WhenToBird

Psaltriparus minimus · Aegithalidae

When Do Bushtits Arrive in Washington?

Adult male Bushtit
Photo: Tser, CC BY 4.0 via iNaturalist

The Bushtit is in Washington all year. It turns up on about 15% of checklists at its peak (early April) and on 6.8% in its quietest week (late January).

When to look

PresentAll year
Peak weekApr 1-7early April
Quietest weekJan 22-31late January

Best: early April. Here all year. Peak: on about 15% of Washington checklists.

  1. Jancommon
  2. Febcommon
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Juncommon
  7. Julcommon
  8. Augcommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%5%10%15%Jan 1-7: 6.9% of 41928 checklistsJan 8-14: 7.0% of 31152 checklistsJan 15-21: 6.9% of 31753 checklistsJan 22-31: 6.7% of 42530 checklistsFeb 1-7: 6.8% of 29739 checklistsFeb 8-14: 7.5% of 32746 checklistsFeb 15-21: 7.8% of 40328 checklistsFeb 22-28: 7.9% of 28432 checklistsMar 1-7: 9.0% of 30758 checklistsMar 8-14: 11% of 29368 checklistsMar 15-21: 13% of 32580 checklistsMar 22-31: 14% of 45614 checklistsApr 1-7: 15% of 33997 checklistsApr 8-14: 14% of 34729 checklistsApr 15-21: 13% of 38474 checklistsApr 22-30: 13% of 52185 checklistsMay 1-7: 13% of 44236 checklistsMay 8-14: 11% of 48708 checklistsMay 15-21: 11% of 41742 checklistsMay 22-31: 10% of 57082 checklistsJun 1-7: 9.3% of 39193 checklistsJun 8-14: 8.9% of 36042 checklistsJun 15-21: 9.3% of 34003 checklistsJun 22-30: 9.2% of 39711 checklistsJul 1-7: 10% of 31949 checklistsJul 8-14: 10% of 29086 checklistsJul 15-21: 10% of 28045 checklistsJul 22-31: 9.8% of 38275 checklistsAug 1-7: 9.1% of 28846 checklistsAug 8-14: 8.4% of 28036 checklistsAug 15-21: 8.3% of 27614 checklistsAug 22-31: 8.1% of 40356 checklistsSep 1-7: 7.7% of 31214 checklistsSep 8-14: 7.4% of 27795 checklistsSep 15-21: 7.4% of 29677 checklistsSep 22-30: 7.4% of 35241 checklistsOct 1-7: 7.1% of 28605 checklistsOct 8-14: 7.7% of 28655 checklistsOct 15-21: 8.0% of 24643 checklistsOct 22-31: 8.2% of 34874 checklistsNov 1-7: 8.3% of 25658 checklistsNov 8-14: 8.5% of 25700 checklistsNov 15-21: 8.9% of 24331 checklistsNov 22-30: 8.7% of 32784 checklistsDec 1-7: 8.2% of 24099 checklistsDec 8-14: 8.2% of 23339 checklistsDec 15-21: 7.8% of 27666 checklistsDec 22-31: 8.1% of 42130 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 Washington 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 Washington

Best counties

Share of checklists at the peak
  1. King CountyBest early April · 8869 checklists that week, 390,864 in all29%
  2. Clark CountyBest early April · 1241 checklists that week, 53,250 in all25%
  3. Pierce CountyBest early April · 1973 checklists that week, 92,224 in all19%
  4. Thurston CountyBest the second week of April · 1412 checklists that week, 68,352 in all19%
  5. Snohomish CountyBest late March · 3572 checklists that week, 131,467 in all18%
  6. Lewis CountyBest late March · 387 checklists that week, 12,910 in all15%

Best spots

Share of checklists at the peak
  1. Jim Ellis Freeway ParkKing County, best early May · 23 checklists that week, 355 in all89%
  2. Carillon WoodsKing County, best late April · 46 checklists that week, 273 in all85%
  3. North Seattle College Woods and WetlandKing County, best early April · 57 checklists that week, 1,795 in all82%
  4. Jefferson ParkKing County, best mid April · 24 checklists that week, 888 in all73%
  5. Roxbury HeightsKing County, best late March · 22 checklists that week, 405 in all73%

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

Best time of day

In Washington, the Bushtit is most often listed on checklists started between 6 and 8 am (13% of those checklists).

0%5%10%15%12 am: too few checklists (796) to judge1 am: too few checklists (776) to judge2 am: too few checklists (709) to judge3 am: too few checklists (901) to judge4 am: too few checklists (3221) to judge5 am: too few checklists (16576) to judge6 am: 14% of 56744 checklists7 am: 13% of 133294 checklists8 am: 12% of 184196 checklists9 am: 11% of 186303 checklists10 am: 9.3% of 177063 checklists11 am: 8.5% of 154936 checklists12 pm: 8.0% of 138061 checklists1 pm: 7.7% of 127449 checklists2 pm: 7.6% of 121511 checklists3 pm: 8.0% of 107793 checklists4 pm: 8.3% of 82862 checklists5 pm: 8.7% of 57183 checklists6 pm: 8.5% of 39886 checklists7 pm: too few checklists (26969) to judge8 pm: too few checklists (12427) to judge9 pm: too few checklists (3658) to judge10 pm: too few checklists (1500) to judge11 pm: too few checklists (834) 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
January6.9%7.0%6.9%6.7%
February6.8%7.5%7.8%7.9%
March9.0%11%13%14%
April15%14%13%13%
May13%11%11%10%
June9.3%8.9%9.3%9.2%
July10%10%10%9.8%
August9.1%8.4%8.3%8.1%
September7.7%7.4%7.4%7.4%
October7.1%7.7%8.0%8.2%
November8.3%8.5%8.9%8.7%
December8.2%8.2%7.8%8.1%

Neighboring states

  • Oregon: year-round, peaks the second week of April
  • Nevada: year-round, peaks late May
  • Utah: winter visitor, peaks late October
  • California: year-round, peaks late April

Common questions

When do Bushtits arrive in Washington?
The Bushtit is in Washington all year. It turns up on about 15% of checklists at its peak (early April) and on 6.8% in its quietest week (late January).
When do Bushtits leave Washington?
The Bushtit does not leave Washington: it is reported all year, from 6.8% of checklists in late January to 15% in early April.
When is the best time to see a Bushtit in Washington?
The Bushtit is reported most often in early April, on about 15% of Washington checklists.
Where in Washington are Bushtits seen most often?
By county, King County, Clark County, and Pierce County have the highest peak reporting rates for the Bushtit (counties with at least 200 checklists).