WhenToBird

Aimophila ruficeps · Passerellidae

When Do Rufous-crowned Sparrows Arrive in Oklahoma?

Adult Rufous-crowned Sparrow
Photo: Dan Fitzgerald (Fitz), CC0 1.0 via iNaturalist

Rufous-crowned Sparrows arrive in Oklahoma in late February, peak in early June (1.4% of checklists), and most are gone by mid October.

When to look

First arrivalsFeb 22-28late February
Common byFeb 22-28late February
PeakJun 1-7early June
Most gone byOct 15-21mid October

Best: early June. First arrivals late February; most are gone by mid October. Peak: on about 1.4% of Oklahoma checklists.

  1. Januncommon
  2. Febuncommon
  3. Maruncommon
  4. Aprcommon
  5. Maypeak season
  6. Junpeak season
  7. Julcommon
  8. Augcommon
  9. Sepcommon
  10. Octuncommon
  11. Novuncommon
  12. Decuncommon

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

0%0.5%1%1.5%2%Jan 1-7: 0.6% of 6087 checklistsJan 8-14: 0.1% of 4350 checklistsJan 15-21: 0.4% of 4381 checklistsJan 22-31: 0.3% of 6165 checklistsFeb 1-7: 0.3% of 4259 checklistsFeb 8-14: 0.2% of 4589 checklistsFeb 15-21: 0.3% of 7001 checklistsFeb 22-28: 0.3% of 4482 checklistsMar 1-7: 0.4% of 4724 checklistsMar 8-14: 0.4% of 4571 checklistsMar 15-21: 0.5% of 4393 checklistsMar 22-31: 0.3% of 7544 checklistsApr 1-7: 0.4% of 5967 checklistsApr 8-14: 0.5% of 6543 checklistsApr 15-21: 1.1% of 7366 checklistsApr 22-30: 0.8% of 10618 checklistsMay 1-7: 1.0% of 8835 checklistsMay 8-14: 0.9% of 8247 checklistsMay 15-21: 1.2% of 6081 checklistsMay 22-31: 1.5% of 7283 checklistsJun 1-7: 1.4% of 4256 checklistsJun 8-14: 1.3% of 3774 checklistsJun 15-21: 1.6% of 3541 checklistsJun 22-30: 1.2% of 4159 checklistsJul 1-7: 1.2% of 3209 checklistsJul 8-14: 0.6% of 2916 checklistsJul 15-21: 0.9% of 2861 checklistsJul 22-31: 0.7% of 4146 checklistsAug 1-7: 0.7% of 3043 checklistsAug 8-14: 0.4% of 2839 checklistsAug 15-21: 0.7% of 3014 checklistsAug 22-31: 0.6% of 4759 checklistsSep 1-7: 1.0% of 3861 checklistsSep 8-14: 0.8% of 3748 checklistsSep 15-21: 0.7% of 3569 checklistsSep 22-30: 0.3% of 4830 checklistsOct 1-7: 0.3% of 3809 checklistsOct 8-14: 0.4% of 4142 checklistsOct 15-21: 0.3% of 3705 checklistsOct 22-31: 0.3% of 4738 checklistsNov 1-7: 0.2% of 3823 checklistsNov 8-14: 0.3% of 3849 checklistsNov 15-21: 0.1% of 3722 checklistsNov 22-30: 0.8% of 4795 checklistsDec 1-7: 0.4% of 3324 checklistsDec 8-14: 0.3% of 3574 checklistsDec 15-21: 0.3% of 3884 checklistsDec 22-31: 0.4% 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. Major CountyBest early July · 17 checklists that week, 631 in all29%
  2. Pontotoc CountyBest late January · 11 checklists that week, 308 in all23%
  3. Greer CountyBest late April · 19 checklists that week, 390 in all21%
  4. Beckham CountyBest mid July · 12 checklists that week, 483 in all17%
  5. Kiowa CountyBest early June · 11 checklists that week, 354 in all16%
  6. Comanche CountyBest late May · 399 checklists that week, 9,852 in all15%

Best spots

Share of checklists at the peak
  1. Quanah Parker Lake (Little Baldy)Comanche County, best early May · 25 checklists that week, 199 in all46%
  2. Glass Mountains State ParkMajor County, best early December · 20 checklists that week, 149 in all33%
  3. Lake Carl EtlingCimarron County, best early September · 27 checklists that week, 413 in all32%
  4. Sun Set PoolComanche County, best mid April · 29 checklists that week, 312 in all29%
  5. Quanah Parker LakeComanche County, best late April · 25 checklists that week, 296 in all23%
  6. Carl Etling Public Fishing AreaCimarron County, best early May · 21 checklists that week, 497 in all20%

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

Best time of day

In Oklahoma, the Rufous-crowned Sparrow is most often listed on checklists started between 6 and 8 am (1.0% of those checklists).

0%0.5%1%1.5%2%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: 1.6% of 8353 checklists7 am: 0.8% of 24509 checklists8 am: 0.7% of 27848 checklists9 am: 0.7% of 25316 checklists10 am: 0.6% of 21161 checklists11 am: 0.7% of 18730 checklists12 pm: 0.5% of 16097 checklists1 pm: 0.7% of 14028 checklists2 pm: 0.6% of 13599 checklists3 pm: 0.5% of 14228 checklists4 pm: 0.5% of 14597 checklists5 pm: 0.3% of 12125 checklists6 pm: 0.4% of 9337 checklists7 pm: 0.4% 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
January0.6%0.1%0.4%0.3%
February0.3%0.2%0.3%0.3%
March0.4%0.4%0.5%0.3%
April0.4%0.5%1.1%0.8%
May1.0%0.9%1.2%1.5%
June1.4%1.3%1.6%1.2%
July1.2%0.6%0.9%0.7%
August0.7%0.4%0.7%0.6%
September1.0%0.8%0.7%0.3%
October0.3%0.4%0.3%0.3%
November0.2%0.3%0.1%0.8%
December0.4%0.3%0.3%0.4%

Neighboring states

  • Texas: arrives late January, 4 weeks earlier than Oklahoma
  • New Mexico: year-round, peaks late July
  • Arizona: arrives mid February, 1 week earlier than Oklahoma
  • California: arrives mid January, 5 weeks earlier than Oklahoma

Common questions

When do Rufous-crowned Sparrows arrive in Oklahoma?
Rufous-crowned Sparrows arrive in Oklahoma in late February, peak in early June (1.4% of checklists), and most are gone by mid October.
When do Rufous-crowned Sparrows leave Oklahoma?
Most Rufous-crowned Sparrows have left Oklahoma by mid October, when reports fall below half their usual rate.
When is the best time to see a Rufous-crowned Sparrow in Oklahoma?
The Rufous-crowned Sparrow is reported most often in early June, on about 1.4% of Oklahoma checklists.
Where in Oklahoma are Rufous-crowned Sparrows seen most often?
By county, Major County, Pontotoc County, and Greer County have the highest peak reporting rates for the Rufous-crowned Sparrow (counties with at least 200 checklists).