When do wrens leave Maryland?

The Carolina Wren does not leave Maryland: it is reported all year, from 46% of checklists in the second week of February to 65% in mid September.

When is the best time to see wrens in Maryland?

The Carolina Wren is reported most often in mid September, on about 65% of Maryland checklists.

Which wrens are in Maryland?

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

4 wren species in Maryland

When Do Wrens Arrive in Maryland?

Photo: northerly, CC BY 4.0 via iNaturalist

Carolina Wrens, Northern House Wrens, and Winter Wrens are the wrens you are most likely to see in Maryland. The Carolina Wren is in Maryland all year. It turns up on about 65% of checklists at its peak (mid September) and on 46% in its quietest week (the second week of February).

When to look

PresentAll year

Peak weekSep 15-21mid September

Quietest weekFeb 8-14the second week of February

Best: mid September. Here all year. Peak: on about 65% of Maryland checklists.

Janpeak season
Febcommon
Marpeak season
Aprpeak season
Maypeak season
Junpeak season
Julpeak season
Augpeak season
Seppeak season
Octpeak season
Novpeak season
Decpeak season

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

Wrens in Maryland, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Carolina Wren	all year	–	Sep 15-21	–	65%
Northern House Wren	Apr 8-14	Apr 15-21	May 8-14	Oct 8-14	27%
Winter Wren	Oct 1-7	Oct 8-14	Nov 15-21	Apr 1-7	8.8%
Marsh Wren	Apr 8-14	Apr 8-14	Apr 22-30	Aug 8-14	1.3%

Carolina Wren
Northern House Wren
Winter 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 Maryland 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 Maryland

Best counties for Carolina Wren

Share of checklists at the peak

Charles CountyBest early October · 141 checklists that week, 10,064 in all79%
Cecil CountyBest mid September · 308 checklists that week, 18,620 in all77%
Prince George's CountyBest mid September · 1973 checklists that week, 87,907 in all76%
Queen Anne's CountyBest mid October · 395 checklists that week, 26,875 in all76%
Calvert CountyBest mid April · 1142 checklists that week, 43,807 in all72%
Howard CountyBest late September · 2251 checklists that week, 118,290 in all72%

All wrens in Maryland

4 species are reported regularly: 1 stay all year, 2 are summer visitors, and 1 are winter visitors.

#	Species	Pattern	First arrivals	Peak	Peak %
1	Carolina Wren	Year-round	all year	Sep 15-21	65%
2	Northern House Wren	Summer visitor	Apr 8-14	May 8-14	27%
3	Winter Wren	Winter visitor	Oct 1-7	Nov 15-21	8.8%
4	Marsh Wren	Summer visitor	Apr 8-14	Apr 22-30	1.3%

Common questions

When do wrens arrive in Maryland?: The Carolina Wren is in Maryland all year. It turns up on about 65% of checklists at its peak (mid September) and on 46% in its quietest week (the second week of February).
When do wrens leave Maryland?: The Carolina Wren does not leave Maryland: it is reported all year, from 46% of checklists in the second week of February to 65% in mid September.
When is the best time to see wrens in Maryland?: The Carolina Wren is reported most often in mid September, on about 65% of Maryland checklists.
Which wrens are in Maryland?: Carolina Wren, Northern House Wren, Winter Wren, and Marsh Wren are reported regularly; the Carolina Wren is the most common.