WhenToBird

Thryomanes bewickii · Troglodytidae

When Do Bewick's Wrens Arrive in Oklahoma?

Adult Bewick's Wren
Photo: Fernando Pérez Peralta, CC0 1.0 via iNaturalist

Bewick's Wrens are in Oklahoma all year, but most are here in summer: numbers build from the second week of May, peak in the second week of June (7.2% of checklists), and fall back by late July. In the quietest week (early November) they are still on about 2.9% of checklists.

When to look

Numbers buildMay 8-14the second week of May
PeakJun 8-14the second week of June
Fall back byJul 22-31late July
FewestNov 1-7early November

Best: the second week of June. Here all year; numbers build from the second week of May and fall back by late July. Peak: on about 7.2% of Oklahoma checklists.

  1. Jancommon
  2. Febcommon
  3. Marpeak season
  4. Aprcommon
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%2%4%6%8%Jan 1-7: 3.4% of 6087 checklistsJan 8-14: 3.2% of 4350 checklistsJan 15-21: 3.6% of 4381 checklistsJan 22-31: 3.5% of 6165 checklistsFeb 1-7: 4.0% of 4259 checklistsFeb 8-14: 3.9% of 4589 checklistsFeb 15-21: 3.5% of 7001 checklistsFeb 22-28: 4.2% of 4482 checklistsMar 1-7: 4.5% of 4724 checklistsMar 8-14: 5.3% of 4571 checklistsMar 15-21: 6.9% of 4393 checklistsMar 22-31: 5.7% of 7544 checklistsApr 1-7: 4.6% of 5967 checklistsApr 8-14: 4.6% of 6543 checklistsApr 15-21: 4.9% of 7366 checklistsApr 22-30: 4.6% of 10618 checklistsMay 1-7: 4.9% of 8835 checklistsMay 8-14: 5.3% of 8247 checklistsMay 15-21: 5.7% of 6081 checklistsMay 22-31: 6.7% of 7283 checklistsJun 1-7: 7.6% of 4256 checklistsJun 8-14: 7.0% of 3774 checklistsJun 15-21: 7.1% of 3541 checklistsJun 22-30: 5.8% of 4159 checklistsJul 1-7: 6.1% of 3209 checklistsJul 8-14: 5.4% of 2916 checklistsJul 15-21: 5.1% of 2861 checklistsJul 22-31: 6.1% of 4146 checklistsAug 1-7: 4.1% of 3043 checklistsAug 8-14: 3.8% of 2839 checklistsAug 15-21: 3.8% of 3014 checklistsAug 22-31: 4.2% of 4759 checklistsSep 1-7: 4.6% of 3861 checklistsSep 8-14: 4.7% of 3748 checklistsSep 15-21: 5.2% of 3569 checklistsSep 22-30: 4.3% of 4830 checklistsOct 1-7: 4.1% of 3809 checklistsOct 8-14: 3.0% of 4142 checklistsOct 15-21: 3.2% of 3705 checklistsOct 22-31: 2.8% of 4738 checklistsNov 1-7: 2.9% of 3823 checklistsNov 8-14: 2.8% of 3849 checklistsNov 15-21: 2.9% of 3722 checklistsNov 22-30: 4.0% of 4795 checklistsDec 1-7: 4.2% of 3324 checklistsDec 8-14: 3.8% of 3574 checklistsDec 15-21: 2.9% of 3884 checklistsDec 22-31: 3.5% of 5774 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 Oklahoma 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 Oklahoma

Best counties

Share of checklists at the peak
  1. Grady CountyBest the second week of September · 16 checklists that week, 1,226 in all43%
  2. Major CountyBest late May · 55 checklists that week, 631 in all37%
  3. Cotton CountyBest the second week of March · 13 checklists that week, 765 in all35%
  4. Harmon CountyBest mid February · 17 checklists that week, 340 in all33%
  5. McClain CountyBest early December · 33 checklists that week, 1,112 in all32%
  6. Logan CountyBest late July · 123 checklists that week, 5,258 in all30%

Best spots

Share of checklists at the peak
  1. Carl Etling Public Fishing AreaCimarron County, best early May · 21 checklists that week, 497 in all44%
  2. Lake Carl EtlingCimarron County, best early September · 27 checklists that week, 413 in all42%
  3. CLO Lands (Kenton)Cimarron County, best late May · 21 checklists that week, 329 in all33%
  4. Quanah Parker LakeComanche County, best late April · 25 checklists that week, 296 in all23%
  5. Lake Thunderbird State Park (east)Cleveland County, best early January · 27 checklists that week, 338 in all19%

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

Best time of day

In Oklahoma, the Bewick's Wren is most often listed on checklists started between 6 and 8 am (8.4% of those checklists).

0%5%10%15%12 am: too few checklists (91) to judge1 am: too few checklists (65) to judge2 am: too few checklists (73) to judge3 am: too few checklists (73) to judge4 am: too few checklists (100) to judge5 am: too few checklists (647) to judge6 am: 12% of 8353 checklists7 am: 7.3% of 24509 checklists8 am: 6.1% of 27848 checklists9 am: 4.9% of 25316 checklists10 am: 4.3% of 21161 checklists11 am: 3.8% of 18730 checklists12 pm: 3.4% of 16097 checklists1 pm: 3.3% of 14028 checklists2 pm: 3.0% of 13599 checklists3 pm: 2.9% of 14228 checklists4 pm: 2.6% of 14597 checklists5 pm: 2.7% of 12125 checklists6 pm: 3.4% of 9337 checklists7 pm: 3.4% of 6944 checklists8 pm: too few checklists (2403) to judge9 pm: too few checklists (459) to judge10 pm: too few checklists (226) to judge11 pm: too few checklists (141) 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
January3.4%3.2%3.6%3.5%
February4.0%3.9%3.5%4.2%
March4.5%5.3%6.9%5.7%
April4.6%4.6%4.9%4.6%
May4.9%5.3%5.7%6.7%
June7.6%7.0%7.1%5.8%
July6.1%5.4%5.1%6.1%
August4.1%3.8%3.8%4.2%
September4.6%4.7%5.2%4.3%
October4.1%3.0%3.2%2.8%
November2.9%2.8%2.9%4.0%
December4.2%3.8%2.9%3.5%

Neighboring states

  • Texas: year-round, peaks early June
  • New Mexico: year-round, peaks the second week of April
  • Colorado: arrives late February, 10 weeks earlier than Oklahoma
  • Arizona: year-round, peaks mid March

Common questions

When do Bewick's Wrens arrive in Oklahoma?
Bewick's Wrens are in Oklahoma all year, but most are here in summer: numbers build from the second week of May, peak in the second week of June (7.2% of checklists), and fall back by late July. In the quietest week (early November) they are still on about 2.9% of checklists.
When do Bewick's Wrens leave Oklahoma?
Bewick's Wrens never fully leave Oklahoma: numbers fall back below half their usual rate by late July, but some are still reported in every week, about 2.9% of checklists at the low.
When is the best time to see a Bewick's Wren in Oklahoma?
The Bewick's Wren is reported most often in the second week of June, on about 7.2% of Oklahoma checklists.
Where in Oklahoma are Bewick's Wrens seen most often?
By county, Grady County, Major County, and Cotton County have the highest peak reporting rates for the Bewick's Wren (counties with at least 200 checklists).