WhenToBird

Cistothorus palustris · Troglodytidae

When Do Marsh Wrens Arrive in Mississippi?

Adult Marsh Wren
Photo: Kathy Richardson, CC BY 4.0 via iNaturalist

Marsh Wrens are winter birds in Mississippi: they arrive in late September, peak in mid October (4.8% of checklists), and most are gone by early May.

When to look

First arrivalsSep 22-30late September
Common bySep 22-30late September
PeakOct 15-21mid October
Most gone byMay 1-7early May

Best: mid October. First arrivals late September; most are gone by early May. Peak: on about 4.8% of Mississippi checklists.

  1. Jancommon
  2. Febcommon
  3. Marcommon
  4. Aprcommon
  5. Mayuncommon
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepuncommon
  10. Octpeak season
  11. Novpeak season
  12. Deccommon

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

0%2%4%6%Jan 1-7: 2.3% of 4836 checklistsJan 8-14: 2.7% of 3323 checklistsJan 15-21: 2.1% of 3400 checklistsJan 22-31: 2.5% of 4705 checklistsFeb 1-7: 1.8% of 3387 checklistsFeb 8-14: 1.9% of 3911 checklistsFeb 15-21: 1.3% of 4691 checklistsFeb 22-28: 2.6% of 3409 checklistsMar 1-7: 1.7% of 3276 checklistsMar 8-14: 1.2% of 3273 checklistsMar 15-21: 1.8% of 3552 checklistsMar 22-31: 2.1% of 5618 checklistsApr 1-7: 2.8% of 4432 checklistsApr 8-14: 3.3% of 4907 checklistsApr 15-21: 2.6% of 5239 checklistsApr 22-30: 2.2% of 7043 checklistsMay 1-7: 1.0% of 4597 checklistsMay 8-14: 0.3% of 4383 checklistsMay 15-21: 0.1% of 3088 checklistsMay 22-31: 0.1% of 3805 checklistsJun 1-7: 0.1% of 2658 checklistsJun 8-14: 0.1% of 2469 checklistsJun 15-21: 0% of 2112 checklistsJun 22-30: 0.1% of 2534 checklistsJul 1-7: 0.1% of 2099 checklistsJul 8-14: 0.1% of 1885 checklistsJul 15-21: 0% of 1811 checklistsJul 22-31: 0% of 2793 checklistsAug 1-7: 0.1% of 2045 checklistsAug 8-14: 0.1% of 2210 checklistsAug 15-21: 0.1% of 2437 checklistsAug 22-31: 0.1% of 3415 checklistsSep 1-7: 0.1% of 2837 checklistsSep 8-14: 0.2% of 2585 checklistsSep 15-21: 0.3% of 2870 checklistsSep 22-30: 1.0% of 3610 checklistsOct 1-7: 2.4% of 2938 checklistsOct 8-14: 4.0% of 3457 checklistsOct 15-21: 5.1% of 3168 checklistsOct 22-31: 5.2% of 3752 checklistsNov 1-7: 3.7% of 2847 checklistsNov 8-14: 3.3% of 2648 checklistsNov 15-21: 2.8% of 2599 checklistsNov 22-30: 2.7% of 3389 checklistsDec 1-7: 2.5% of 2419 checklistsDec 8-14: 2.9% of 2526 checklistsDec 15-21: 3.1% of 2966 checklistsDec 22-31: 1.5% of 4466 checklistsJanFebMarAprMayJunJulAugSepOctNovDec
Share of complete checklists reporting it, by week (4 per month). Grey bars: fewer than 10 checklists, not counted.

Frequency is the share of complete checklists in Mississippi 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.

JanFebMarAprMayJunJulAugSepOctNovDec
today
Second week of November

Each county is shaded by the share of complete checklists there that listed the bird, blended with the weeks either side. Darker is more often. It follows where people watch birds, not how many birds there are. How to read it.

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Where in Mississippi

Best counties

Share of checklists at the peak
  1. Holmes CountyBest early March · 10 checklists that week, 242 in all23%
  2. Madison CountyBest late October · 164 checklists that week, 6,285 in all14%
  3. Noxubee CountyBest the second week of November · 109 checklists that week, 5,841 in all9.8%
  4. Rankin CountyBest early November · 24 checklists that week, 1,877 in all8.9%
  5. Jackson CountyBest late October · 971 checklists that week, 36,440 in all8.6%
  6. Hancock CountyBest mid October · 165 checklists that week, 7,194 in all8.3%

Best spots

Share of checklists at the peak
  1. Hurricane LakeMadison County, best early November · 32 checklists that week, 1,600 in all46%
  2. Halstead BayouJackson County, best early April · 27 checklists that week, 633 in all44%
  3. Stark BayouJackson County, best late February · 24 checklists that week, 524 in all39%
  4. Bellefontaine Point Coastal Reserve (northwest)Jackson County, best early January · 30 checklists that week, 404 in all31%

Busy spots report more of everything; compare the checklist counts before you drive anywhere.

Best time of day

In Mississippi, the Marsh Wren is most often listed on checklists started between 6 and 8 am (3.3% of those checklists).

0%1%2%3%4%12 am: too few checklists (54) to judge1 am: too few checklists (48) to judge2 am: too few checklists (28) to judge3 am: too few checklists (60) to judge4 am: too few checklists (114) to judge5 am: too few checklists (1139) to judge6 am: 3.4% of 9054 checklists7 am: 3.3% of 18481 checklists8 am: 2.8% of 17525 checklists9 am: 2.2% of 15482 checklists10 am: 1.5% of 14380 checklists11 am: 1.1% of 12728 checklists12 pm: 1.1% of 11009 checklists1 pm: 1.0% of 10651 checklists2 pm: 1.1% of 10787 checklists3 pm: 1.3% of 11221 checklists4 pm: 1.2% of 11861 checklists5 pm: 0.9% of 8854 checklists6 pm: 0.5% of 6018 checklists7 pm: too few checklists (2387) to judge8 pm: too few checklists (314) to judge9 pm: too few checklists (114) to judge10 pm: too few checklists (63) to judge11 pm: too few checklists (48) to judge12a3a6a9a12p3p6p9p
Share of checklists started in each local hour that reported it. It reflects when people go birding as well as when birds are active. Grey hours have too few checklists (under 2% of the state’s, or under 200) to judge.
Week-by-week table
MonthDays 1-78-1415-2122-end
January2.3%2.7%2.1%2.5%
February1.8%1.9%1.3%2.6%
March1.7%1.2%1.8%2.1%
April2.8%3.3%2.6%2.2%
May1.0%0.3%0.1%0.1%
June0.1%0.1%0%0.1%
July0.1%0.1%0%0%
August0.1%0.1%0.1%0.1%
September0.1%0.2%0.3%1.0%
October2.4%4.0%5.1%5.2%
November3.7%3.3%2.8%2.7%
December2.5%2.9%3.1%1.5%

Neighboring states

  • Alabama: arrives late September, in the same week than Mississippi
  • Louisiana: arrives late September, in the same week than Mississippi
  • Arkansas: arrives mid September, 1 week earlier than Mississippi
  • Georgia: arrives mid September, 1 week earlier than Mississippi

Common questions

When do Marsh Wrens arrive in Mississippi?
Marsh Wrens are winter birds in Mississippi: they arrive in late September, peak in mid October (4.8% of checklists), and most are gone by early May.
When do Marsh Wrens leave Mississippi?
Most Marsh Wrens have left Mississippi by early May, when reports fall below half their usual rate.
When is the best time to see a Marsh Wren in Mississippi?
The Marsh Wren is reported most often in mid October, on about 4.8% of Mississippi checklists.
Where in Mississippi are Marsh Wrens seen most often?
By county, Holmes County, Madison County, and Noxubee County have the highest peak reporting rates for the Marsh Wren (counties with at least 200 checklists).