WhenToBird

Setophaga castanea · Parulidae

When Do Bay-breasted Warblers Arrive in Florida?

Adult Bay-breasted Warbler
Photo: Roger A. Morales-Flores, CC BY 4.0 via iNaturalist

Bay-breasted Warblers mostly pass through Florida: the first show up in early October, they are common by the second week of October, peak in mid October (3.6% of checklists), and most are gone by late October.

When to look

First arrivalsOct 1-7early October
Common byOct 8-14the second week of October
PeakOct 15-21mid October
Most gone byOct 22-31late October

Best: mid October. First arrivals early October; most are gone by late October. Peak: on about 3.6% of Florida checklists.

  1. Jannot usually seen
  2. Febnot usually seen
  3. Marnot usually seen
  4. Apruncommon
  5. Mayuncommon
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Seprare
  10. Octpeak season
  11. Novcommon
  12. Decnot usually seen

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

0%2%4%6%Jan 1-7: 0% of 74446 checklistsJan 8-14: 0% of 60074 checklistsJan 15-21: 0.1% of 62945 checklistsJan 22-31: 0.1% of 84954 checklistsFeb 1-7: 0.1% of 59204 checklistsFeb 8-14: 0% of 63259 checklistsFeb 15-21: 0% of 77150 checklistsFeb 22-28: 0.1% of 62850 checklistsMar 1-7: 0.1% of 58560 checklistsMar 8-14: 0% of 57756 checklistsMar 15-21: 0% of 54898 checklistsMar 22-31: 0% of 76702 checklistsApr 1-7: 0.1% of 55096 checklistsApr 8-14: 0.1% of 55892 checklistsApr 15-21: 0.1% of 59358 checklistsApr 22-30: 0.5% of 73124 checklistsMay 1-7: 1.6% of 47915 checklistsMay 8-14: 0.4% of 44114 checklistsMay 15-21: 0.1% of 31858 checklistsMay 22-31: 0% of 40723 checklistsJun 1-7: 0% of 31668 checklistsJun 8-14: 0% of 27802 checklistsJun 15-21: 0% of 26698 checklistsJun 22-30: 0% of 32346 checklistsJul 1-7: 0% of 23826 checklistsJul 8-14: 0% of 23071 checklistsJul 15-21: 0% of 22903 checklistsJul 22-31: 0% of 32952 checklistsAug 1-7: 0% of 25093 checklistsAug 8-14: 0% of 24888 checklistsAug 15-21: 0% of 26030 checklistsAug 22-31: 0% of 38612 checklistsSep 1-7: 0.1% of 31023 checklistsSep 8-14: 0.1% of 30022 checklistsSep 15-21: 0.1% of 31611 checklistsSep 22-30: 0.1% of 42108 checklistsOct 1-7: 0.6% of 36219 checklistsOct 8-14: 2.8% of 43113 checklistsOct 15-21: 5.4% of 40987 checklistsOct 22-31: 2.8% of 53457 checklistsNov 1-7: 0.9% of 38587 checklistsNov 8-14: 0.4% of 39208 checklistsNov 15-21: 0.1% of 39729 checklistsNov 22-30: 0.1% of 54965 checklistsDec 1-7: 0.1% of 42070 checklistsDec 8-14: 0.1% of 43424 checklistsDec 15-21: 0.1% of 50581 checklistsDec 22-31: 0.1% 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.

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Where in Florida

Best counties

Share of checklists at the peak
  1. Lafayette CountyBest mid October · 11 checklists that week, 1,203 in all7.9%
  2. Franklin CountyBest the second week of October · 488 checklists that week, 20,336 in all7.4%
  3. Palm Beach CountyBest mid October · 2309 checklists that week, 118,595 in all7.1%
  4. Miami-Dade CountyBest mid October · 2263 checklists that week, 118,849 in all6.2%
  5. Broward CountyBest mid October · 1352 checklists that week, 57,530 in all6.1%
  6. Okaloosa CountyBest early May · 326 checklists that week, 16,003 in all5.2%

Best spots

Share of checklists at the peak
  1. Orchard View ParkPalm Beach County, best late October · 101 checklists that week, 667 in all61%
  2. Jupiter Inlet (Loxahatchee River)Palm Beach County, best late October · 30 checklists that week, 229 in all45%
  3. Serenoa Glade PreservePalm Beach County, best mid October · 21 checklists that week, 257 in all37%
  4. Rotary Park Environmental CenterLee County, best the second week of May · 69 checklists that week, 3,026 in all30%
  5. Cliff LakeBroward County, best late October · 129 checklists that week, 1,950 in all27%
  6. Orlando ParkBrevard County, best late October · 32 checklists that week, 564 in all27%

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

Best time of day

In Florida, the Bay-breasted Warbler is most often listed on checklists started between 7 and 9 am (0.4% of those checklists).

0%0.5%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: 0.1% of 94591 checklists7 am: 0.4% of 296183 checklists8 am: 0.4% of 319987 checklists9 am: 0.4% of 254830 checklists10 am: 0.3% of 209480 checklists11 am: 0.3% of 163924 checklists12 pm: 0.3% of 133478 checklists1 pm: 0.3% of 125012 checklists2 pm: 0.3% of 125299 checklists3 pm: 0.3% of 131072 checklists4 pm: 0.3% of 134410 checklists5 pm: 0.3% of 113373 checklists6 pm: 0.1% 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
January0%0%0.1%0.1%
February0.1%0%0%0.1%
March0.1%0%0%0%
April0.1%0.1%0.1%0.5%
May1.6%0.4%0.1%0%
June0%0%0%0%
July0%0%0%0%
August0%0%0%0%
September0.1%0.1%0.1%0.1%
October0.6%2.8%5.4%2.8%
November0.9%0.4%0.1%0.1%
December0.1%0.1%0.1%0.1%

Neighboring states

  • Georgia: arrives mid September, 2 weeks earlier than Florida
  • South Carolina: arrives late September, 1 week earlier than Florida
  • Alabama: arrives mid April, 22 weeks earlier than Florida
  • Mississippi: arrives mid April, 22 weeks earlier than Florida

Common questions

When do Bay-breasted Warblers arrive in Florida?
Bay-breasted Warblers mostly pass through Florida: the first show up in early October, they are common by the second week of October, peak in mid October (3.6% of checklists), and most are gone by late October.
When do Bay-breasted Warblers leave Florida?
Most Bay-breasted Warblers have left Florida by late October, when reports fall below half their usual rate. Stragglers are still reported until early November.
When is the best time to see a Bay-breasted Warbler in Florida?
The Bay-breasted Warbler is reported most often in mid October, on about 3.6% of Florida checklists.
Where in Florida are Bay-breasted Warblers seen most often?
By county, Lafayette County, Franklin County, and Palm Beach County have the highest peak reporting rates for the Bay-breasted Warbler (counties with at least 200 checklists).