WhenToBird

Leiothlypis celata · Parulidae

When Do Orange-crowned Warblers Arrive in Indiana?

Adult Orange-crowned Warbler
Photo: Irene, CC0 1.0 via iNaturalist

Orange-crowned Warblers mostly pass through Indiana: they arrive in the second week of September, peak in the second week of October (3.1% of checklists), and most are gone by late November.

When to look

First arrivalsSep 8-14the second week of September
Common bySep 8-14the second week of September
PeakOct 8-14the second week of October
Most gone byNov 22-30late November

Best: the second week of October. First arrivals the second week of September; most are gone by late November. Peak: on about 3.1% of Indiana checklists.

  1. Janrare
  2. Febrare
  3. Marnot usually seen
  4. Apruncommon
  5. Mayuncommon
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepcommon
  10. Octpeak season
  11. Novuncommon
  12. Decnot usually seen

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

0%1%2%3%4%Jan 1-7: 0.1% of 18123 checklistsJan 8-14: 0.2% of 12006 checklistsJan 15-21: 0.1% of 12403 checklistsJan 22-31: 0.1% of 16181 checklistsFeb 1-7: 0.2% of 12546 checklistsFeb 8-14: 0.2% of 14250 checklistsFeb 15-21: 0.1% of 18077 checklistsFeb 22-28: 0.1% of 13590 checklistsMar 1-7: 0.1% of 14545 checklistsMar 8-14: 0.1% of 14594 checklistsMar 15-21: 0.1% of 13894 checklistsMar 22-31: 0.1% of 22400 checklistsApr 1-7: 0.1% of 18069 checklistsApr 8-14: 0.2% of 19579 checklistsApr 15-21: 0.6% of 19518 checklistsApr 22-30: 1.2% of 30544 checklistsMay 1-7: 1.3% of 28430 checklistsMay 8-14: 1.0% of 30624 checklistsMay 15-21: 0.4% of 22920 checklistsMay 22-31: 0.1% of 21234 checklistsJun 1-7: 0% of 12279 checklistsJun 8-14: 0% of 10904 checklistsJun 15-21: 0% of 9488 checklistsJun 22-30: 0% of 11362 checklistsJul 1-7: 0% of 9947 checklistsJul 8-14: 0% of 9585 checklistsJul 15-21: 0% of 8929 checklistsJul 22-31: 0% of 12639 checklistsAug 1-7: 0% of 9528 checklistsAug 8-14: 0% of 9451 checklistsAug 15-21: 0% of 9442 checklistsAug 22-31: 0.1% of 14969 checklistsSep 1-7: 0.1% of 12628 checklistsSep 8-14: 0.1% of 11793 checklistsSep 15-21: 0.4% of 11396 checklistsSep 22-30: 1.5% of 14203 checklistsOct 1-7: 2.7% of 11365 checklistsOct 8-14: 3.3% of 12092 checklistsOct 15-21: 3.5% of 10440 checklistsOct 22-31: 2.4% of 13883 checklistsNov 1-7: 0.7% of 10476 checklistsNov 8-14: 0.2% of 9776 checklistsNov 15-21: 0.1% of 9035 checklistsNov 22-30: 0.1% of 12547 checklistsDec 1-7: 0.1% of 9078 checklistsDec 8-14: 0.1% of 8732 checklistsDec 15-21: 0.1% of 11024 checklistsDec 22-31: 0.1% of 15432 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 Indiana 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 Indiana

Best counties

Share of checklists at the peak
  1. Pike CountyBest mid October · 19 checklists that week, 2,105 in all22%
  2. Spencer CountyBest late October · 35 checklists that week, 2,477 in all14%
  3. Warrick CountyBest mid October · 134 checklists that week, 10,073 in all12%
  4. Dubois CountyBest late October · 26 checklists that week, 1,896 in all12%
  5. Lake CountyBest the second week of October · 395 checklists that week, 22,199 in all12%
  6. Posey CountyBest late October · 43 checklists that week, 2,179 in all12%

Best spots

Share of checklists at the peak
  1. Lakefront ParkLake County, best the second week of October · 27 checklists that week, 1,190 in all52%
  2. Cowles BogPorter County, best the second week of October · 63 checklists that week, 2,662 in all20%
  3. Purdue University PondTippecanoe County, best the second week of October · 23 checklists that week, 948 in all17%
  4. Cool Creek ParkHamilton County, best mid October · 32 checklists that week, 2,075 in all15%

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

Best time of day

In Indiana, the Orange-crowned Warbler is most often listed on checklists started between 6 and 8 am (0.9% of those checklists).

0%0.5%1%1.5%12 am: too few checklists (240) to judge1 am: too few checklists (231) to judge2 am: too few checklists (222) to judge3 am: too few checklists (202) to judge4 am: too few checklists (674) to judge5 am: too few checklists (4329) to judge6 am: 1.1% of 20589 checklists7 am: 0.8% of 58470 checklists8 am: 0.7% of 86931 checklists9 am: 0.5% of 78239 checklists10 am: 0.4% of 66080 checklists11 am: 0.4% of 54904 checklists12 pm: 0.4% of 47610 checklists1 pm: 0.4% of 44814 checklists2 pm: 0.3% of 43790 checklists3 pm: 0.4% of 42983 checklists4 pm: 0.3% of 45349 checklists5 pm: 0.4% of 35993 checklists6 pm: 0.2% of 26447 checklists7 pm: 0.1% of 17740 checklists8 pm: too few checklists (7603) to judge9 pm: too few checklists (1721) to judge10 pm: too few checklists (517) to judge11 pm: too few checklists (272) 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
January0.1%0.2%0.1%0.1%
February0.2%0.2%0.1%0.1%
March0.1%0.1%0.1%0.1%
April0.1%0.2%0.6%1.2%
May1.3%1.0%0.4%0.1%
June0%0%0%0%
July0%0%0%0%
August0%0%0%0.1%
September0.1%0.1%0.4%1.5%
October2.7%3.3%3.5%2.4%
November0.7%0.2%0.1%0.1%
December0.1%0.1%0.1%0.1%

Neighboring states

  • Illinois: arrives early September, 1 week earlier than Indiana
  • Kentucky: arrives the second week of September, in the same week than Indiana
  • Ohio: arrives the second week of September, in the same week than Indiana
  • Michigan: arrives the second week of September, in the same week than Indiana

Common questions

When do Orange-crowned Warblers arrive in Indiana?
Orange-crowned Warblers mostly pass through Indiana: they arrive in the second week of September, peak in the second week of October (3.1% of checklists), and most are gone by late November.
When do Orange-crowned Warblers leave Indiana?
Most Orange-crowned Warblers have left Indiana by late November, when reports fall below half their usual rate.
When is the best time to see a Orange-crowned Warbler in Indiana?
The Orange-crowned Warbler is reported most often in the second week of October, on about 3.1% of Indiana checklists.
Where in Indiana are Orange-crowned Warblers seen most often?
By county, Pike County, Spencer County, and Warrick County have the highest peak reporting rates for the Orange-crowned Warbler (counties with at least 200 checklists).