WhenToBird

Empidonax oberholseri · Tyrannidae

When Do Dusky Flycatchers Arrive in Oregon?

Adult Dusky Flycatcher
Photo: datadan, CC BY 4.0 via iNaturalist

Dusky Flycatchers arrive in Oregon in late April, peak in the second week of June (3.3% of checklists), and most are gone by mid July.

When to look

First arrivalsApr 22-30late April
Common byApr 22-30late April
PeakJun 8-14the second week of June
Most gone byJul 15-21mid July

Best: the second week of June. First arrivals late April; most are gone by mid July. Peak: on about 3.3% of Oregon checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Apruncommon
  5. Maypeak season
  6. Junpeak season
  7. Julcommon
  8. Auguncommon
  9. Seprare
  10. Octnot usually seen
  11. Novnot usually seen
  12. Decnot usually seen

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

0%1%2%3%4%Jan 1-7: 0% of 34973 checklistsJan 8-14: 0% of 26807 checklistsJan 15-21: 0% of 26567 checklistsJan 22-31: 0% of 36019 checklistsFeb 1-7: 0% of 24020 checklistsFeb 8-14: 0% of 25765 checklistsFeb 15-21: 0% of 31019 checklistsFeb 22-28: 0% of 24582 checklistsMar 1-7: 0% of 24834 checklistsMar 8-14: 0% of 24642 checklistsMar 15-21: 0% of 27420 checklistsMar 22-31: 0% of 39913 checklistsApr 1-7: 0% of 28817 checklistsApr 8-14: 0.1% of 31221 checklistsApr 15-21: 0.1% of 34402 checklistsApr 22-30: 1.3% of 47144 checklistsMay 1-7: 2.0% of 37716 checklistsMay 8-14: 2.0% of 39651 checklistsMay 15-21: 2.5% of 37496 checklistsMay 22-31: 3.2% of 56967 checklistsJun 1-7: 3.5% of 35893 checklistsJun 8-14: 3.2% of 31880 checklistsJun 15-21: 3.3% of 30942 checklistsJun 22-30: 2.8% of 38478 checklistsJul 1-7: 1.7% of 27409 checklistsJul 8-14: 1.3% of 25161 checklistsJul 15-21: 1.4% of 25473 checklistsJul 22-31: 1.0% of 33920 checklistsAug 1-7: 0.7% of 24310 checklistsAug 8-14: 0.6% of 23675 checklistsAug 15-21: 0.5% of 23623 checklistsAug 22-31: 0.5% of 33762 checklistsSep 1-7: 0.3% of 25120 checklistsSep 8-14: 0.3% of 24458 checklistsSep 15-21: 0.2% of 25528 checklistsSep 22-30: 0.1% of 31631 checklistsOct 1-7: 0% of 25498 checklistsOct 8-14: 0% of 25161 checklistsOct 15-21: 0% of 23701 checklistsOct 22-31: 0% of 30996 checklistsNov 1-7: 0% of 21089 checklistsNov 8-14: 0.1% of 21880 checklistsNov 15-21: 0% of 21501 checklistsNov 22-30: 0% of 28930 checklistsDec 1-7: 0% of 19807 checklistsDec 8-14: 0% of 21022 checklistsDec 15-21: 0% of 24817 checklistsDec 22-31: 0% of 37592 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 Oregon 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 Oregon

Best counties

Share of checklists at the peak
  1. Grant CountyBest mid June · 330 checklists that week, 6,818 in all20%
  2. Jefferson CountyBest late July · 281 checklists that week, 11,014 in all14%
  3. Umatilla CountyBest mid June · 1276 checklists that week, 17,651 in all12%
  4. Crook CountyBest late June · 377 checklists that week, 9,466 in all12%
  5. Klamath CountyBest the second week of June · 804 checklists that week, 26,875 in all11%
  6. Union CountyBest the second week of June · 706 checklists that week, 33,301 in all9.9%

Best spots

Share of checklists at the peak
  1. Malheur National ForestHarney County, best the second week of June · 47 checklists that week, 702 in all76%
  2. Whiskey SpringJefferson County, best late July · 27 checklists that week, 435 in all41%
  3. Wallowa National ForestWallowa County, best late July · 20 checklists that week, 255 in all38%
  4. Colombia Botanical GardensColumbia County, best early May · 22 checklists that week, 108 in all34%

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

Best time of day

In Oregon, the Dusky Flycatcher is most often listed on checklists started between 6 and 8 am (1.4% of those checklists).

0%1%2%3%12 am: too few checklists (1505) to judge1 am: too few checklists (675) to judge2 am: too few checklists (626) to judge3 am: too few checklists (1641) to judge4 am: too few checklists (3696) to judge5 am: too few checklists (14524) to judge6 am: 2.1% of 50677 checklists7 am: 1.2% of 125347 checklists8 am: 1.0% of 163668 checklists9 am: 0.8% of 160351 checklists10 am: 0.8% of 148940 checklists11 am: 0.7% of 124743 checklists12 pm: 0.6% of 112537 checklists1 pm: 0.6% of 98999 checklists2 pm: 0.5% of 94690 checklists3 pm: 0.4% of 87923 checklists4 pm: 0.5% of 75235 checklists5 pm: 0.6% of 54504 checklists6 pm: 0.6% of 40469 checklists7 pm: 0.6% of 33675 checklists8 pm: too few checklists (18715) to judge9 pm: too few checklists (5839) to judge10 pm: too few checklists (2704) to judge11 pm: too few checklists (1549) 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%0.1%0.1%1.3%
May2.0%2.0%2.5%3.2%
June3.5%3.2%3.3%2.8%
July1.7%1.3%1.4%1.0%
August0.7%0.6%0.5%0.5%
September0.3%0.3%0.2%0.1%
October0%0%0%0%
November0%0.1%0%0%
December0%0%0%0%

Neighboring states

  • Washington: arrives early May, 1 week later than Oregon
  • Idaho: arrives late April, in the same week than Oregon
  • Nevada: arrives the second week of April, 2 weeks earlier than Oregon
  • California: arrives early May, 1 week later than Oregon

Common questions

When do Dusky Flycatchers arrive in Oregon?
Dusky Flycatchers arrive in Oregon in late April, peak in the second week of June (3.3% of checklists), and most are gone by mid July.
When do Dusky Flycatchers leave Oregon?
Most Dusky Flycatchers have left Oregon by mid July, when reports fall below half their usual rate. Stragglers are still reported until late July.
When is the best time to see a Dusky Flycatcher in Oregon?
The Dusky Flycatcher is reported most often in the second week of June, on about 3.3% of Oregon checklists.
Where in Oregon are Dusky Flycatchers seen most often?
By county, Grant County, Jefferson County, and Umatilla County have the highest peak reporting rates for the Dusky Flycatcher (counties with at least 200 checklists).