Golden-winged Warblers arrive in Wisconsin in early May, peak in mid May (4.8% of checklists), and most are gone by early July.
When to look
First arrivalsMay 1-7early May
Common byMay 1-7early May
PeakMay 15-21mid May
Most gone byJul 1-7early July
Best: mid May. First arrivals early May; most are gone by early July. Peak: on about 4.8% of Wisconsin checklists.
Jannot usually seen
Febnot usually seen
Marnot usually seen
Apruncommon
Maypeak season
Juncommon
Juluncommon
Augcommon
Sepcommon
Octnot usually seen
Novnot usually seen
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.
Hay Creek FlowageBurnett County, best the second week of May · 44 checklists that week, 202 in all37%
Lakeshore PreserveDane County, best early September · 164 checklists that week, 3,146 in all37%
Rynearson Flowage 2Juneau County, best late May · 23 checklists that week, 176 in all36%
Baxter's HollowSauk County, best early September · 28 checklists that week, 1,009 in all35%
Whiskey Creek FlowageBurnett County, best early June · 33 checklists that week, 763 in all30%
Busy spots report more of everything; compare the checklist counts before you drive anywhere.
Best time of day
In Wisconsin, the Golden-winged Warbler is most often listed on checklists started between 5 and 7 am (3.2% 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%
0%
0%
0%
February
0%
0%
0%
0%
March
0%
0%
0%
0%
April
0%
0%
0%
0.2%
May
2.3%
6.0%
5.0%
3.2%
June
2.4%
2.3%
2.2%
1.8%
July
1.2%
0.8%
1.0%
0.8%
August
0.6%
0.8%
1.1%
2.1%
September
2.9%
2.3%
1.5%
0.3%
October
0.1%
0%
0%
0%
November
0%
0%
0.1%
0%
December
0%
0%
0%
0%
Neighboring states
Illinois: arrives late April, 1 week earlier than Wisconsin
Iowa: arrives late April, 1 week earlier than Wisconsin
Michigan: arrives early May, in the same week than Wisconsin
Minnesota: arrives early May, in the same week than Wisconsin
Common questions
When do Golden-winged Warblers arrive in Wisconsin?
Golden-winged Warblers arrive in Wisconsin in early May, peak in mid May (4.8% of checklists), and most are gone by early July.
When do Golden-winged Warblers leave Wisconsin?
Most Golden-winged Warblers have left Wisconsin by early July, when reports fall below half their usual rate. Stragglers are still reported until the second week of July.
When is the best time to see a Golden-winged Warbler in Wisconsin?
The Golden-winged Warbler is reported most often in mid May, on about 4.8% of Wisconsin checklists.
Where in Wisconsin are Golden-winged Warblers seen most often?
By county, Washburn County, Rusk County, and Sawyer County have the highest peak reporting rates for the Golden-winged Warbler (counties with at least 200 checklists).