WhenToBird

Thryothorus ludovicianus · Troglodytidae

When Do Carolina Wrens Arrive in Vermont?

Adult Carolina Wren
Photo: northerly, CC BY 4.0 via iNaturalist

The Carolina Wren is in Vermont all year. It turns up on about 9.3% of checklists at its peak (the second week of August) and on 4.2% in its quietest week (the second week of June).

When to look

PresentAll year
Peak weekAug 8-14the second week of August
Quietest weekJun 8-14the second week of June

Best: the second week of August. Here all year. Peak: on about 9.3% of Vermont checklists.

  1. Jancommon
  2. Febpeak season
  3. Marcommon
  4. Aprcommon
  5. Maycommon
  6. Juncommon
  7. Julpeak season
  8. Augpeak season
  9. Seppeak season
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

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

0%5%10%Jan 1-7: 6.2% of 12234 checklistsJan 8-14: 6.3% of 8293 checklistsJan 15-21: 5.9% of 7885 checklistsJan 22-31: 6.4% of 10534 checklistsFeb 1-7: 6.9% of 7212 checklistsFeb 8-14: 7.6% of 8144 checklistsFeb 15-21: 6.9% of 10480 checklistsFeb 22-28: 7.0% of 7932 checklistsMar 1-7: 6.6% of 8192 checklistsMar 8-14: 6.4% of 9383 checklistsMar 15-21: 5.9% of 10620 checklistsMar 22-31: 5.5% of 16257 checklistsApr 1-7: 6.0% of 12568 checklistsApr 8-14: 5.9% of 14677 checklistsApr 15-21: 6.1% of 14106 checklistsApr 22-30: 6.9% of 19617 checklistsMay 1-7: 7.4% of 18143 checklistsMay 8-14: 6.1% of 19626 checklistsMay 15-21: 5.0% of 17779 checklistsMay 22-31: 4.2% of 20310 checklistsJun 1-7: 4.4% of 11493 checklistsJun 8-14: 4.2% of 10215 checklistsJun 15-21: 3.9% of 9951 checklistsJun 22-30: 4.5% of 11050 checklistsJul 1-7: 5.3% of 8690 checklistsJul 8-14: 5.1% of 7679 checklistsJul 15-21: 6.3% of 7687 checklistsJul 22-31: 7.8% of 10712 checklistsAug 1-7: 9.3% of 7703 checklistsAug 8-14: 10% of 7743 checklistsAug 15-21: 8.6% of 8314 checklistsAug 22-31: 8.7% of 12428 checklistsSep 1-7: 8.1% of 9526 checklistsSep 8-14: 8.7% of 8493 checklistsSep 15-21: 8.8% of 8283 checklistsSep 22-30: 8.8% of 10352 checklistsOct 1-7: 9.7% of 8802 checklistsOct 8-14: 8.1% of 9088 checklistsOct 15-21: 9.1% of 7739 checklistsOct 22-31: 8.5% of 10907 checklistsNov 1-7: 8.2% of 7868 checklistsNov 8-14: 7.2% of 7223 checklistsNov 15-21: 7.0% of 7224 checklistsNov 22-30: 7.6% of 8375 checklistsDec 1-7: 7.4% of 6580 checklistsDec 8-14: 8.2% of 6800 checklistsDec 15-21: 7.3% of 8334 checklistsDec 22-31: 7.2% of 10579 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 Vermont 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 Vermont

Best counties

Share of checklists at the peak
  1. Windham CountyBest late September · 728 checklists that week, 39,105 in all17%
  2. Bennington CountyBest early September · 459 checklists that week, 21,621 in all17%
  3. Rutland CountyBest mid August · 736 checklists that week, 46,909 in all16%
  4. Chittenden CountyBest the second week of August · 1523 checklists that week, 109,477 in all15%
  5. Washington CountyBest early August · 609 checklists that week, 37,036 in all11%
  6. Windsor CountyBest late October · 1756 checklists that week, 73,702 in all10%

Best spots

Share of checklists at the peak
  1. Otter View ParkAddison County, best the second week of November · 20 checklists that week, 853 in all62%
  2. Cold SpringsWindham County, best late March · 24 checklists that week, 682 in all58%
  3. BrattleboroWindham County, best late September · 21 checklists that week, 517 in all53%
  4. Helen W. Buckner Memorial Preserve at Bald MountainRutland County, best late June · 20 checklists that week, 714 in all52%
  5. Derway IslandChittenden County, best late April · 22 checklists that week, 278 in all43%

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

Best time of day

In Vermont, the Carolina Wren is most often listed on checklists started between 5 and 7 am (11% of those checklists).

0%5%10%15%12 am: too few checklists (384) to judge1 am: too few checklists (418) to judge2 am: too few checklists (568) to judge3 am: too few checklists (1183) to judge4 am: too few checklists (3460) to judge5 am: 11% of 10340 checklists6 am: 11% of 30951 checklists7 am: 9.7% of 64150 checklists8 am: 8.7% of 70252 checklists9 am: 7.4% of 55280 checklists10 am: 6.3% of 47111 checklists11 am: 5.3% of 37615 checklists12 pm: 5.0% of 32195 checklists1 pm: 4.4% of 30185 checklists2 pm: 4.1% of 29679 checklists3 pm: 4.1% of 26483 checklists4 pm: 4.3% of 20110 checklists5 pm: 4.8% of 15993 checklists6 pm: 4.8% of 12110 checklists7 pm: too few checklists (8203) to judge8 pm: too few checklists (4425) to judge9 pm: too few checklists (1829) to judge10 pm: too few checklists (597) to judge11 pm: too few checklists (309) 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
January6.2%6.3%5.9%6.4%
February6.9%7.6%6.9%7.0%
March6.6%6.4%5.9%5.5%
April6.0%5.9%6.1%6.9%
May7.4%6.1%5.0%4.2%
June4.4%4.2%3.9%4.5%
July5.3%5.1%6.3%7.8%
August9.3%10%8.6%8.7%
September8.1%8.7%8.8%8.8%
October9.7%8.1%9.1%8.5%
November8.2%7.2%7.0%7.6%
December7.4%8.2%7.3%7.2%

Neighboring states

Common questions

When do Carolina Wrens arrive in Vermont?
The Carolina Wren is in Vermont all year. It turns up on about 9.3% of checklists at its peak (the second week of August) and on 4.2% in its quietest week (the second week of June).
When do Carolina Wrens leave Vermont?
The Carolina Wren does not leave Vermont: it is reported all year, from 4.2% of checklists in the second week of June to 9.3% in the second week of August.
When is the best time to see a Carolina Wren in Vermont?
The Carolina Wren is reported most often in the second week of August, on about 9.3% of Vermont checklists.
Where in Vermont are Carolina Wrens seen most often?
By county, Windham County, Bennington County, and Rutland County have the highest peak reporting rates for the Carolina Wren (counties with at least 200 checklists).