When do wrens leave Maine?

Most Winter Wrens have left Maine by early August, when reports fall below half their usual rate. Stragglers are still reported until late October.

When is the best time to see wrens in Maine?

The Winter Wren is reported most often in late June, on about 12% of Maine checklists.

Which wrens are in Maine?

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

4 wren species in Maine

When Do Wrens Arrive in Maine?

Photo: Derek Spencer, CC BY 4.0 via iNaturalist

Winter Wrens, Northern House Wrens, and Carolina Wrens are the wrens you are most likely to see in Maine. Winter Wrens reach Maine in early April, are common by mid April, peak in late June (12% of checklists), and most are gone by early August.

When to look

First arrivalsApr 1-7early April

Common byApr 15-21mid April

PeakJun 22-30late June

Most gone byAug 1-7early August

Best: late June. First arrivals early April; most are gone by early August. Peak: on about 12% of Maine checklists.

Jannot usually seen
Febnot usually seen
Marrare
Aprcommon
Maycommon
Junpeak season
Julpeak season
Auguncommon
Seprare
Octrare
Novrare
Decrare

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

Wrens in Maine, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Winter Wren	Apr 1-7	Apr 15-21	Jun 22-30	Aug 1-7	12%
Northern House Wren	Apr 22-30	Apr 22-30	May 15-21	Sep 15-21	8.7%
Carolina Wren	Jul 8-14	Aug 1-7	Sep 22-30	May 22-31	5.9%
Marsh Wren	May 1-7	May 1-7	Jul 15-21	Oct 1-7	1.8%

Winter Wren
Northern House Wren
Carolina Wren
Marsh 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 Maine 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 Maine

Best counties for Winter Wren

Share of checklists at the peak

Piscataquis CountyBest early July · 982 checklists that week, 14,837 in all33%
Aroostook CountyBest early July · 690 checklists that week, 16,817 in all29%
Franklin CountyBest mid June · 732 checklists that week, 14,182 in all25%
Somerset CountyBest early July · 541 checklists that week, 12,202 in all24%
Washington CountyBest the second week of May · 1095 checklists that week, 35,967 in all23%
Hancock CountyBest early July · 3525 checklists that week, 118,358 in all17%

All wrens in Maine

4 species are reported regularly: 4 are summer visitors.

#	Species	Pattern	First arrivals	Peak	Peak %
1	Winter Wren	Summer visitor	Apr 1-7	Jun 22-30	12%
2	Northern House Wren	Summer visitor	Apr 22-30	May 15-21	8.7%
3	Carolina Wren	Summer visitor	Jul 8-14	Sep 22-30	5.9%
4	Marsh Wren	Summer visitor	May 1-7	Jul 15-21	1.8%

Common questions

When do wrens arrive in Maine?: Winter Wrens reach Maine in early April, are common by mid April, peak in late June (12% of checklists), and most are gone by early August.
When do wrens leave Maine?: Most Winter Wrens have left Maine by early August, when reports fall below half their usual rate. Stragglers are still reported until late October.
When is the best time to see wrens in Maine?: The Winter Wren is reported most often in late June, on about 12% of Maine checklists.
Which wrens are in Maine?: Winter Wren, Northern House Wren, Carolina Wren, and Marsh Wren are reported regularly; the Winter Wren is the most common.