WhenToBird

Mniotilta varia · Parulidae

When Do Black-and-white Warblers Arrive in Nebraska?

Adult female Black-and-white Warbler
Photo: Donald Davesne, CC BY 4.0 via iNaturalist

Black-and-white Warblers mostly pass through Nebraska: they arrive in late April, peak in the second week of May (5.3% of checklists), and most are gone by mid June.

When to look

First arrivalsApr 22-30late April
Common byApr 22-30late April
PeakMay 8-14the second week of May
Most gone byJun 15-21mid June

Best: the second week of May. First arrivals late April; most are gone by mid June. Peak: on about 5.3% of Nebraska checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Aprcommon
  5. Maypeak season
  6. Jununcommon
  7. Julrare
  8. Auguncommon
  9. Sepcommon
  10. Octrare
  11. Novnot usually seen
  12. Decnot usually seen

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

0%2%4%6%8%Jan 1-7: 0% of 4210 checklistsJan 8-14: 0% of 2891 checklistsJan 15-21: 0% of 2685 checklistsJan 22-31: 0% of 3834 checklistsFeb 1-7: 0% of 2803 checklistsFeb 8-14: 0% of 3134 checklistsFeb 15-21: 0% of 4508 checklistsFeb 22-28: 0% of 3238 checklistsMar 1-7: 0% of 3862 checklistsMar 8-14: 0% of 4894 checklistsMar 15-21: 0% of 5862 checklistsMar 22-31: 0% of 8598 checklistsApr 1-7: 0% of 5530 checklistsApr 8-14: 0% of 5528 checklistsApr 15-21: 0.1% of 6091 checklistsApr 22-30: 0.9% of 8661 checklistsMay 1-7: 5.1% of 9842 checklistsMay 8-14: 7.0% of 10044 checklistsMay 15-21: 3.6% of 8863 checklistsMay 22-31: 2.0% of 10207 checklistsJun 1-7: 1.4% of 4922 checklistsJun 8-14: 0.7% of 4054 checklistsJun 15-21: 0.9% of 3680 checklistsJun 22-30: 0.8% of 4349 checklistsJul 1-7: 0.3% of 3277 checklistsJul 8-14: 0.5% of 2803 checklistsJul 15-21: 0.1% of 2842 checklistsJul 22-31: 0.2% of 3920 checklistsAug 1-7: 0.1% of 2981 checklistsAug 8-14: 0.4% of 2819 checklistsAug 15-21: 0.4% of 3179 checklistsAug 22-31: 2.2% of 4599 checklistsSep 1-7: 3.1% of 3958 checklistsSep 8-14: 3.6% of 3460 checklistsSep 15-21: 1.4% of 3435 checklistsSep 22-30: 0.5% of 4975 checklistsOct 1-7: 0% of 3611 checklistsOct 8-14: 0% of 3605 checklistsOct 15-21: 0% of 3474 checklistsOct 22-31: 0% of 4352 checklistsNov 1-7: 0.1% of 3119 checklistsNov 8-14: 0% of 2887 checklistsNov 15-21: 0% of 2568 checklistsNov 22-30: 0% of 3506 checklistsDec 1-7: 0% of 2453 checklistsDec 8-14: 0% of 2756 checklistsDec 15-21: 0% of 3760 checklistsDec 22-31: 0% of 3746 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 Nebraska 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 Nebraska

Best counties

Share of checklists at the peak
  1. Brown CountyBest late May · 32 checklists that week, 660 in all22%
  2. Douglas CountyBest the second week of May · 1525 checklists that week, 25,023 in all13%
  3. Rock CountyBest late June · 23 checklists that week, 725 in all12%
  4. Keya Paha CountyBest the second week of June · 26 checklists that week, 455 in all11%
  5. Cherry CountyBest early June · 196 checklists that week, 3,940 in all10%
  6. Dakota CountyBest the second week of May · 95 checklists that week, 2,182 in all10%

Best spots

Share of checklists at the peak
  1. Gilbert-baker Wildlife Management AreaSioux County, best late May · 23 checklists that week, 182 in all51%
  2. Hanscom ParkDouglas County, best the second week of May · 23 checklists that week, 133 in all33%
  3. Walnut Grove ParkDouglas County, best early September · 22 checklists that week, 516 in all33%
  4. Towl ParkDouglas County, best the second week of May · 214 checklists that week, 1,437 in all31%
  5. Hummel ParkDouglas County, best early May · 28 checklists that week, 181 in all26%

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

Best time of day

In Nebraska, the Black-and-white Warbler is most often listed on checklists started between 6 and 8 am (2.0% of those checklists).

0%1%2%3%12 am: too few checklists (60) to judge1 am: too few checklists (70) to judge2 am: too few checklists (74) to judge3 am: too few checklists (97) to judge4 am: too few checklists (318) to judge5 am: too few checklists (1382) to judge6 am: 2.6% of 6945 checklists7 am: 1.8% of 19066 checklists8 am: 1.8% of 24661 checklists9 am: 1.2% of 23438 checklists10 am: 1.0% of 20424 checklists11 am: 1.0% of 16727 checklists12 pm: 0.7% of 14774 checklists1 pm: 1.0% of 14443 checklists2 pm: 0.7% of 14830 checklists3 pm: 0.8% of 14445 checklists4 pm: 0.8% of 13353 checklists5 pm: 0.9% of 10506 checklists6 pm: 0.9% of 9208 checklists7 pm: 0.4% of 6334 checklists8 pm: too few checklists (2406) to judge9 pm: too few checklists (531) to judge10 pm: too few checklists (201) to judge11 pm: too few checklists (82) 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%0%0%0%
February0%0%0%0%
March0%0%0%0%
April0%0%0.1%0.9%
May5.1%7.0%3.6%2.0%
June1.4%0.7%0.9%0.8%
July0.3%0.5%0.1%0.2%
August0.1%0.4%0.4%2.2%
September3.1%3.6%1.4%0.5%
October0%0%0%0%
November0.1%0%0%0%
December0%0%0%0%

Neighboring states

  • Kansas: arrives the second week of April, 2 weeks earlier than Nebraska
  • South Dakota: arrives late April, in the same week than Nebraska
  • Iowa: arrives the second week of August, 14 weeks later than Nebraska
  • Missouri: arrives late March, 4 weeks earlier than Nebraska

Common questions

When do Black-and-white Warblers arrive in Nebraska?
Black-and-white Warblers mostly pass through Nebraska: they arrive in late April, peak in the second week of May (5.3% of checklists), and most are gone by mid June.
When do Black-and-white Warblers leave Nebraska?
Most Black-and-white Warblers have left Nebraska by mid June, when reports fall below half their usual rate.
When is the best time to see a Black-and-white Warbler in Nebraska?
The Black-and-white Warbler is reported most often in the second week of May, on about 5.3% of Nebraska checklists.
Where in Nebraska are Black-and-white Warblers seen most often?
By county, Brown County, Douglas County, and Rock County have the highest peak reporting rates for the Black-and-white Warbler (counties with at least 200 checklists).