WhenToBird

Gavia immer · Gaviidae

When Do Common Loons Arrive in New York?

Adult Common Loon
Photo: Hungry-Sarracenia Photo, CC BY 4.0 via iNaturalist

Common Loons are winter birds in New York: the first arrive in early October, they are common by mid October, peak in mid November (7.3% of checklists), and most are gone by early May.

When to look

First arrivalsOct 1-7early October
Common byOct 15-21mid October
PeakNov 15-21mid November
Most gone byMay 1-7early May

Best: mid November. First arrivals early October; most are gone by early May. Peak: on about 7.3% of New York checklists.

  1. Janpeak season
  2. Febcommon
  3. Marcommon
  4. Aprpeak season
  5. Maycommon
  6. Jununcommon
  7. Juluncommon
  8. Auguncommon
  9. Sepuncommon
  10. Octcommon
  11. Novpeak season
  12. Decpeak season

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

0%2%4%6%8%Jan 1-7: 5.5% of 66410 checklistsJan 8-14: 5.7% of 49310 checklistsJan 15-21: 6.0% of 49919 checklistsJan 22-31: 5.5% of 62513 checklistsFeb 1-7: 4.9% of 43526 checklistsFeb 8-14: 4.5% of 49753 checklistsFeb 15-21: 3.6% of 65147 checklistsFeb 22-28: 4.0% of 50173 checklistsMar 1-7: 3.2% of 50325 checklistsMar 8-14: 2.6% of 55371 checklistsMar 15-21: 2.7% of 56293 checklistsMar 22-31: 3.8% of 82677 checklistsApr 1-7: 5.7% of 65295 checklistsApr 8-14: 6.7% of 73080 checklistsApr 15-21: 6.6% of 73857 checklistsApr 22-30: 4.9% of 106093 checklistsMay 1-7: 3.5% of 102772 checklistsMay 8-14: 2.4% of 110051 checklistsMay 15-21: 2.0% of 94797 checklistsMay 22-31: 1.9% of 101272 checklistsJun 1-7: 1.8% of 59471 checklistsJun 8-14: 1.5% of 55497 checklistsJun 15-21: 1.6% of 51761 checklistsJun 22-30: 1.5% of 59219 checklistsJul 1-7: 2.1% of 48226 checklistsJul 8-14: 2.1% of 42315 checklistsJul 15-21: 2.0% of 40637 checklistsJul 22-31: 1.9% of 57183 checklistsAug 1-7: 2.0% of 40461 checklistsAug 8-14: 2.0% of 39880 checklistsAug 15-21: 1.8% of 41146 checklistsAug 22-31: 1.6% of 63381 checklistsSep 1-7: 1.4% of 48640 checklistsSep 8-14: 1.3% of 47882 checklistsSep 15-21: 1.2% of 49063 checklistsSep 22-30: 1.4% of 57906 checklistsOct 1-7: 1.7% of 48447 checklistsOct 8-14: 2.2% of 51901 checklistsOct 15-21: 2.9% of 46717 checklistsOct 22-31: 4.5% of 61992 checklistsNov 1-7: 6.4% of 44593 checklistsNov 8-14: 7.5% of 42566 checklistsNov 15-21: 7.2% of 39675 checklistsNov 22-30: 7.4% of 51197 checklistsDec 1-7: 6.4% of 36567 checklistsDec 8-14: 5.0% of 37254 checklistsDec 15-21: 5.2% of 43754 checklistsDec 22-31: 6.2% of 62470 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 New York 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 New York

Best counties

Share of checklists at the peak
  1. Warren CountyBest early November · 108 checklists that week, 12,066 in all37%
  2. Hamilton CountyBest the second week of September · 271 checklists that week, 13,964 in all29%
  3. Clinton CountyBest early November · 128 checklists that week, 8,764 in all27%
  4. Franklin CountyBest early September · 426 checklists that week, 20,717 in all25%
  5. Bronx CountyBest late January · 612 checklists that week, 24,489 in all24%
  6. Nassau CountyBest late January · 2497 checklists that week, 95,019 in all24%

Best spots

Share of checklists at the peak
  1. Sammys Town BeachSuffolk County, best late December · 29 checklists that week, 1,089 in all100%
  2. Coney Island Beach & Boardwalk (Coney Island Creek)Kings County, best mid March · 21 checklists that week, 650 in all96%
  3. Glass Factory BaySeneca County, best late April · 35 checklists that week, 244 in all96%
  4. Hope PointOntario County, best early November · 21 checklists that week, 306 in all96%
  5. Coney Island Beach & Boardwalk (Brighton Beach)Kings County, best late January · 22 checklists that week, 177 in all93%

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

Best time of day

In New York, the Common Loon is most often listed on checklists started between 6 and 8 am (4.1% of those checklists).

0%2%4%6%12 am: too few checklists (1146) to judge1 am: too few checklists (1055) to judge2 am: too few checklists (1121) to judge3 am: too few checklists (1353) to judge4 am: too few checklists (4785) to judge5 am: too few checklists (32052) to judge6 am: 4.4% of 124869 checklists7 am: 3.9% of 298506 checklists8 am: 3.6% of 337334 checklists9 am: 3.9% of 307787 checklists10 am: 4.0% of 270801 checklists11 am: 4.1% of 233238 checklists12 pm: 3.9% of 213830 checklists1 pm: 3.9% of 193321 checklists2 pm: 3.7% of 180741 checklists3 pm: 3.3% of 170348 checklists4 pm: 2.7% of 147224 checklists5 pm: 2.0% of 111962 checklists6 pm: 1.9% of 78261 checklists7 pm: too few checklists (44425) to judge8 pm: too few checklists (15648) to judge9 pm: too few checklists (4795) to judge10 pm: too few checklists (2454) to judge11 pm: too few checklists (1378) 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
January5.5%5.7%6.0%5.5%
February4.9%4.5%3.6%4.0%
March3.2%2.6%2.7%3.8%
April5.7%6.7%6.6%4.9%
May3.5%2.4%2.0%1.9%
June1.8%1.5%1.6%1.5%
July2.1%2.1%2.0%1.9%
August2.0%2.0%1.8%1.6%
September1.4%1.3%1.2%1.4%
October1.7%2.2%2.9%4.5%
November6.4%7.5%7.2%7.4%
December6.4%5.0%5.2%6.2%

Neighboring states

  • Connecticut: arrives mid October, 2 weeks later than New York
  • New Jersey: arrives early October, in the same week than New York
  • Pennsylvania: arrives mid March, 22 weeks later than New York
  • Vermont: arrives early April, 24 weeks earlier than New York

Common questions

When do Common Loons arrive in New York?
Common Loons are winter birds in New York: the first arrive in early October, they are common by mid October, peak in mid November (7.3% of checklists), and most are gone by early May.
When do Common Loons leave New York?
Most Common Loons have left New York by early May, when reports fall below half their usual rate. Stragglers are still reported until the second week of June.
When is the best time to see a Common Loon in New York?
The Common Loon is reported most often in mid November, on about 7.3% of New York checklists.
Where in New York are Common Loons seen most often?
By county, Warren County, Hamilton County, and Clinton County have the highest peak reporting rates for the Common Loon (counties with at least 200 checklists).