WhenToBird

Porphyrio poliocephalus · Rallidae

When Do Gray-headed Swamphens Arrive in Florida?

Gray-headed Swamphens are winter birds in Florida: the first arrive in the second week of October, they are common by mid October, peak in late January (2.1% of checklists), and most are gone by late July.

When to look

First arrivalsOct 8-14the second week of October
Common byOct 15-21mid October
PeakJan 22-31late January
Most gone byJul 22-31late July

Best: late January. First arrivals the second week of October; most are gone by late July. Peak: on about 2.1% of Florida checklists.

  1. Janpeak season
  2. Febpeak season
  3. Marpeak season
  4. Aprcommon
  5. Maycommon
  6. Juncommon
  7. Julcommon
  8. Augcommon
  9. Sepuncommon
  10. Octcommon
  11. Novpeak season
  12. Decpeak season

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

0%1%2%3%Jan 1-7: 1.9% of 74446 checklistsJan 8-14: 1.9% of 60074 checklistsJan 15-21: 2.1% of 62945 checklistsJan 22-31: 2.1% of 84954 checklistsFeb 1-7: 2.1% of 59204 checklistsFeb 8-14: 2.0% of 63259 checklistsFeb 15-21: 1.6% of 77150 checklistsFeb 22-28: 2.1% of 62850 checklistsMar 1-7: 2.1% of 58560 checklistsMar 8-14: 2.0% of 57756 checklistsMar 15-21: 1.9% of 54898 checklistsMar 22-31: 1.7% of 76702 checklistsApr 1-7: 1.6% of 55096 checklistsApr 8-14: 1.3% of 55892 checklistsApr 15-21: 1.3% of 59358 checklistsApr 22-30: 1.3% of 73124 checklistsMay 1-7: 1.0% of 47915 checklistsMay 8-14: 1.1% of 44114 checklistsMay 15-21: 1.1% of 31858 checklistsMay 22-31: 1.3% of 40723 checklistsJun 1-7: 1.2% of 31668 checklistsJun 8-14: 1.1% of 27802 checklistsJun 15-21: 1.2% of 26698 checklistsJun 22-30: 1.1% of 32346 checklistsJul 1-7: 1.2% of 23826 checklistsJul 8-14: 1.2% of 23071 checklistsJul 15-21: 1.2% of 22903 checklistsJul 22-31: 1.1% of 32952 checklistsAug 1-7: 0.9% of 25093 checklistsAug 8-14: 0.9% of 24888 checklistsAug 15-21: 0.9% of 26030 checklistsAug 22-31: 0.9% of 38612 checklistsSep 1-7: 0.8% of 31023 checklistsSep 8-14: 0.7% of 30022 checklistsSep 15-21: 0.8% of 31611 checklistsSep 22-30: 0.7% of 42108 checklistsOct 1-7: 0.8% of 36219 checklistsOct 8-14: 0.8% of 43113 checklistsOct 15-21: 1.0% of 40987 checklistsOct 22-31: 1.3% of 53457 checklistsNov 1-7: 1.6% of 38587 checklistsNov 8-14: 1.6% of 39208 checklistsNov 15-21: 1.9% of 39729 checklistsNov 22-30: 2.0% of 54965 checklistsDec 1-7: 2.2% of 42070 checklistsDec 8-14: 2.1% of 43424 checklistsDec 15-21: 1.6% of 50581 checklistsDec 22-31: 2.0% of 82405 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 Florida 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.

Embed this map on your site

Where in Florida

Best counties

Share of checklists at the peak
  1. Palm Beach CountyBest the second week of March · 3185 checklists that week, 118,595 in all20%
  2. Glades CountyBest early April · 140 checklists that week, 6,182 in all17%
  3. Hendry CountyBest mid March · 91 checklists that week, 3,103 in all11%
  4. Sarasota CountyBest late November · 3331 checklists that week, 120,976 in all7.9%
  5. Broward CountyBest mid January · 1681 checklists that week, 57,530 in all6.4%
  6. Okeechobee CountyBest the second week of May · 123 checklists that week, 5,380 in all5.8%

Best spots

Share of checklists at the peak
  1. Chapel Trail Nature PreserveBroward County, best the second week of December · 20 checklists that week, 1,061 in all97%
  2. Wellington Environmental PreservePalm Beach County, best the second week of November · 22 checklists that week, 1,199 in all95%
  3. three Forks Conservation AreaBrevard County, best the second week of June · 24 checklists that week, 350 in all89%
  4. Lake Okeechobee SanctuariesGlades County, best mid March · 20 checklists that week, 919 in all78%

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

Best time of day

In Florida, the Gray-headed Swamphen is most often listed on checklists started between 6 and 8 am (1.9% of those checklists).

0%1%2%3%12 am: too few checklists (771) to judge1 am: too few checklists (771) to judge2 am: too few checklists (701) to judge3 am: too few checklists (752) to judge4 am: too few checklists (1378) to judge5 am: too few checklists (9462) to judge6 am: 1.4% of 94591 checklists7 am: 2.1% of 296183 checklists8 am: 1.8% of 319987 checklists9 am: 1.8% of 254830 checklists10 am: 1.6% of 209480 checklists11 am: 1.5% of 163924 checklists12 pm: 1.4% of 133478 checklists1 pm: 1.5% of 125012 checklists2 pm: 1.5% of 125299 checklists3 pm: 1.5% of 131072 checklists4 pm: 1.2% of 134410 checklists5 pm: 0.8% of 113373 checklists6 pm: 0.7% of 69886 checklists7 pm: too few checklists (37509) to judge8 pm: too few checklists (8966) to judge9 pm: too few checklists (2093) to judge10 pm: too few checklists (1485) to judge11 pm: too few checklists (862) 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
January1.9%1.9%2.1%2.1%
February2.1%2.0%1.6%2.1%
March2.1%2.0%1.9%1.7%
April1.6%1.3%1.3%1.3%
May1.0%1.1%1.1%1.3%
June1.2%1.1%1.2%1.1%
July1.2%1.2%1.2%1.1%
August0.9%0.9%0.9%0.9%
September0.8%0.7%0.8%0.7%
October0.8%0.8%1.0%1.3%
November1.6%1.6%1.9%2.0%
December2.2%2.1%1.6%2.0%

Common questions

When do Gray-headed Swamphens arrive in Florida?
Gray-headed Swamphens are winter birds in Florida: the first arrive in the second week of October, they are common by mid October, peak in late January (2.1% of checklists), and most are gone by late July.
When do Gray-headed Swamphens leave Florida?
Most Gray-headed Swamphens have left Florida by late July, when reports fall below half their usual rate. Stragglers are still reported until early September.
When is the best time to see a Gray-headed Swamphen in Florida?
The Gray-headed Swamphen is reported most often in late January, on about 2.1% of Florida checklists.
Where in Florida are Gray-headed Swamphens seen most often?
By county, Palm Beach County, Glades County, and Hendry County have the highest peak reporting rates for the Gray-headed Swamphen (counties with at least 200 checklists).