WhenToBird

Tachycineta bicolor · Hirundinidae

When Do Tree Swallows Arrive in Virginia?

Adult Tree Swallow
Photo: Carter Dorscht, CC0 1.0 via iNaturalist

Tree Swallows reach Virginia in late February, are common by the second week of March, peak in late April (23% of checklists), and most are gone by mid October.

When to look

First arrivalsFeb 22-28late February
Common byMar 8-14the second week of March
PeakApr 22-30late April
Most gone byOct 15-21mid October

Best: late April. First arrivals late February; most are gone by mid October. Peak: on about 23% of Virginia checklists.

  1. Jannot usually seen
  2. Febrare
  3. Marcommon
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julcommon
  8. Auguncommon
  9. Sepuncommon
  10. Octuncommon
  11. Novuncommon
  12. Decnot usually seen

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

0%10%20%30%Jan 1-7: 0.4% of 32817 checklistsJan 8-14: 0.5% of 25111 checklistsJan 15-21: 0.4% of 25510 checklistsJan 22-31: 0.4% of 34492 checklistsFeb 1-7: 0.4% of 24950 checklistsFeb 8-14: 0.5% of 28224 checklistsFeb 15-21: 0.7% of 43578 checklistsFeb 22-28: 2.4% of 26467 checklistsMar 1-7: 4.9% of 25851 checklistsMar 8-14: 8.8% of 25901 checklistsMar 15-21: 13% of 26747 checklistsMar 22-31: 18% of 40819 checklistsApr 1-7: 20% of 31351 checklistsApr 8-14: 22% of 33239 checklistsApr 15-21: 23% of 37284 checklistsApr 22-30: 24% of 54364 checklistsMay 1-7: 22% of 47698 checklistsMay 8-14: 22% of 46174 checklistsMay 15-21: 22% of 36444 checklistsMay 22-31: 21% of 43203 checklistsJun 1-7: 19% of 28503 checklistsJun 8-14: 19% of 25485 checklistsJun 15-21: 17% of 23728 checklistsJun 22-30: 14% of 28785 checklistsJul 1-7: 11% of 22294 checklistsJul 8-14: 10% of 20481 checklistsJul 15-21: 8.5% of 18914 checklistsJul 22-31: 7.9% of 26976 checklistsAug 1-7: 8.0% of 19555 checklistsAug 8-14: 7.6% of 18744 checklistsAug 15-21: 7.4% of 18721 checklistsAug 22-31: 6.1% of 28763 checklistsSep 1-7: 5.3% of 23594 checklistsSep 8-14: 5.0% of 22581 checklistsSep 15-21: 5.4% of 23036 checklistsSep 22-30: 6.7% of 29687 checklistsOct 1-7: 7.3% of 24321 checklistsOct 8-14: 7.3% of 23946 checklistsOct 15-21: 7.8% of 22191 checklistsOct 22-31: 5.6% of 30161 checklistsNov 1-7: 3.7% of 21431 checklistsNov 8-14: 3.7% of 22758 checklistsNov 15-21: 1.4% of 19988 checklistsNov 22-30: 1.1% of 27665 checklistsDec 1-7: 0.8% of 19324 checklistsDec 8-14: 0.5% of 20316 checklistsDec 15-21: 0.3% of 25675 checklistsDec 22-31: 0.4% of 38677 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 Virginia 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.

Embed this map on your site

Where in Virginia

Best counties

Share of checklists at the peak
  1. Hopewell CountyBest early June · 51 checklists that week, 3,116 in all66%
  2. Clarke CountyBest late April · 259 checklists that week, 8,388 in all63%
  3. Danville CountyBest the second week of April · 37 checklists that week, 1,494 in all63%
  4. Staunton CountyBest mid June · 56 checklists that week, 4,717 in all56%
  5. Buchanan CountyBest early May · 50 checklists that week, 1,612 in all54%
  6. King William CountyBest the second week of August · 51 checklists that week, 2,070 in all51%

Best spots

Share of checklists at the peak
  1. Meadowood Recreation AreaFairfax County, best late May · 24 checklists that week, 898 in all100%
  2. Frying Pan City ParkFairfax County, best the second week of June · 28 checklists that week, 2,006 in all97%
  3. Blue Ridge Center for Env StewardshipLoudoun County, best late May · 57 checklists that week, 651 in all95%
  4. Blandy Experimental StationClarke County, best the second week of June · 68 checklists that week, 4,226 in all95%

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

Best time of day

In Virginia, the Tree Swallow is most often listed on checklists started between 6 and 8 am (14% of those checklists).

0%5%10%15%20%12 am: too few checklists (485) to judge1 am: too few checklists (488) to judge2 am: too few checklists (423) to judge3 am: too few checklists (565) to judge4 am: too few checklists (1410) to judge5 am: too few checklists (10265) to judge6 am: 15% of 64788 checklists7 am: 13% of 169128 checklists8 am: 12% of 180748 checklists9 am: 11% of 153462 checklists10 am: 10% of 128966 checklists11 am: 9.1% of 104204 checklists12 pm: 8.0% of 91604 checklists1 pm: 7.7% of 85547 checklists2 pm: 7.2% of 82355 checklists3 pm: 6.9% of 82265 checklists4 pm: 7.1% of 76714 checklists5 pm: 8.9% of 56782 checklists6 pm: 10% of 40131 checklists7 pm: too few checklists (24290) to judge8 pm: too few checklists (7744) to judge9 pm: too few checklists (2383) to judge10 pm: too few checklists (1122) to judge11 pm: too few checklists (651) 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
January0.4%0.5%0.4%0.4%
February0.4%0.5%0.7%2.4%
March4.9%8.8%13%18%
April20%22%23%24%
May22%22%22%21%
June19%19%17%14%
July11%10%8.5%7.9%
August8.0%7.6%7.4%6.1%
September5.3%5.0%5.4%6.7%
October7.3%7.3%7.8%5.6%
November3.7%3.7%1.4%1.1%
December0.8%0.5%0.3%0.4%

Neighboring states

  • District of Columbia: arrives early March, 1 week later than Virginia
  • Maryland: arrives late February, in the same week than Virginia
  • West Virginia: arrives early March, 1 week later than Virginia
  • Delaware: arrives early March, 1 week later than Virginia

Common questions

When do Tree Swallows arrive in Virginia?
Tree Swallows reach Virginia in late February, are common by the second week of March, peak in late April (23% of checklists), and most are gone by mid October.
When do Tree Swallows leave Virginia?
Most Tree Swallows have left Virginia by mid October, when reports fall below half their usual rate. Stragglers are still reported until mid November.
When is the best time to see a Tree Swallow in Virginia?
The Tree Swallow is reported most often in late April, on about 23% of Virginia checklists.
Where in Virginia are Tree Swallows seen most often?
By county, Hopewell County, Clarke County, and Danville County have the highest peak reporting rates for the Tree Swallow (counties with at least 200 checklists).