WhenToBird

Pooecetes gramineus · Passerellidae

When Do Vesper Sparrows Arrive in Minnesota?

Adult Vesper Sparrow
Photo: Dani Alba, CC BY 4.0 via iNaturalist

Vesper Sparrows arrive in Minnesota in the second week of April, peak in early July (2.8% of checklists), and most are gone by the second week of August.

When to look

First arrivalsApr 8-14the second week of April
Common byApr 8-14the second week of April
PeakJul 1-7early July
Most gone byAug 8-14the second week of August

Best: early July. First arrivals the second week of April; most are gone by the second week of August. Peak: on about 2.8% of Minnesota checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marrare
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novnot usually seen
  12. Decnot usually seen

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

0%1%2%3%Jan 1-7: 0.1% of 20628 checklistsJan 8-14: 0% of 14594 checklistsJan 15-21: 0% of 14238 checklistsJan 22-31: 0% of 20725 checklistsFeb 1-7: 0% of 14484 checklistsFeb 8-14: 0% of 15988 checklistsFeb 15-21: 0% of 20718 checklistsFeb 22-28: 0% of 15754 checklistsMar 1-7: 0% of 16125 checklistsMar 8-14: 0% of 19035 checklistsMar 15-21: 0.1% of 19586 checklistsMar 22-31: 0.1% of 30192 checklistsApr 1-7: 0.3% of 24262 checklistsApr 8-14: 1.4% of 30223 checklistsApr 15-21: 1.9% of 29085 checklistsApr 22-30: 2.6% of 43574 checklistsMay 1-7: 2.2% of 39300 checklistsMay 8-14: 1.7% of 45927 checklistsMay 15-21: 1.6% of 36632 checklistsMay 22-31: 2.1% of 43809 checklistsJun 1-7: 2.4% of 23418 checklistsJun 8-14: 2.3% of 20450 checklistsJun 15-21: 2.6% of 19470 checklistsJun 22-30: 2.7% of 23418 checklistsJul 1-7: 2.9% of 19104 checklistsJul 8-14: 2.7% of 16927 checklistsJul 15-21: 2.2% of 15635 checklistsJul 22-31: 2.1% of 22073 checklistsAug 1-7: 1.5% of 16255 checklistsAug 8-14: 1.1% of 16840 checklistsAug 15-21: 0.8% of 17475 checklistsAug 22-31: 0.6% of 26545 checklistsSep 1-7: 0.8% of 20750 checklistsSep 8-14: 0.7% of 18494 checklistsSep 15-21: 0.9% of 18215 checklistsSep 22-30: 1.3% of 24463 checklistsOct 1-7: 1.5% of 18252 checklistsOct 8-14: 1.1% of 19527 checklistsOct 15-21: 0.5% of 17098 checklistsOct 22-31: 0.1% of 24570 checklistsNov 1-7: 0.1% of 16744 checklistsNov 8-14: 0% of 13483 checklistsNov 15-21: 0.1% of 12525 checklistsNov 22-30: 0.1% of 17023 checklistsDec 1-7: 0% of 11645 checklistsDec 8-14: 0.1% of 11567 checklistsDec 15-21: 0.1% of 13343 checklistsDec 22-31: 0.1% 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. Lyon CountyBest mid June · 69 checklists that week, 4,283 in all31%
  2. Wilkin CountyBest late September · 11 checklists that week, 1,101 in all28%
  3. Red Lake CountyBest early July · 47 checklists that week, 1,028 in all22%
  4. Yellow Medicine CountyBest the second week of June · 31 checklists that week, 1,931 in all21%
  5. Norman CountyBest late April · 84 checklists that week, 1,003 in all17%
  6. Grant CountyBest early June · 37 checklists that week, 2,168 in all17%

Best spots

Share of checklists at the peak
  1. Grey Cloud Dunes State Scientific and Natural AreaWashington County, best the second week of June · 59 checklists that week, 2,212 in all45%
  2. Prairie LakeHennepin County, best the second week of July · 61 checklists that week, 1,833 in all39%
  3. Lost Valley Prairie State Scientific and Natural AreaWashington County, best early June · 42 checklists that week, 186 in all33%
  4. Gabriel Anderson State Wildlife Management AreaLyon County, best late April · 28 checklists that week, 278 in all31%

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

Best time of day

In Minnesota, the Vesper Sparrow is most often listed on checklists started between 6 and 8 am (1.5% of those checklists).

0%0.5%1%1.5%2%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: 1.8% of 35775 checklists7 am: 1.4% of 90565 checklists8 am: 1.3% of 110612 checklists9 am: 1.2% of 106128 checklists10 am: 1.1% of 96131 checklists11 am: 1.1% of 83750 checklists12 pm: 0.9% of 76254 checklists1 pm: 0.9% of 73480 checklists2 pm: 0.8% of 73703 checklists3 pm: 0.7% of 75249 checklists4 pm: 1.0% of 68810 checklists5 pm: 1.1% of 51899 checklists6 pm: 1.1% of 38524 checklists7 pm: 1.3% 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
January0.1%0%0%0%
February0%0%0%0%
March0%0%0.1%0.1%
April0.3%1.4%1.9%2.6%
May2.2%1.7%1.6%2.1%
June2.4%2.3%2.6%2.7%
July2.9%2.7%2.2%2.1%
August1.5%1.1%0.8%0.6%
September0.8%0.7%0.9%1.3%
October1.5%1.1%0.5%0.1%
November0.1%0%0.1%0.1%
December0%0.1%0.1%0.1%

Neighboring states

  • Iowa: arrives late March, 2 weeks earlier than Minnesota
  • Wisconsin: arrives the second week of April, in the same week than Minnesota
  • South Dakota: arrives the second week of April, in the same week than Minnesota
  • North Dakota: arrives the second week of April, in the same week than Minnesota

Common questions

When do Vesper Sparrows arrive in Minnesota?
Vesper Sparrows arrive in Minnesota in the second week of April, peak in early July (2.8% of checklists), and most are gone by the second week of August.
When do Vesper Sparrows leave Minnesota?
Most Vesper Sparrows have left Minnesota by the second week of August, when reports fall below half their usual rate.
When is the best time to see a Vesper Sparrow in Minnesota?
The Vesper Sparrow is reported most often in early July, on about 2.8% of Minnesota checklists.
Where in Minnesota are Vesper Sparrows seen most often?
By county, Lyon County, Wilkin County, and Red Lake County have the highest peak reporting rates for the Vesper Sparrow (counties with at least 200 checklists).