When do wrens leave Wisconsin?

Most Northern House Wrens have left Wisconsin by early September, when reports fall below half their usual rate. Stragglers are still reported until the second week of October.

When is the best time to see wrens in Wisconsin?

The Northern House Wren is reported most often in mid May, on about 39% of Wisconsin checklists.

Which wrens are in Wisconsin?

Northern House Wren, Marsh Wren, and Winter Wren are reported regularly; the Northern House Wren is the most common.

3 wren species in Wisconsin

When Do Wrens Arrive in Wisconsin?

Northern House Wrens, Marsh Wrens, and Winter Wrens are the wrens you are most likely to see in Wisconsin. Northern House Wrens reach Wisconsin in mid April, are common by late April, peak in mid May (39% of checklists), and most are gone by early September.

When to look

First arrivalsApr 15-21mid April

Common byApr 22-30late April

PeakMay 15-21mid May

Most gone bySep 1-7early September

Best: mid May. First arrivals mid April; most are gone by early September. Peak: on about 39% of Wisconsin checklists.

Jannot usually seen
Febnot usually seen
Marnot usually seen
Aprcommon
Maypeak season
Junpeak season
Julpeak season
Augcommon
Sepcommon
Octuncommon
Novnot usually seen
Decnot usually seen

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

Wrens in Wisconsin, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Northern House Wren	Apr 15-21	Apr 22-30	May 15-21	Sep 1-7	39%
Marsh Wren	Apr 22-30	May 1-7	Jul 8-14	Sep 22-30	7.2%
Winter Wren	Sep 15-21	Sep 15-21	Oct 8-14	Dec 22-31	5.1%

Northern House Wren
Marsh Wren
Winter Wren

Share of complete checklists reporting each species, by week (4 per month). Gaps: fewer than 10 checklists that week.

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.

Where in Wisconsin

Best counties for Northern House Wren

Share of checklists at the peak

Green Lake CountyBest early July · 281 checklists that week, 15,345 in all70%
Crawford CountyBest mid July · 58 checklists that week, 4,271 in all67%
La Crosse CountyBest early July · 285 checklists that week, 15,788 in all65%
Vernon CountyBest early July · 229 checklists that week, 13,255 in all65%
Green CountyBest early July · 86 checklists that week, 4,387 in all64%
Lafayette CountyBest the second week of July · 71 checklists that week, 1,911 in all62%

All wrens in Wisconsin

4 species are reported regularly: 3 are summer visitors and 1 are winter visitors.

#	Species	Pattern	First arrivals	Peak	Peak %
1	Northern House Wren	Summer visitor	Apr 15-21	May 15-21	39%
2	Marsh Wren	Summer visitor	Apr 22-30	Jul 8-14	7.2%
3	Sedge Wren	Summer visitor	May 1-7	Jul 15-21	6.7%
4	Winter Wren	Winter visitor	Sep 15-21	Oct 8-14	5.1%

Common questions

When do wrens arrive in Wisconsin?: Northern House Wrens reach Wisconsin in mid April, are common by late April, peak in mid May (39% of checklists), and most are gone by early September.
When do wrens leave Wisconsin?: Most Northern House Wrens have left Wisconsin by early September, when reports fall below half their usual rate. Stragglers are still reported until the second week of October.
When is the best time to see wrens in Wisconsin?: The Northern House Wren is reported most often in mid May, on about 39% of Wisconsin checklists.
Which wrens are in Wisconsin?: Northern House Wren, Marsh Wren, and Winter Wren are reported regularly; the Northern House Wren is the most common.