WhenToBird

Tringa flavipes · Scolopacidae

When Do Lesser Yellowlegses Arrive in New York?

Adult Lesser Yellowlegs
Photo: John Rosford, CC BY 4.0 via iNaturalist

Lesser Yellowlegses reach New York in early July, are common by the second week of July, peak in mid August (6.9% of checklists), and most are gone by mid October.

When to look

First arrivalsJul 1-7early July
Common byJul 8-14the second week of July
PeakAug 15-21mid August
Most gone byOct 15-21mid October

Best: mid August. First arrivals early July; most are gone by mid October. Peak: on about 6.9% of New York checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Apruncommon
  5. Mayuncommon
  6. Junrare
  7. Julcommon
  8. Augpeak season
  9. Seppeak season
  10. Octuncommon
  11. Novrare
  12. Decnot usually seen

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

0%2%4%6%8%Jan 1-7: 0.1% of 66410 checklistsJan 8-14: 0.1% of 49310 checklistsJan 15-21: 0% of 49919 checklistsJan 22-31: 0.1% of 62513 checklistsFeb 1-7: 0.1% of 43526 checklistsFeb 8-14: 0% of 49753 checklistsFeb 15-21: 0% of 65147 checklistsFeb 22-28: 0.1% of 50173 checklistsMar 1-7: 0.1% of 50325 checklistsMar 8-14: 0.1% of 55371 checklistsMar 15-21: 0.1% of 56293 checklistsMar 22-31: 0.2% of 82677 checklistsApr 1-7: 0.4% of 65295 checklistsApr 8-14: 0.6% of 73080 checklistsApr 15-21: 1.2% of 73857 checklistsApr 22-30: 2.1% of 106093 checklistsMay 1-7: 2.8% of 102772 checklistsMay 8-14: 2.5% of 110051 checklistsMay 15-21: 1.6% of 94797 checklistsMay 22-31: 0.6% of 101272 checklistsJun 1-7: 0.1% of 59471 checklistsJun 8-14: 0.1% of 55497 checklistsJun 15-21: 0.1% of 51761 checklistsJun 22-30: 0.3% of 59219 checklistsJul 1-7: 0.9% of 48226 checklistsJul 8-14: 2.3% of 42315 checklistsJul 15-21: 3.5% of 40637 checklistsJul 22-31: 4.3% of 57183 checklistsAug 1-7: 5.5% of 40461 checklistsAug 8-14: 6.7% of 39880 checklistsAug 15-21: 7.4% of 41146 checklistsAug 22-31: 6.6% of 63381 checklistsSep 1-7: 6.1% of 48640 checklistsSep 8-14: 4.1% of 47882 checklistsSep 15-21: 3.5% of 49063 checklistsSep 22-30: 3.2% of 57906 checklistsOct 1-7: 2.6% of 48447 checklistsOct 8-14: 2.0% of 51901 checklistsOct 15-21: 1.7% of 46717 checklistsOct 22-31: 0.9% of 61992 checklistsNov 1-7: 0.4% of 44593 checklistsNov 8-14: 0.1% of 42566 checklistsNov 15-21: 0.1% of 39675 checklistsNov 22-30: 0.1% of 51197 checklistsDec 1-7: 0.1% of 36567 checklistsDec 8-14: 0.1% of 37254 checklistsDec 15-21: 0.1% of 43754 checklistsDec 22-31: 0.1% 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. Seneca CountyBest late August · 1382 checklists that week, 47,387 in all37%
  2. Queens CountyBest the second week of August · 1254 checklists that week, 76,201 in all36%
  3. Genesee CountyBest late August · 445 checklists that week, 17,726 in all25%
  4. Wayne CountyBest late August · 985 checklists that week, 37,738 in all18%
  5. Niagara CountyBest mid August · 373 checklists that week, 28,936 in all17%
  6. Jefferson CountyBest mid August · 356 checklists that week, 26,171 in all15%

Best spots

Share of checklists at the peak
  1. East Pond (Grassy Bay)Queens County, best the second week of August · 67 checklists that week, 794 in all95%
  2. Northern Montezuma Wma (Crusoe Creek)Wayne County, best mid July · 30 checklists that week, 447 in all92%
  3. West Pond (The Raut (historical))Queens County, best late August · 152 checklists that week, 1,547 in all92%
  4. East PondQueens County, best the second week of August · 89 checklists that week, 2,028 in all91%
  5. Oak Orchard WmaGenesee County, best late August · 22 checklists that week, 209 in all89%
  6. Rockland State Psychiatric CenterRockland County, best the second week of August · 23 checklists that week, 499 in all88%

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

Best time of day

In New York, the Lesser Yellowlegs is most often listed on checklists started between 5 and 7 pm (1.9% of those checklists).

0%0.5%1%1.5%2%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: 1.9% of 124869 checklists7 am: 1.4% of 298506 checklists8 am: 1.4% of 337334 checklists9 am: 1.6% of 307787 checklists10 am: 1.6% of 270801 checklists11 am: 1.5% of 233238 checklists12 pm: 1.4% of 213830 checklists1 pm: 1.4% of 193321 checklists2 pm: 1.4% of 180741 checklists3 pm: 1.4% of 170348 checklists4 pm: 1.7% of 147224 checklists5 pm: 1.8% 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
January0.1%0.1%0%0.1%
February0.1%0%0%0.1%
March0.1%0.1%0.1%0.2%
April0.4%0.6%1.2%2.1%
May2.8%2.5%1.6%0.6%
June0.1%0.1%0.1%0.3%
July0.9%2.3%3.5%4.3%
August5.5%6.7%7.4%6.6%
September6.1%4.1%3.5%3.2%
October2.6%2.0%1.7%0.9%
November0.4%0.1%0.1%0.1%
December0.1%0.1%0.1%0.1%

Neighboring states

  • Connecticut: arrives the second week of July, 1 week later than New York
  • New Jersey: arrives early July, in the same week than New York
  • Pennsylvania: arrives mid July, 2 weeks later than New York
  • Vermont: arrives late July, 3 weeks later than New York

Common questions

When do Lesser Yellowlegses arrive in New York?
Lesser Yellowlegses reach New York in early July, are common by the second week of July, peak in mid August (6.9% of checklists), and most are gone by mid October.
When do Lesser Yellowlegses leave New York?
Most Lesser Yellowlegses have left New York by mid October, when reports fall below half their usual rate.
When is the best time to see a Lesser Yellowlegs in New York?
The Lesser Yellowlegs is reported most often in mid August, on about 6.9% of New York checklists.
Where in New York are Lesser Yellowlegses seen most often?
By county, Seneca County, Queens County, and Genesee County have the highest peak reporting rates for the Lesser Yellowlegs (counties with at least 200 checklists).