checklists7 am: 3.4% of 90565 checklists8 am: 3.3% of 110612 checklists9 am: 2.9% of 106128 checklists10 am: 2.4% of 96131 checklists11 am: 2.2% of 83750 checklists12 pm: 2.2% of 76254 checklists1 pm: 2.1% of 73480 checklists2 pm: 2.0% of 73703 checklists3 pm: 2.3% of 75249 checklists4 pm: 2.6% of 68810 checklists5 pm: 2.8% of 51899 checklists6 pm: 1.9% of 38524 checklists7 pm: 1.1% of 25120 checklists8 pm: too few checklists (10568) to judge9 pm: too few checklists (2420) to judge10 pm: too few checklists (748) to judge11 pm: too few checklists (420) 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
January0.4%0.4%0.4%0.2%
February0.3%0.3%0.2%0.2%
March0.4%1.1%2.3%4.9%
April11%14%10%4.1%
May0.8%0.1%0.1%0.1%
June0%0%0%0%
July0%0%0%0%
August0%0%0%0%
September0%0.1%0.2%2.0%
October6.5%11%13%11%
November7.1%4.7%2.2%0.7%
December0.5%0.4%0.3%0.3%

Neighboring states

  • Iowa: arrives early October, 21 weeks earlier than Minnesota
  • Wisconsin: arrives early March, 1 week earlier than Minnesota
  • South Dakota: arrives late September, 22 weeks earlier than Minnesota
  • North Dakota: arrives mid March, 1 week later than Minnesota

Common questions

When do Fox Sparrows arrive in Minnesota?
Fox Sparrows arrive in Minnesota in the second week of March, peak in the second week of April (12% of checklists), and most are gone by early May.
When do Fox Sparrows leave Minnesota?
Most Fox Sparrows have left Minnesota by early May, when reports fall below half their usual rate.
When is the best time to see a Fox Sparrow in Minnesota?
The Fox Sparrow is reported most often in the second week of April, on about 12% of Minnesota checklists.
Where in Minnesota are Fox Sparrows seen most often?
By county, Hubbard County, Polk County, and Lac qui Parle County have the highest peak reporting rates for the Fox Sparrow (counties with at least 200 checklists).