WhenToBird

Anas crecca · Anatidae

When Do Green-winged Teals Arrive in New Mexico?

Adult Green-winged Teal
Photo: Mark, CC BY 4.0 via iNaturalist

Green-winged Teals are winter birds in New Mexico: the first arrive in the second week of August, they are common by late August, peak in the second week of March (11% of checklists), and most are gone by late April.

When to look

First arrivalsAug 8-14the second week of August
Common byAug 22-31late August
PeakMar 8-14the second week of March
Most gone byApr 22-30late April

Best: the second week of March. First arrivals the second week of August; most are gone by late April. Peak: on about 11% of New Mexico checklists.

  1. Jancommon
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Mayuncommon
  6. Junrare
  7. Julnot usually seen
  8. Auguncommon
  9. Sepcommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%5%10%15%Jan 1-7: 7.0% of 11827 checklistsJan 8-14: 7.1% of 9370 checklistsJan 15-21: 7.4% of 9561 checklistsJan 22-31: 7.0% of 12707 checklistsFeb 1-7: 7.8% of 9365 checklistsFeb 8-14: 7.5% of 10141 checklistsFeb 15-21: 8.2% of 12431 checklistsFeb 22-28: 10% of 9159 checklistsMar 1-7: 11% of 9348 checklistsMar 8-14: 11% of 9704 checklistsMar 15-21: 10% of 9896 checklistsMar 22-31: 10% of 14679 checklistsApr 1-7: 8.8% of 11145 checklistsApr 8-14: 6.3% of 11939 checklistsApr 15-21: 5.5% of 12885 checklistsApr 22-30: 3.8% of 17935 checklistsMay 1-7: 2.9% of 15202 checklistsMay 8-14: 3.0% of 16604 checklistsMay 15-21: 2.5% of 12720 checklistsMay 22-31: 1.6% of 16699 checklistsJun 1-7: 0.9% of 9889 checklistsJun 8-14: 0.5% of 9322 checklistsJun 15-21: 0.5% of 8341 checklistsJun 22-30: 0.2% of 10562 checklistsJul 1-7: 0.2% of 9036 checklistsJul 8-14: 0.1% of 8461 checklistsJul 15-21: 0.2% of 8585 checklistsJul 22-31: 0.2% of 11800 checklistsAug 1-7: 0.5% of 8289 checklistsAug 8-14: 1.4% of 8882 checklistsAug 15-21: 2.7% of 9136 checklistsAug 22-31: 3.3% of 12662 checklistsSep 1-7: 4.1% of 9936 checklistsSep 8-14: 5.1% of 9581 checklistsSep 15-21: 4.2% of 9355 checklistsSep 22-30: 4.6% of 12402 checklistsOct 1-7: 5.0% of 9467 checklistsOct 8-14: 5.0% of 10279 checklistsOct 15-21: 5.1% of 8990 checklistsOct 22-31: 5.6% of 11986 checklistsNov 1-7: 6.3% of 8461 checklistsNov 8-14: 7.1% of 8801 checklistsNov 15-21: 7.0% of 8616 checklistsNov 22-30: 7.0% of 11088 checklistsDec 1-7: 6.9% of 8444 checklistsDec 8-14: 6.5% of 8575 checklistsDec 15-21: 5.7% of 10958 checklistsDec 22-31: 6.0% of 14523 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 Mexico 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 Mexico

Best counties

Share of checklists at the peak
  1. Colfax CountyBest the second week of October · 277 checklists that week, 8,053 in all38%
  2. Chaves CountyBest the second week of February · 106 checklists that week, 5,298 in all28%
  3. Socorro CountyBest late March · 959 checklists that week, 33,508 in all27%
  4. Sierra CountyBest the second week of February · 313 checklists that week, 13,458 in all24%
  5. De Baca CountyBest late November · 22 checklists that week, 2,203 in all23%
  6. Curry CountyBest mid September · 110 checklists that week, 2,926 in all21%

Best spots

Share of checklists at the peak
  1. Lake Number FourteenColfax County, best mid October · 30 checklists that week, 245 in all87%
  2. Montano Southwest BosqueBernalillo County, best the second week of March · 176 checklists that week, 6,997 in all84%
  3. La Llorona ParkDona Ana County, best mid February · 31 checklists that week, 1,183 in all83%
  4. Bosque (north)Bernalillo County, best early March · 31 checklists that week, 1,846 in all78%
  5. Elephant Butte Lake State Park (Three Sisters Point)Sierra County, best mid February · 20 checklists that week, 180 in all78%

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

Best time of day

In New Mexico, the Green-winged Teal is most often listed on checklists started between 1 and 3 pm (6.6% of those checklists).

0%2%4%6%8%12 am: too few checklists (186) to judge1 am: too few checklists (180) to judge2 am: too few checklists (172) to judge3 am: too few checklists (183) to judge4 am: too few checklists (527) to judge5 am: too few checklists (4013) to judge6 am: 2.9% of 29677 checklists7 am: 3.8% of 71785 checklists8 am: 5.5% of 79208 checklists9 am: 5.1% of 61605 checklists10 am: 5.7% of 49588 checklists11 am: 5.8% of 38079 checklists12 pm: 6.1% of 31089 checklists1 pm: 6.5% of 27524 checklists2 pm: 6.6% of 26644 checklists3 pm: 6.0% of 26849 checklists4 pm: 5.4% of 25156 checklists5 pm: 4.4% of 19061 checklists6 pm: 3.5% of 15112 checklists7 pm: too few checklists (9040) to judge8 pm: too few checklists (2738) to judge9 pm: too few checklists (736) to judge10 pm: too few checklists (384) to judge11 pm: too few checklists (208) 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
January7.0%7.1%7.4%7.0%
February7.8%7.5%8.2%10%
March11%11%10%10%
April8.8%6.3%5.5%3.8%
May2.9%3.0%2.5%1.6%
June0.9%0.5%0.5%0.2%
July0.2%0.1%0.2%0.2%
August0.5%1.4%2.7%3.3%
September4.1%5.1%4.2%4.6%
October5.0%5.0%5.1%5.6%
November6.3%7.1%7.0%7.0%
December6.9%6.5%5.7%6.0%

Neighboring states

  • Arizona: arrives mid August, 1 week later than New Mexico
  • Colorado: arrives early August, 1 week earlier than New Mexico
  • Utah: arrives the second week of August, in the same week than New Mexico
  • Oklahoma: arrives early September, 3 weeks later than New Mexico

Common questions

When do Green-winged Teals arrive in New Mexico?
Green-winged Teals are winter birds in New Mexico: the first arrive in the second week of August, they are common by late August, peak in the second week of March (11% of checklists), and most are gone by late April.
When do Green-winged Teals leave New Mexico?
Most Green-winged Teals have left New Mexico by late April, when reports fall below half their usual rate. Stragglers are still reported until early June.
When is the best time to see a Green-winged Teal in New Mexico?
The Green-winged Teal is reported most often in the second week of March, on about 11% of New Mexico checklists.
Where in New Mexico are Green-winged Teals seen most often?
By county, Colfax County, Chaves County, and Socorro County have the highest peak reporting rates for the Green-winged Teal (counties with at least 200 checklists).