WhenToBird

Quiscalus major · Icteridae

When Do Boat-tailed Grackles Arrive in Virginia?

Adult female Boat-tailed Grackle
Photo: Josiah Londerée, CC BY 4.0 via iNaturalist

Boat-tailed Grackles arrive in Virginia in late December, peak in late May (2.2% of checklists), and most are gone by early December.

When to look

First arrivalsDec 22-31late December
Common byDec 22-31late December
PeakMay 22-31late May
Most gone byDec 1-7early December

Best: late May. First arrivals late December; most are gone by early December. Peak: on about 2.2% of Virginia checklists.

  1. Jancommon
  2. Febcommon
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepcommon
  10. Octpeak season
  11. Novcommon
  12. Deccommon

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

0%1%2%3%Jan 1-7: 1.0% of 32817 checklistsJan 8-14: 0.9% of 25111 checklistsJan 15-21: 1.1% of 25510 checklistsJan 22-31: 1.1% of 34492 checklistsFeb 1-7: 1.2% of 24950 checklistsFeb 8-14: 1.2% of 28224 checklistsFeb 15-21: 1.0% of 43578 checklistsFeb 22-28: 1.4% of 26467 checklistsMar 1-7: 1.3% of 25851 checklistsMar 8-14: 1.3% of 25901 checklistsMar 15-21: 1.6% of 26747 checklistsMar 22-31: 1.6% of 40819 checklistsApr 1-7: 1.8% of 31351 checklistsApr 8-14: 1.6% of 33239 checklistsApr 15-21: 1.9% of 37284 checklistsApr 22-30: 1.6% of 54364 checklistsMay 1-7: 2.0% of 47698 checklistsMay 8-14: 2.1% of 46174 checklistsMay 15-21: 2.2% of 36444 checklistsMay 22-31: 2.2% of 43203 checklistsJun 1-7: 2.1% of 28503 checklistsJun 8-14: 1.9% of 25485 checklistsJun 15-21: 1.6% of 23728 checklistsJun 22-30: 1.4% of 28785 checklistsJul 1-7: 1.8% of 22294 checklistsJul 8-14: 1.6% of 20481 checklistsJul 15-21: 1.6% of 18914 checklistsJul 22-31: 1.3% of 26976 checklistsAug 1-7: 1.2% of 19555 checklistsAug 8-14: 1.4% of 18744 checklistsAug 15-21: 1.0% of 18721 checklistsAug 22-31: 1.0% of 28763 checklistsSep 1-7: 1.1% of 23594 checklistsSep 8-14: 1.2% of 22581 checklistsSep 15-21: 1.1% of 23036 checklistsSep 22-30: 1.4% of 29687 checklistsOct 1-7: 1.9% of 24321 checklistsOct 8-14: 1.7% of 23946 checklistsOct 15-21: 1.8% of 22191 checklistsOct 22-31: 1.5% of 30161 checklistsNov 1-7: 1.4% of 21431 checklistsNov 8-14: 1.5% of 22758 checklistsNov 15-21: 1.0% of 19988 checklistsNov 22-30: 1.2% of 27665 checklistsDec 1-7: 0.8% of 19324 checklistsDec 8-14: 0.6% of 20316 checklistsDec 15-21: 0.3% of 25675 checklistsDec 22-31: 0.8% 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.

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Where in Virginia

Best counties

Share of checklists at the peak
  1. Poquoson CountyBest the second week of June · 41 checklists that week, 2,669 in all60%
  2. Accomack CountyBest early June · 708 checklists that week, 43,278 in all26%
  3. Virginia Beach CountyBest early June · 1063 checklists that week, 70,485 in all20%
  4. Newport News CountyBest early June · 205 checklists that week, 11,661 in all18%
  5. Mathews CountyBest the second week of June · 46 checklists that week, 3,594 in all17%
  6. Hampton CountyBest early June · 153 checklists that week, 9,881 in all11%

Best spots

Share of checklists at the peak
  1. Back CovePoquoson County, best late June · 20 checklists that week, 1,001 in all81%
  2. BeachVirginia Beach County, best early June · 53 checklists that week, 2,842 in all81%
  3. Fore Landing CreekPoquoson County, best late May · 25 checklists that week, 525 in all76%
  4. Princess Anne Wildlife Management AreaVirginia Beach County, best late May · 28 checklists that week, 878 in all70%

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

Best time of day

In Virginia, the Boat-tailed Grackle is most often listed on checklists started between 6 and 8 am (2.1% of those checklists).

0%1%2%3%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: 3.0% of 64788 checklists7 am: 1.8% of 169128 checklists8 am: 1.3% of 180748 checklists9 am: 1.3% of 153462 checklists10 am: 1.3% of 128966 checklists11 am: 1.3% of 104204 checklists12 pm: 1.3% of 91604 checklists1 pm: 1.5% of 85547 checklists2 pm: 1.4% of 82355 checklists3 pm: 1.3% of 82265 checklists4 pm: 1.3% of 76714 checklists5 pm: 1.3% of 56782 checklists6 pm: 1.1% 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
January1.0%0.9%1.1%1.1%
February1.2%1.2%1.0%1.4%
March1.3%1.3%1.6%1.6%
April1.8%1.6%1.9%1.6%
May2.0%2.1%2.2%2.2%
June2.1%1.9%1.6%1.4%
July1.8%1.6%1.6%1.3%
August1.2%1.4%1.0%1.0%
September1.1%1.2%1.1%1.4%
October1.9%1.7%1.8%1.5%
November1.4%1.5%1.0%1.2%
December0.8%0.6%0.3%0.8%

Neighboring states

  • Maryland: arrives early March, 9 weeks later than Virginia
  • Delaware: arrives mid September, 13 weeks earlier than Virginia
  • North Carolina: year-round, peaks mid October
  • New Jersey: arrives the second week of December, 2 weeks earlier than Virginia

Common questions

When do Boat-tailed Grackles arrive in Virginia?
Boat-tailed Grackles arrive in Virginia in late December, peak in late May (2.2% of checklists), and most are gone by early December.
When do Boat-tailed Grackles leave Virginia?
Most Boat-tailed Grackles have left Virginia by early December, when reports fall below half their usual rate.
When is the best time to see a Boat-tailed Grackle in Virginia?
The Boat-tailed Grackle is reported most often in late May, on about 2.2% of Virginia checklists.
Where in Virginia are Boat-tailed Grackles seen most often?
By county, Poquoson County, Accomack County, and Virginia Beach County have the highest peak reporting rates for the Boat-tailed Grackle (counties with at least 200 checklists).