WhenToBird

Nannopterum auritum · Phalacrocoracidae

When Do Double-crested Cormorants Arrive in Arkansas?

Adult Double-crested Cormorant
Photo: jubileej, CC0 1.0 via iNaturalist

Double-crested Cormorants are winter birds in Arkansas: the first arrive in the second week of July, they are common by mid September, peak in the second week of November (13% of checklists), and most are gone by mid April.

When to look

First arrivalsJul 8-14the second week of July
Common bySep 15-21mid September
PeakNov 8-14the second week of November
Most gone byApr 15-21mid April

Best: the second week of November. First arrivals the second week of July; most are gone by mid April. Peak: on about 13% of Arkansas checklists.

  1. Janpeak season
  2. Febcommon
  3. Marpeak season
  4. Aprpeak season
  5. Mayuncommon
  6. Junrare
  7. Julrare
  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%Jan 1-7: 12% of 5292 checklistsJan 8-14: 12% of 4085 checklistsJan 15-21: 9.7% of 4531 checklistsJan 22-31: 8.7% of 6500 checklistsFeb 1-7: 8.9% of 4752 checklistsFeb 8-14: 7.3% of 5385 checklistsFeb 15-21: 7.2% of 7219 checklistsFeb 22-28: 11% of 4163 checklistsMar 1-7: 12% of 3952 checklistsMar 8-14: 12% of 4067 checklistsMar 15-21: 12% of 4446 checklistsMar 22-31: 12% of 6911 checklistsApr 1-7: 10% of 5422 checklistsApr 8-14: 8.1% of 6043 checklistsApr 15-21: 7.0% of 6759 checklistsApr 22-30: 4.5% of 10236 checklistsMay 1-7: 3.0% of 8243 checklistsMay 8-14: 1.8% of 7467 checklistsMay 15-21: 1.3% of 6160 checklistsMay 22-31: 1.3% of 7287 checklistsJun 1-7: 0.7% of 4884 checklistsJun 8-14: 0.6% of 4444 checklistsJun 15-21: 0.8% of 3579 checklistsJun 22-30: 0.9% of 3858 checklistsJul 1-7: 0.7% of 3042 checklistsJul 8-14: 1.3% of 2889 checklistsJul 15-21: 1.4% of 2599 checklistsJul 22-31: 1.5% of 3825 checklistsAug 1-7: 2.1% of 2951 checklistsAug 8-14: 1.9% of 2765 checklistsAug 15-21: 3.4% of 2838 checklistsAug 22-31: 4.2% of 4360 checklistsSep 1-7: 3.9% of 3573 checklistsSep 8-14: 4.8% of 3314 checklistsSep 15-21: 5.4% of 3118 checklistsSep 22-30: 6.7% of 4381 checklistsOct 1-7: 8.6% of 3640 checklistsOct 8-14: 10% of 4119 checklistsOct 15-21: 11% of 3810 checklistsOct 22-31: 13% of 4956 checklistsNov 1-7: 13% of 3704 checklistsNov 8-14: 13% of 3678 checklistsNov 15-21: 14% of 3457 checklistsNov 22-30: 13% of 4648 checklistsDec 1-7: 12% of 3390 checklistsDec 8-14: 13% of 3510 checklistsDec 15-21: 12% of 4540 checklistsDec 22-31: 12% of 6404 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 Arkansas 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 Arkansas

Best counties

Share of checklists at the peak
  1. Yell CountyBest the second week of December · 27 checklists that week, 2,585 in all75%
  2. Perry CountyBest early January · 11 checklists that week, 706 in all74%
  3. Hempstead CountyBest the second week of January · 14 checklists that week, 827 in all61%
  4. Sebastian CountyBest mid December · 87 checklists that week, 4,415 in all54%
  5. Jackson CountyBest the second week of October · 14 checklists that week, 386 in all48%
  6. Desha CountyBest mid September · 14 checklists that week, 756 in all48%

Best spots

Share of checklists at the peak
  1. Crain LakeSebastian County, best late January · 25 checklists that week, 1,284 in all97%
  2. Siloam Springs LakeBenton County, best late November · 33 checklists that week, 678 in all97%
  3. Dam Site Public Use AreaPope County, best mid February · 22 checklists that week, 306 in all95%
  4. Riverview Recreation AreaYell County, best late December · 22 checklists that week, 262 in all94%
  5. Lake Pine BluffJefferson County, best the second week of December · 72 checklists that week, 2,347 in all92%
  6. Dardanelle Recreation AreaYell County, best late January · 23 checklists that week, 192 in all89%

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

Best time of day

In Arkansas, the Double-crested Cormorant is most often listed on checklists started between 2 and 4 pm (10% of those checklists).

0%5%10%15%12 am: too few checklists (98) to judge1 am: too few checklists (88) to judge2 am: too few checklists (95) to judge3 am: too few checklists (94) to judge4 am: too few checklists (145) to judge5 am: too few checklists (1455) to judge6 am: 3.8% of 10807 checklists7 am: 5.2% of 27761 checklists8 am: 6.1% of 30943 checklists9 am: 8.2% of 26975 checklists10 am: 9.3% of 21989 checklists11 am: 8.6% of 16828 checklists12 pm: 8.7% of 14069 checklists1 pm: 9.0% of 13145 checklists2 pm: 10% of 12780 checklists3 pm: 10% of 12723 checklists4 pm: 7.6% of 12500 checklists5 pm: 5.5% of 9576 checklists6 pm: 3.7% of 7182 checklists7 pm: too few checklists (4187) to judge8 pm: too few checklists (1314) to judge9 pm: too few checklists (245) to judge10 pm: too few checklists (122) to judge11 pm: too few checklists (75) 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
January12%12%9.7%8.7%
February8.9%7.3%7.2%11%
March12%12%12%12%
April10%8.1%7.0%4.5%
May3.0%1.8%1.3%1.3%
June0.7%0.6%0.8%0.9%
July0.7%1.3%1.4%1.5%
August2.1%1.9%3.4%4.2%
September3.9%4.8%5.4%6.7%
October8.6%10%11%13%
November13%13%14%13%
December12%13%12%12%

Neighboring states

  • Missouri: arrives mid February, 19 weeks earlier than Arkansas
  • Oklahoma: arrives early October, 11 weeks later than Arkansas
  • Kansas: arrives mid July, 1 week later than Arkansas
  • Mississippi: arrives the second week of October, 12 weeks later than Arkansas

Common questions

When do Double-crested Cormorants arrive in Arkansas?
Double-crested Cormorants are winter birds in Arkansas: the first arrive in the second week of July, they are common by mid September, peak in the second week of November (13% of checklists), and most are gone by mid April.
When do Double-crested Cormorants leave Arkansas?
Most Double-crested Cormorants have left Arkansas by mid April, when reports fall below half their usual rate. Stragglers are still reported until late May.
When is the best time to see a Double-crested Cormorant in Arkansas?
The Double-crested Cormorant is reported most often in the second week of November, on about 13% of Arkansas checklists.
Where in Arkansas are Double-crested Cormorants seen most often?
By county, Yell County, Perry County, and Hempstead County have the highest peak reporting rates for the Double-crested Cormorant (counties with at least 200 checklists).