Lincoln's Sparrows mostly pass through Wisconsin: they arrive in early September, peak in early October (7.1% of checklists), and most are gone by late October.
When to look
First arrivalsSep 1-7early September
Common bySep 1-7early September
PeakOct 1-7early October
Most gone byOct 22-31late October
Best: early October. First arrivals early September; most are gone by late October. Peak: on about 7.1% of Wisconsin checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Apruncommon
Maycommon
Junrare
Julrare
Augrare
Seppeak season
Octpeak season
Novrare
Decnot usually seen
Darker months: more checklists report it. Outlined: peak month.
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 Wisconsin 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
0%few checklistsno data
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.
Duck CreekBrown County, best the second week of October · 67 checklists that week, 4,031 in all54%
Evansville Wildlife AreaRock County, best the second week of October · 20 checklists that week, 184 in all49%
Big Creek State Habitat AreaDoor County, best the second week of October · 26 checklists that week, 625 in all47%
Lake Park (3)Milwaukee County, best the second week of May · 21 checklists that week, 201 in all44%
Pigeon River ParkSheboygan County, best late September · 21 checklists that week, 562 in all44%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Wisconsin, the Lincoln's Sparrow is most often listed on checklists started between 5 and 7 am (2.3% of those checklists).
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
Month
Days 1-7
8-14
15-21
22-end
January
0.1%
0%
0.1%
0.1%
February
0%
0%
0%
0%
March
0.1%
0.1%
0.1%
0%
April
0.1%
0.1%
0.1%
1.0%
May
3.8%
5.2%
3.4%
0.9%
June
0.2%
0.2%
0.3%
0.4%
July
0.5%
0.5%
0.3%
0.2%
August
0.2%
0.2%
0.1%
0.2%
September
1.0%
2.8%
4.7%
7.0%
October
7.9%
6.4%
3.9%
1.2%
November
0.1%
0.1%
0.1%
0.1%
December
0.1%
0.1%
0.1%
0.1%
Neighboring states
Illinois: arrives late August, 1 week earlier than Wisconsin
Iowa: arrives early September, in the same week than Wisconsin
Michigan: arrives late August, 1 week earlier than Wisconsin
Minnesota: arrives late August, 1 week earlier than Wisconsin
Common questions
When do Lincoln's Sparrows arrive in Wisconsin?
Lincoln's Sparrows mostly pass through Wisconsin: they arrive in early September, peak in early October (7.1% of checklists), and most are gone by late October.
When do Lincoln's Sparrows leave Wisconsin?
Most Lincoln's Sparrows have left Wisconsin by late October, when reports fall below half their usual rate.
When is the best time to see a Lincoln's Sparrow in Wisconsin?
The Lincoln's Sparrow is reported most often in early October, on about 7.1% of Wisconsin checklists.
Where in Wisconsin are Lincoln's Sparrows seen most often?
By county, Taylor County, Dunn County, and Bayfield County have the highest peak reporting rates for the Lincoln's Sparrow (counties with at least 200 checklists).