When do wrens leave California?

Northern House Wrens never fully leave California: numbers fall back below half their usual rate by late June, but some are still reported in every week, about 3.0% of checklists at the low.

When is the best time to see wrens in California?

The Northern House Wren is reported most often in late April, on about 16% of California checklists.

Which wrens are in California?

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

2 wren species in California

When Do Wrens Arrive in California?

Northern House Wrens and Marsh Wrens are the wrens you are most likely to see in California. Northern House Wrens are in California all year, but most are here in spring: numbers build from late March, peak in late April (16% of checklists), and fall back by late June. In the quietest week (early February) they are still on about 3.0% of checklists.

When to look

Numbers buildMar 22-31late March

PeakApr 22-30late April

Fall back byJun 22-30late June

FewestFeb 1-7early February

Best: late April. Here all year; numbers build from late March and fall back by late June. Peak: on about 16% of California checklists.

Januncommon
Febuncommon
Marcommon
Aprpeak season
Maypeak season
Junpeak season
Julcommon
Augcommon
Seppeak season
Octpeak season
Novcommon
Decuncommon

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

Wrens in California, species by species

Species	First arrivals	Common by	Peak	Most gone by	Peak %
Northern House Wren	Mar 22-31	Mar 22-31	Apr 22-30	Jun 22-30	16%
Marsh Wren	all year	–	Nov 1-7	–	6.3%

Northern House 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 California 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 California

Best counties for Northern House Wren

Share of checklists at the peak

Yolo CountyBest the second week of September · 1427 checklists that week, 67,424 in all43%
Sutter CountyBest mid May · 93 checklists that week, 4,996 in all41%
Orange CountyBest mid April · 5439 checklists that week, 244,559 in all33%
Mono CountyBest mid May · 974 checklists that week, 38,666 in all32%
Inyo CountyBest the second week of May · 995 checklists that week, 35,713 in all31%
Ventura CountyBest mid September · 1829 checklists that week, 94,391 in all31%

All wrens in California

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

#	Species	Pattern	First arrivals	Peak	Peak %
1	Bewick's Wren	Year-round	all year	Sep 22-30	26%
2	Northern House Wren	All year, most in spring	Mar 22-31	Apr 22-30	16%
3	Marsh Wren	Year-round	all year	Nov 1-7	6.3%
4	Pacific Wren	Year-round	all year	Jun 8-14	2.4%
5	Rock Wren	Year-round	all year	Nov 8-14	1.7%
6	Cactus Wren	Winter visitor	Oct 1-7	Mar 22-31	1.3%
7	Canyon Wren	Summer visitor	Oct 8-14	Apr 8-14	1.0%

Common questions

When do wrens arrive in California?: Northern House Wrens are in California all year, but most are here in spring: numbers build from late March, peak in late April (16% of checklists), and fall back by late June. In the quietest week (early February) they are still on about 3.0% of checklists.
When do wrens leave California?: Northern House Wrens never fully leave California: numbers fall back below half their usual rate by late June, but some are still reported in every week, about 3.0% of checklists at the low.
When is the best time to see wrens in California?: The Northern House Wren is reported most often in late April, on about 16% of California checklists.
Which wrens are in California?: Northern House Wren and Marsh Wren are reported regularly; the Northern House Wren is the most common.