WhenToBird

Melanitta deglandi · Anatidae

When Do White-winged Scoters Arrive in Connecticut?

Adult White-winged Scoter
Photo: sprcrkwild, CC BY 4.0 via iNaturalist

White-winged Scoters are winter birds in Connecticut: they arrive in late October, peak in the second week of January (2.0% of checklists), and most are gone by mid March.

When to look

First arrivalsOct 22-31late October
Common byOct 22-31late October
PeakJan 8-14the second week of January
Most gone byMar 15-21mid March

Best: the second week of January. First arrivals late October; most are gone by mid March. Peak: on about 2.0% of Connecticut checklists.

  1. Janpeak season
  2. Febcommon
  3. Marcommon
  4. Apruncommon
  5. Mayrare
  6. Junnot usually seen
  7. Julrare
  8. Augrare
  9. Seprare
  10. Octcommon
  11. Novpeak season
  12. Decpeak season

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

0%1%2%3%Jan 1-7: 1.8% of 18950 checklistsJan 8-14: 1.9% of 13676 checklistsJan 15-21: 2.3% of 13377 checklistsJan 22-31: 1.5% of 17004 checklistsFeb 1-7: 1.4% of 10218 checklistsFeb 8-14: 1.1% of 11568 checklistsFeb 15-21: 0.6% of 15916 checklistsFeb 22-28: 0.8% of 11413 checklistsMar 1-7: 1.0% of 10754 checklistsMar 8-14: 0.8% of 12051 checklistsMar 15-21: 0.6% of 12616 checklistsMar 22-31: 0.8% of 17801 checklistsApr 1-7: 0.5% of 13186 checklistsApr 8-14: 0.4% of 14428 checklistsApr 15-21: 0.3% of 14738 checklistsApr 22-30: 0.1% of 21753 checklistsMay 1-7: 0.2% of 22494 checklistsMay 8-14: 0.1% of 23363 checklistsMay 15-21: 0.2% of 20219 checklistsMay 22-31: 0.1% of 20778 checklistsJun 1-7: 0.1% of 12234 checklistsJun 8-14: 0.1% of 12491 checklistsJun 15-21: 0% of 10856 checklistsJun 22-30: 0.1% of 11964 checklistsJul 1-7: 0.1% of 9437 checklistsJul 8-14: 0.1% of 8599 checklistsJul 15-21: 0.1% of 8252 checklistsJul 22-31: 0.3% of 11329 checklistsAug 1-7: 0.1% of 8116 checklistsAug 8-14: 0.3% of 8051 checklistsAug 15-21: 0.2% of 8502 checklistsAug 22-31: 0.1% of 13673 checklistsSep 1-7: 0.1% of 9873 checklistsSep 8-14: 0.1% of 9735 checklistsSep 15-21: 0% of 10120 checklistsSep 22-30: 0.1% of 12543 checklistsOct 1-7: 0.1% of 10735 checklistsOct 8-14: 0.3% of 10869 checklistsOct 15-21: 0.4% of 10436 checklistsOct 22-31: 1.0% of 13808 checklistsNov 1-7: 1.3% of 10507 checklistsNov 8-14: 1.8% of 9827 checklistsNov 15-21: 1.5% of 9904 checklistsNov 22-30: 1.7% of 13396 checklistsDec 1-7: 2.0% of 8974 checklistsDec 8-14: 1.6% of 9468 checklistsDec 15-21: 1.8% of 11614 checklistsDec 22-31: 2.0% of 16616 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 Connecticut 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 Connecticut

Best counties

Share of checklists at the peak
  1. New London CountyBest mid January · 1490 checklists that week, 65,205 in all4.7%
  2. Fairfield CountyBest mid December · 2800 checklists that week, 139,848 in all4.2%
  3. New Haven CountyBest the second week of January · 2708 checklists that week, 139,721 in all2.4%
  4. Tolland CountyBest early November · 711 checklists that week, 39,004 in all1.6%
  5. Middlesex CountyBest the second week of January · 776 checklists that week, 39,919 in all1.1%
  6. Litchfield CountyBest early November · 1023 checklists that week, 69,766 in all0.7%

Best spots

Share of checklists at the peak
  1. Shoal PointFairfield County, best mid December · 22 checklists that week, 312 in all69%
  2. Jennings BeachFairfield County, best late December · 21 checklists that week, 169 in all65%
  3. Osprey BeachNew London County, best late January · 24 checklists that week, 157 in all51%
  4. Burial Hill BeachFairfield County, best late November · 69 checklists that week, 1,335 in all32%
  5. Stonington PointNew London County, best late November · 37 checklists that week, 1,092 in all30%
  6. Point No PointFairfield County, best the second week of February · 39 checklists that week, 1,401 in all29%

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

Best time of day

In Connecticut, the White-winged Scoter is most often listed on checklists started between 11 am and 1 pm (0.9% of those checklists).

0%0.5%1%12 am: too few checklists (325) to judge1 am: too few checklists (367) to judge2 am: too few checklists (488) to judge3 am: too few checklists (792) to judge4 am: too few checklists (2722) to judge5 am: too few checklists (9489) to judge6 am: 0.5% of 33657 checklists7 am: 0.8% of 62964 checklists8 am: 0.8% of 70645 checklists9 am: 0.7% of 64870 checklists10 am: 0.8% of 58827 checklists11 am: 0.9% of 51689 checklists12 pm: 0.8% of 45288 checklists1 pm: 0.9% of 44765 checklists2 pm: 0.8% of 44173 checklists3 pm: 0.7% of 41979 checklists4 pm: 0.3% of 33219 checklists5 pm: 0.3% of 24828 checklists6 pm: 0.1% of 15856 checklists7 pm: too few checklists (8126) to judge8 pm: too few checklists (1994) to judge9 pm: too few checklists (533) to judge10 pm: too few checklists (349) to judge11 pm: too few checklists (286) 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
January1.8%1.9%2.3%1.5%
February1.4%1.1%0.6%0.8%
March1.0%0.8%0.6%0.8%
April0.5%0.4%0.3%0.1%
May0.2%0.1%0.2%0.1%
June0.1%0.1%0%0.1%
July0.1%0.1%0.1%0.3%
August0.1%0.3%0.2%0.1%
September0.1%0.1%0%0.1%
October0.1%0.3%0.4%1.0%
November1.3%1.8%1.5%1.7%
December2.0%1.6%1.8%2.0%

Neighboring states

  • Rhode Island: arrives mid September, 5 weeks earlier than Connecticut
  • Massachusetts: arrives the second week of September, 6 weeks earlier than Connecticut
  • New Jersey: arrives late October, in the same week than Connecticut
  • New York: arrives the second week of October, 2 weeks earlier than Connecticut

Common questions

When do White-winged Scoters arrive in Connecticut?
White-winged Scoters are winter birds in Connecticut: they arrive in late October, peak in the second week of January (2.0% of checklists), and most are gone by mid March.
When do White-winged Scoters leave Connecticut?
Most White-winged Scoters have left Connecticut by mid March, when reports fall below half their usual rate.
When is the best time to see a White-winged Scoter in Connecticut?
The White-winged Scoter is reported most often in the second week of January, on about 2.0% of Connecticut checklists.
Where in Connecticut are White-winged Scoters seen most often?
By county, New London County, Fairfield County, and New Haven County have the highest peak reporting rates for the White-winged Scoter (counties with at least 200 checklists).