Marsh Wren

Marsh Wren

Cistothorus palustris

Least ConcernNear ThreatenedVulnerableEndangeredCritically Endangered
Daily sighting probability ~10% · With luck
at Saguaro National Park
3,707 Verified sightings at Saguaro National Park From 2019 to 2026
10,085 Verified sightings across all 33 parks From 2019 to 2026
November Best month highest sighting rate
☀️ Diurnal When it's spotted during daytime hours (6am–6pm)

About the Marsh Wren

The marsh wren (Cistothorus palustris) is a small North American songbird of the wren family. It was formerly called the long-billed marsh wren to distinguish it from the sedge wren, then known as the short-billed marsh wren.

The marsh wren was described by the Scottish-American ornithologist Alexander Wilson in 1810 and given the binomial name Certhia palustris. The current genus Cistothorus was introduced by the German ornithologist Jean Cabanis in 1850. There are 15 recognised subspecies.

Etymology: from Greek 'κιστος' (cistos, "a shrub") and 'θουρος' (thouros, "leaping, or running through") and Latin 'palustris' ("marshy"). Adults have brown upperparts with a light brown belly and flanks and a white throat and breast. The back is black with white stripes. They have a dark cap with a white line over the eyes and a short thin bill.

The male's song is a loud gurgle used to declare ownership of territory; western males have a more varied repertoire. This little bird is native to Canada, Mexico, and the United States. Their breeding habitat is marshes with tall vegetation such as cattails across North America. In the western United States, some birds... Wikipedia →

Global Distribution

Where this species is recorded worldwide. Restricted to human observations from 2019 onwards — the same kind of record and the same period the probabilities on this page are built from, so collar-tracking studies, camera-trap arrays and museum specimens are excluded. Around Santa Rosa that removes 5,924 GPS fixes from a handful of tagged jaguars.

where this species is recorded (GBIF density — it tracks where observers go, not how likely a sighting is)  ·  parks where it occurs — tap a pin for the sighting probability there

Parks Where Found

# Park Country Daily sighting probability
1 Wood Buffalo National Park 🇨🇦 Canada
~30%
2 Channel Islands National Park 🇺🇸 United States
~20%
3 Death Valley National Park 🇺🇸 United States
~20%
4 El Vizcaíno Biosphere Reserve 🇲🇽 Mexico
~10%
5 Riding Mountain National Park 🇨🇦 Canada
~10%
6 Bahía de Loreto National Park 🇲🇽 Mexico
~10%
7 Redwood National Park 🇺🇸 United States
~10%
8 Point Pelee National Park 🇨🇦 Canada
~10%
9 Big Bend National Park 🇺🇸 United States
~10%
10 Saguaro National Park 🇺🇸 United States
~10%
11 Jasper National Park 🇨🇦 Canada
~10%
12 Elk Island National Park 🇨🇦 Canada
~10%
13 Voyageurs National Park 🇺🇸 United States
<5%
14 Olympic National Park 🇺🇸 United States
<5%
15 Sequoia and Kings Canyon National Parks 🇺🇸 United States
<5%
16 Banff National Park 🇨🇦 Canada
<5%
17 Grand Teton National Park 🇺🇸 United States
<5%
18 Joshua Tree National Park 🇺🇸 United States
<5%
19 Yellowstone National Park 🇺🇸 United States
<5%
20 Big Cypress National Preserve 🇺🇸 United States
<5%
21 Everglades National Park 🇺🇸 United States
<5%
22 Glacier National Park 🇺🇸 United States
<5%
23 Great Smoky Mountains National Park 🇺🇸 United States
<5%
24 Grand Canyon National Park 🇺🇸 United States
<5%
25 Pacific Rim National Park Reserve 🇨🇦 Canada
<5%
26 Zion National Park 🇺🇸 United States
<5%
27 Acadia National Park 🇺🇸 United States
<5%
28 Rocky Mountain National Park 🇺🇸 United States
<5%
29 Shenandoah National Park 🇺🇸 United States
<5%
30 Great Bear Rainforest 🇨🇦 Canada
<5%
31 Guadalupe Mountains National Park 🇺🇸 United States
Insufficient data
32 Congaree National Park 🇺🇸 United States
Insufficient data
33 Yosemite National Park 🇺🇸 United States
Insufficient data

Quick answers

What are the chances of seeing a Marsh Wren in Saguaro National Park?

About 10% of wildlife watchers report a Marsh Wren sighting in Saguaro National Park, based on 3,707 verified sightings from GBIF citizen-science data.

When is the best time to see Marsh Wren in Saguaro National Park?

November has the highest sighting rate for Marsh Wren in Saguaro National Park in our monthly data.

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