WhenToBird

Fulica americana · Rallidae

When Do American Coots Arrive in New Mexico?

Adult American Coot
Photo: Daughter Dad, CC BY 4.0 via iNaturalist

American Coots are in New Mexico all year, but most are here in winter: numbers build from the second week of October, peak in mid November (17% of checklists), and fall back by late April. In the quietest week (early July) they are still on about 3.2% of checklists.

When to look

Numbers buildOct 8-14the second week of October
PeakNov 15-21mid November
Fall back byApr 22-30late April
FewestJul 1-7early July

Best: mid November. Here all year; numbers build from the second week of October and fall back by late April. Peak: on about 17% of New Mexico checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Maycommon
  6. Jununcommon
  7. Juluncommon
  8. Auguncommon
  9. Sepcommon
  10. Octpeak season
  11. Novpeak season
  12. Decpeak season

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

0%5%10%15%20%Jan 1-7: 15% of 11827 checklistsJan 8-14: 15% of 9370 checklistsJan 15-21: 14% of 9561 checklistsJan 22-31: 14% of 12707 checklistsFeb 1-7: 13% of 9365 checklistsFeb 8-14: 13% of 10141 checklistsFeb 15-21: 14% of 12431 checklistsFeb 22-28: 15% of 9159 checklistsMar 1-7: 15% of 9348 checklistsMar 8-14: 15% of 9704 checklistsMar 15-21: 15% of 9896 checklistsMar 22-31: 15% of 14679 checklistsApr 1-7: 14% of 11145 checklistsApr 8-14: 14% of 11939 checklistsApr 15-21: 13% of 12885 checklistsApr 22-30: 11% of 17935 checklistsMay 1-7: 9.3% of 15202 checklistsMay 8-14: 8.5% of 16604 checklistsMay 15-21: 7.5% of 12720 checklistsMay 22-31: 6.7% of 16699 checklistsJun 1-7: 5.1% of 9889 checklistsJun 8-14: 4.4% of 9322 checklistsJun 15-21: 3.5% of 8341 checklistsJun 22-30: 3.2% of 10562 checklistsJul 1-7: 3.3% of 9036 checklistsJul 8-14: 2.9% of 8461 checklistsJul 15-21: 3.7% of 8585 checklistsJul 22-31: 4.2% of 11800 checklistsAug 1-7: 4.2% of 8289 checklistsAug 8-14: 4.7% of 8882 checklistsAug 15-21: 5.3% of 9136 checklistsAug 22-31: 5.7% of 12662 checklistsSep 1-7: 6.0% of 9936 checklistsSep 8-14: 7.8% of 9581 checklistsSep 15-21: 8.1% of 9355 checklistsSep 22-30: 8.7% of 12402 checklistsOct 1-7: 10% of 9467 checklistsOct 8-14: 12% of 10279 checklistsOct 15-21: 12% of 8990 checklistsOct 22-31: 14% of 11986 checklistsNov 1-7: 16% of 8461 checklistsNov 8-14: 18% of 8801 checklistsNov 15-21: 17% of 8616 checklistsNov 22-30: 17% of 11088 checklistsDec 1-7: 16% of 8444 checklistsDec 8-14: 15% of 8575 checklistsDec 15-21: 13% of 10958 checklistsDec 22-31: 14% 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. Lea CountyBest late October · 80 checklists that week, 2,698 in all58%
  2. Quay CountyBest the second week of December · 34 checklists that week, 2,220 in all56%
  3. De Baca CountyBest mid February · 16 checklists that week, 2,203 in all56%
  4. Chaves CountyBest mid February · 118 checklists that week, 5,298 in all53%
  5. Colfax CountyBest the second week of October · 277 checklists that week, 8,053 in all47%
  6. Guadalupe CountyBest the second week of December · 49 checklists that week, 2,614 in all43%

Best spots

Share of checklists at the peak
  1. Lake RobertsGrant County, best late October · 20 checklists that week, 669 in all100%
  2. Bill Evans LakeGrant County, best late March · 20 checklists that week, 448 in all100%
  3. Isleta LakesBernalillo County, best mid January · 35 checklists that week, 693 in all98%

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

Best time of day

In New Mexico, the American Coot is most often listed on checklists started between 1 and 3 pm (15% of those checklists).

0%5%10%15%20%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: 6.2% of 29677 checklists7 am: 7.2% of 71785 checklists8 am: 11% of 79208 checklists9 am: 11% of 61605 checklists10 am: 12% of 49588 checklists11 am: 13% of 38079 checklists12 pm: 13% of 31089 checklists1 pm: 15% of 27524 checklists2 pm: 15% of 26644 checklists3 pm: 13% of 26849 checklists4 pm: 12% of 25156 checklists5 pm: 9.8% of 19061 checklists6 pm: 6.9% 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
January15%15%14%14%
February13%13%14%15%
March15%15%15%15%
April14%14%13%11%
May9.3%8.5%7.5%6.7%
June5.1%4.4%3.5%3.2%
July3.3%2.9%3.7%4.2%
August4.2%4.7%5.3%5.7%
September6.0%7.8%8.1%8.7%
October10%12%12%14%
November16%18%17%17%
December16%15%13%14%

Neighboring states

  • Arizona: arrives early October, 1 week earlier than New Mexico
  • Colorado: arrives early October, 1 week earlier than New Mexico
  • Utah: arrives mid October, 1 week later than New Mexico
  • Oklahoma: arrives late August, 6 weeks earlier than New Mexico

Common questions

When do American Coots arrive in New Mexico?
American Coots are in New Mexico all year, but most are here in winter: numbers build from the second week of October, peak in mid November (17% of checklists), and fall back by late April. In the quietest week (early July) they are still on about 3.2% of checklists.
When do American Coots leave New Mexico?
American Coots never fully leave New Mexico: numbers fall back below half their usual rate by late April, but some are still reported in every week, about 3.2% of checklists at the low.
When is the best time to see a American Coot in New Mexico?
The American Coot is reported most often in mid November, on about 17% of New Mexico checklists.
Where in New Mexico are American Coots seen most often?
By county, Lea County, Quay County, and De Baca County have the highest peak reporting rates for the American Coot (counties with at least 200 checklists).