WhenToBird

Leuconotopicus villosus · Picidae

When Do Hairy Woodpeckers Arrive in Iowa?

Adult male Hairy Woodpecker
Photo: yongestation, CC BY 4.0 via iNaturalist

The Hairy Woodpecker is in Iowa all year. It turns up on about 21% of checklists at its peak (mid December) and on 9.6% in its quietest week (mid July).

When to look

PresentAll year
Peak weekDec 15-21mid December
Quietest weekJul 15-21mid July

Best: mid December. Here all year. Peak: on about 21% of Iowa checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marcommon
  4. Aprcommon
  5. Maypeak season
  6. Juncommon
  7. Julcommon
  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%10%20%30%Jan 1-7: 19% of 5551 checklistsJan 8-14: 18% of 3498 checklistsJan 15-21: 19% of 3803 checklistsJan 22-31: 20% of 4807 checklistsFeb 1-7: 21% of 3613 checklistsFeb 8-14: 21% of 4173 checklistsFeb 15-21: 18% of 5796 checklistsFeb 22-28: 17% of 4394 checklistsMar 1-7: 14% of 5295 checklistsMar 8-14: 13% of 5679 checklistsMar 15-21: 12% of 5418 checklistsMar 22-31: 13% of 8613 checklistsApr 1-7: 14% of 6970 checklistsApr 8-14: 15% of 7511 checklistsApr 15-21: 14% of 8321 checklistsApr 22-30: 15% of 11976 checklistsMay 1-7: 18% of 11725 checklistsMay 8-14: 17% of 12626 checklistsMay 15-21: 16% of 9372 checklistsMay 22-31: 14% of 10330 checklistsJun 1-7: 9.9% of 5472 checklistsJun 8-14: 9.5% of 4568 checklistsJun 15-21: 9.7% of 3870 checklistsJun 22-30: 11% of 4780 checklistsJul 1-7: 10% of 4201 checklistsJul 8-14: 9.7% of 3605 checklistsJul 15-21: 9.4% of 3621 checklistsJul 22-31: 9.8% of 5093 checklistsAug 1-7: 9.9% of 3931 checklistsAug 8-14: 9.6% of 3488 checklistsAug 15-21: 13% of 3802 checklistsAug 22-31: 16% of 6293 checklistsSep 1-7: 19% of 5328 checklistsSep 8-14: 20% of 4622 checklistsSep 15-21: 20% of 4367 checklistsSep 22-30: 20% of 6086 checklistsOct 1-7: 17% of 4708 checklistsOct 8-14: 17% of 4791 checklistsOct 15-21: 16% of 4429 checklistsOct 22-31: 17% of 5633 checklistsNov 1-7: 17% of 4090 checklistsNov 8-14: 18% of 3416 checklistsNov 15-21: 17% of 3398 checklistsNov 22-30: 18% of 4679 checklistsDec 1-7: 17% of 3442 checklistsDec 8-14: 19% of 3322 checklistsDec 15-21: 22% of 4619 checklistsDec 22-31: 22% of 5113 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 Iowa 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 Iowa

Best counties

Share of checklists at the peak
  1. Lucas CountyBest late January · 51 checklists that week, 2,217 in all68%
  2. Bremer CountyBest early January · 64 checklists that week, 3,421 in all63%
  3. Jones CountyBest late November · 13 checklists that week, 541 in all58%
  4. Mitchell CountyBest the second week of September · 23 checklists that week, 660 in all57%
  5. Warren CountyBest the second week of January · 14 checklists that week, 1,278 in all57%
  6. Clarke CountyBest early January · 10 checklists that week, 459 in all53%

Best spots

Share of checklists at the peak
  1. Hartman Reserve Nature CenterBlack Hawk County, best late September · 22 checklists that week, 711 in all76%
  2. Reactor WoodsStory County, best mid May · 34 checklists that week, 397 in all75%
  3. MacBride Recreation AreaJohnson County, best early February · 21 checklists that week, 445 in all75%
  4. Walnut Woods State ParkPolk County, best early January · 40 checklists that week, 643 in all75%
  5. Carr ParkStory County, best early October · 22 checklists that week, 1,200 in all74%
  6. Wickiup Hill Natural AreaLinn County, best late January · 33 checklists that week, 622 in all69%

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

Best time of day

In Iowa, the Hairy Woodpecker is most often listed on checklists started between 6 and 8 am (21% of those checklists).

0%10%20%30%12 am: too few checklists (96) to judge1 am: too few checklists (99) to judge2 am: too few checklists (67) to judge3 am: too few checklists (82) to judge4 am: too few checklists (201) to judge5 am: too few checklists (1888) to judge6 am: 22% of 11313 checklists7 am: 20% of 25717 checklists8 am: 18% of 29755 checklists9 am: 16% of 28897 checklists10 am: 16% of 26343 checklists11 am: 14% of 21210 checklists12 pm: 14% of 17662 checklists1 pm: 15% of 16595 checklists2 pm: 15% of 16405 checklists3 pm: 16% of 17030 checklists4 pm: 14% of 17378 checklists5 pm: 13% of 14251 checklists6 pm: 11% of 10349 checklists7 pm: 8.5% of 6233 checklists8 pm: too few checklists (2002) to judge9 pm: too few checklists (392) to judge10 pm: too few checklists (186) to judge11 pm: too few checklists (87) 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
January19%18%19%20%
February21%21%18%17%
March14%13%12%13%
April14%15%14%15%
May18%17%16%14%
June9.9%9.5%9.7%11%
July10%9.7%9.4%9.8%
August9.9%9.6%13%16%
September19%20%20%20%
October17%17%16%17%
November17%18%17%18%
December17%19%22%22%

Neighboring states

Common questions

When do Hairy Woodpeckers arrive in Iowa?
The Hairy Woodpecker is in Iowa all year. It turns up on about 21% of checklists at its peak (mid December) and on 9.6% in its quietest week (mid July).
When do Hairy Woodpeckers leave Iowa?
The Hairy Woodpecker does not leave Iowa: it is reported all year, from 9.6% of checklists in mid July to 21% in mid December.
When is the best time to see a Hairy Woodpecker in Iowa?
The Hairy Woodpecker is reported most often in mid December, on about 21% of Iowa checklists.
Where in Iowa are Hairy Woodpeckers seen most often?
By county, Lucas County, Bremer County, and Jones County have the highest peak reporting rates for the Hairy Woodpecker (counties with at least 200 checklists).