WhenToBird

Spatula discors · Anatidae

When Do Blue-winged Teals Arrive in New Jersey?

Adult female Blue-winged Teal
Photo: Guy Babineau, CC BY 4.0 via iNaturalist

Blue-winged Teals are winter birds in New Jersey: they arrive in mid August, peak in early October (4.4% of checklists), and most are gone by mid November.

When to look

First arrivalsAug 15-21mid August
Common byAug 15-21mid August
PeakOct 1-7early October
Most gone byNov 15-21mid November

Best: early October. First arrivals mid August; most are gone by mid November. Peak: on about 4.4% of New Jersey checklists.

  1. Janrare
  2. Febrare
  3. Marcommon
  4. Aprpeak season
  5. Mayuncommon
  6. Junrare
  7. Julnot usually seen
  8. Augcommon
  9. Seppeak season
  10. Octpeak season
  11. Novcommon
  12. Decrare

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

0%2%4%6%Jan 1-7: 0.4% of 28167 checklistsJan 8-14: 0.1% of 20583 checklistsJan 15-21: 0.2% of 19739 checklistsJan 22-31: 0.2% of 24586 checklistsFeb 1-7: 0.2% of 17226 checklistsFeb 8-14: 0.3% of 19567 checklistsFeb 15-21: 0.1% of 26553 checklistsFeb 22-28: 0.2% of 19046 checklistsMar 1-7: 0.5% of 17969 checklistsMar 8-14: 1.1% of 18976 checklistsMar 15-21: 1.3% of 18581 checklistsMar 22-31: 2.5% of 27590 checklistsApr 1-7: 3.6% of 21202 checklistsApr 8-14: 3.9% of 23609 checklistsApr 15-21: 3.5% of 25056 checklistsApr 22-30: 2.0% of 36679 checklistsMay 1-7: 0.8% of 38378 checklistsMay 8-14: 0.7% of 44071 checklistsMay 15-21: 0.4% of 34076 checklistsMay 22-31: 0.2% of 32558 checklistsJun 1-7: 0.2% of 18049 checklistsJun 8-14: 0.3% of 15597 checklistsJun 15-21: 0.1% of 14894 checklistsJun 22-30: 0.1% of 17187 checklistsJul 1-7: 0.1% of 13406 checklistsJul 8-14: 0.1% of 12550 checklistsJul 15-21: 0.1% of 12358 checklistsJul 22-31: 0.1% of 18382 checklistsAug 1-7: 0.1% of 13689 checklistsAug 8-14: 0.3% of 14006 checklistsAug 15-21: 1.1% of 14483 checklistsAug 22-31: 1.6% of 23182 checklistsSep 1-7: 3.3% of 17984 checklistsSep 8-14: 3.8% of 18320 checklistsSep 15-21: 4.0% of 20491 checklistsSep 22-30: 4.7% of 26176 checklistsOct 1-7: 4.3% of 24112 checklistsOct 8-14: 4.2% of 24603 checklistsOct 15-21: 3.8% of 24549 checklistsOct 22-31: 2.6% of 26206 checklistsNov 1-7: 1.3% of 17469 checklistsNov 8-14: 1.0% of 15102 checklistsNov 15-21: 0.6% of 14958 checklistsNov 22-30: 0.4% of 19447 checklistsDec 1-7: 0.4% of 14017 checklistsDec 8-14: 0.3% of 14625 checklistsDec 15-21: 0.2% of 16937 checklistsDec 22-31: 0.2% of 26651 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 Jersey 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 Jersey

Best counties

Share of checklists at the peak
  1. Cape May CountyBest mid September · 5541 checklists that week, 189,832 in all11%
  2. Cumberland CountyBest the second week of April · 289 checklists that week, 13,927 in all9.1%
  3. Atlantic CountyBest early October · 506 checklists that week, 28,208 in all8.9%
  4. Sussex CountyBest the second week of April · 826 checklists that week, 30,305 in all7.6%
  5. Salem CountyBest the second week of April · 304 checklists that week, 9,658 in all6.3%
  6. Bergen CountyBest the second week of April · 1806 checklists that week, 73,457 in all5.2%

Best spots

Share of checklists at the peak
  1. Cape May Migratory Bird RefugeCape May County, best the second week of April · 235 checklists that week, 15,664 in all57%
  2. Wallkill River National Wildlife RefugeSussex County, best mid April · 46 checklists that week, 2,362 in all54%
  3. Whittingham Wildlife Management AreaSussex County, best mid April · 20 checklists that week, 176 in all50%
  4. Halls RunSalem County, best the second week of April · 25 checklists that week, 450 in all49%
  5. Manahawkin Wildlife Management AreaOcean County, best the second week of April · 44 checklists that week, 1,150 in all49%

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

Best time of day

In New Jersey, the Blue-winged Teal is most often listed on checklists started between 5 and 7 pm (1.7% of those checklists).

0%0.5%1%1.5%2%12 am: too few checklists (746) to judge1 am: too few checklists (640) to judge2 am: too few checklists (606) to judge3 am: too few checklists (755) to judge4 am: too few checklists (1681) to judge5 am: too few checklists (11258) to judge6 am: 1.2% of 50447 checklists7 am: 1.5% of 118312 checklists8 am: 1.4% of 123273 checklists9 am: 1.5% of 107783 checklists10 am: 1.5% of 97537 checklists11 am: 1.3% of 82427 checklists12 pm: 1.3% of 72581 checklists1 pm: 1.3% of 71478 checklists2 pm: 1.4% of 69994 checklists3 pm: 1.3% of 66822 checklists4 pm: 1.5% of 55950 checklists5 pm: 1.9% of 41360 checklists6 pm: 1.4% of 28122 checklists7 pm: too few checklists (14727) to judge8 pm: too few checklists (4257) to judge9 pm: too few checklists (1273) to judge10 pm: too few checklists (920) to judge11 pm: too few checklists (693) 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%0.1%0.2%0.2%
February0.2%0.3%0.1%0.2%
March0.5%1.1%1.3%2.5%
April3.6%3.9%3.5%2.0%
May0.8%0.7%0.4%0.2%
June0.2%0.3%0.1%0.1%
July0.1%0.1%0.1%0.1%
August0.1%0.3%1.1%1.6%
September3.3%3.8%4.0%4.7%
October4.3%4.2%3.8%2.6%
November1.3%1.0%0.6%0.4%
December0.4%0.3%0.2%0.2%

Neighboring states

  • Delaware: arrives early March, 22 weeks earlier than New Jersey
  • Connecticut: arrives the second week of March, 21 weeks earlier than New Jersey
  • Pennsylvania: arrives the second week of March, 21 weeks earlier than New Jersey
  • New York: arrives mid March, 20 weeks earlier than New Jersey

Common questions

When do Blue-winged Teals arrive in New Jersey?
Blue-winged Teals are winter birds in New Jersey: they arrive in mid August, peak in early October (4.4% of checklists), and most are gone by mid November.
When do Blue-winged Teals leave New Jersey?
Most Blue-winged Teals have left New Jersey by mid November, when reports fall below half their usual rate.
When is the best time to see a Blue-winged Teal in New Jersey?
The Blue-winged Teal is reported most often in early October, on about 4.4% of New Jersey checklists.
Where in New Jersey are Blue-winged Teals seen most often?
By county, Cape May County, Cumberland County, and Atlantic County have the highest peak reporting rates for the Blue-winged Teal (counties with at least 200 checklists).