WhenToBird

Bubo virginianus · Strigidae

When Do Great Horned Owls Arrive in Ohio?

Adult Great Horned Owl
Photo: Michael Warner, CC BY 4.0 via iNaturalist

Great Horned Owls arrive in Ohio in mid August, peak in the second week of April (1.4% of checklists), and most are gone by mid May.

When to look

First arrivalsAug 15-21mid August
Common byAug 15-21mid August
PeakApr 8-14the second week of April
Most gone byMay 15-21mid May

Best: the second week of April. First arrivals mid August; most are gone by mid May. Peak: on about 1.4% of Ohio checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Jununcommon
  7. Juluncommon
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Decpeak season

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

0%0.5%1%1.5%Jan 1-7: 1.3% of 46637 checklistsJan 8-14: 1.1% of 31056 checklistsJan 15-21: 1.0% of 30129 checklistsJan 22-31: 1.2% of 38665 checklistsFeb 1-7: 1.3% of 27203 checklistsFeb 8-14: 1.0% of 30626 checklistsFeb 15-21: 1.0% of 40705 checklistsFeb 22-28: 1.2% of 31391 checklistsMar 1-7: 1.2% of 32914 checklistsMar 8-14: 1.3% of 33973 checklistsMar 15-21: 1.2% of 33678 checklistsMar 22-31: 1.3% of 49889 checklistsApr 1-7: 1.4% of 41225 checklistsApr 8-14: 1.4% of 47174 checklistsApr 15-21: 1.3% of 47017 checklistsApr 22-30: 1.0% of 73055 checklistsMay 1-7: 1.4% of 80637 checklistsMay 8-14: 1.3% of 102552 checklistsMay 15-21: 0.6% of 64582 checklistsMay 22-31: 0.4% of 52766 checklistsJun 1-7: 0.3% of 29279 checklistsJun 8-14: 0.3% of 25773 checklistsJun 15-21: 0.2% of 23163 checklistsJun 22-30: 0.3% of 27794 checklistsJul 1-7: 0.3% of 23334 checklistsJul 8-14: 0.3% of 22147 checklistsJul 15-21: 0.3% of 20998 checklistsJul 22-31: 0.4% of 29749 checklistsAug 1-7: 0.3% of 22899 checklistsAug 8-14: 0.4% of 21972 checklistsAug 15-21: 0.5% of 22215 checklistsAug 22-31: 0.5% of 35087 checklistsSep 1-7: 0.6% of 29148 checklistsSep 8-14: 0.6% of 28042 checklistsSep 15-21: 0.7% of 26751 checklistsSep 22-30: 0.8% of 32398 checklistsOct 1-7: 0.8% of 26209 checklistsOct 8-14: 0.8% of 26809 checklistsOct 15-21: 0.7% of 23504 checklistsOct 22-31: 0.8% of 33269 checklistsNov 1-7: 0.8% of 25563 checklistsNov 8-14: 0.8% of 23810 checklistsNov 15-21: 0.9% of 22127 checklistsNov 22-30: 0.8% of 29449 checklistsDec 1-7: 0.9% of 22370 checklistsDec 8-14: 0.9% of 21581 checklistsDec 15-21: 1.1% of 24232 checklistsDec 22-31: 0.8% of 36084 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 Ohio 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 Ohio

Best counties

Share of checklists at the peak
  1. Hardin CountyBest early November · 56 checklists that week, 4,583 in all11%
  2. Putnam CountyBest late April · 64 checklists that week, 927 in all11%
  3. Ross CountyBest the second week of December · 25 checklists that week, 3,213 in all11%
  4. Wood CountyBest mid December · 321 checklists that week, 14,707 in all7.9%
  5. Brown CountyBest late October · 38 checklists that week, 1,793 in all6.2%
  6. Erie CountyBest the second week of April · 744 checklists that week, 30,456 in all6.0%

Best spots

Share of checklists at the peak
  1. Wintergarden/St. John's Nature PreserveWood County, best early January · 40 checklists that week, 2,565 in all53%
  2. Mohicanville Reservoir (Craigton)Wayne County, best early April · 25 checklists that week, 388 in all45%
  3. Ottawa National Wildlife RefugeOttawa County, best the second week of February · 37 checklists that week, 3,647 in all40%
  4. Eastwood Metropark (Harries)Montgomery County, best mid March · 24 checklists that week, 1,103 in all39%
  5. Francis RecreacresHamilton County, best the second week of April · 26 checklists that week, 1,043 in all38%

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

Best time of day

In Ohio, the Great Horned Owl is most often listed on checklists started between 6 and 8 pm (1.6% of those checklists).

0%1%2%3%12 am: too few checklists (574) to judge1 am: too few checklists (609) to judge2 am: too few checklists (466) to judge3 am: too few checklists (478) to judge4 am: too few checklists (662) to judge5 am: too few checklists (4366) to judge6 am: 2.2% of 43093 checklists7 am: 1.0% of 142017 checklists8 am: 0.6% of 205296 checklists9 am: 0.6% of 196322 checklists10 am: 0.6% of 170882 checklists11 am: 0.6% of 144567 checklists12 pm: 0.5% of 126551 checklists1 pm: 0.6% of 117855 checklists2 pm: 0.7% of 112869 checklists3 pm: 0.8% of 109786 checklists4 pm: 1.2% of 103116 checklists5 pm: 1.4% of 78409 checklists6 pm: 1.5% of 56785 checklists7 pm: 1.8% of 37923 checklists8 pm: too few checklists (14954) to judge9 pm: too few checklists (2710) to judge10 pm: too few checklists (854) to judge11 pm: too few checklists (486) 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
January1.3%1.1%1.0%1.2%
February1.3%1.0%1.0%1.2%
March1.2%1.3%1.2%1.3%
April1.4%1.4%1.3%1.0%
May1.4%1.3%0.6%0.4%
June0.3%0.3%0.2%0.3%
July0.3%0.3%0.3%0.4%
August0.3%0.4%0.5%0.5%
September0.6%0.6%0.7%0.8%
October0.8%0.8%0.7%0.8%
November0.8%0.8%0.9%0.8%
December0.9%0.9%1.1%0.8%

Neighboring states

  • Indiana: arrives the second week of August, 1 week earlier than Ohio
  • Michigan: arrives mid August, in the same week than Ohio
  • Kentucky: arrives late July, 3 weeks earlier than Ohio
  • Pennsylvania: arrives late August, 1 week later than Ohio

Common questions

When do Great Horned Owls arrive in Ohio?
Great Horned Owls arrive in Ohio in mid August, peak in the second week of April (1.4% of checklists), and most are gone by mid May.
When do Great Horned Owls leave Ohio?
Most Great Horned Owls have left Ohio by mid May, when reports fall below half their usual rate.
When is the best time to see a Great Horned Owl in Ohio?
The Great Horned Owl is reported most often in the second week of April, on about 1.4% of Ohio checklists.
Where in Ohio are Great Horned Owls seen most often?
By county, Hardin County, Putnam County, and Ross County have the highest peak reporting rates for the Great Horned Owl (counties with at least 200 checklists).