WhenToBird

Melospiza georgiana · Passerellidae

When Do Swamp Sparrows Arrive in South Carolina?

Adult Swamp Sparrow
Photo: Sandra Keller, CC BY 4.0 via iNaturalist

Swamp Sparrows are winter birds in South Carolina: the first arrive in the second week of October, they are common by mid October, peak in the second week of November (10% of checklists), and most are gone by the second week of April.

When to look

First arrivalsOct 8-14the second week of October
Common byOct 15-21mid October
PeakNov 8-14the second week of November
Most gone byApr 8-14the second week of April

Best: the second week of November. First arrivals the second week of October; most are gone by the second week of April. Peak: on about 10% of South Carolina checklists.

  1. Janpeak season
  2. Febcommon
  3. Marcommon
  4. Aprcommon
  5. Mayrare
  6. Junnot usually seen
  7. Julnot usually seen
  8. Augnot usually seen
  9. Sepnot usually seen
  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: 8.4% of 15487 checklistsJan 8-14: 8.2% of 11691 checklistsJan 15-21: 7.8% of 11994 checklistsJan 22-31: 6.9% of 16225 checklistsFeb 1-7: 6.4% of 12192 checklistsFeb 8-14: 5.7% of 14044 checklistsFeb 15-21: 5.0% of 18483 checklistsFeb 22-28: 7.0% of 12045 checklistsMar 1-7: 6.3% of 11511 checklistsMar 8-14: 6.9% of 11704 checklistsMar 15-21: 6.4% of 11526 checklistsMar 22-31: 6.6% of 17386 checklistsApr 1-7: 5.8% of 13148 checklistsApr 8-14: 5.0% of 13193 checklistsApr 15-21: 3.9% of 13936 checklistsApr 22-30: 2.1% of 19002 checklistsMay 1-7: 0.4% of 14133 checklistsMay 8-14: 0.1% of 13668 checklistsMay 15-21: 0% of 11064 checklistsMay 22-31: 0% of 14461 checklistsJun 1-7: 0% of 10231 checklistsJun 8-14: 0% of 9417 checklistsJun 15-21: 0% of 8012 checklistsJun 22-30: 0% of 9720 checklistsJul 1-7: 0% of 7907 checklistsJul 8-14: 0% of 7338 checklistsJul 15-21: 0% of 7312 checklistsJul 22-31: 0% of 10877 checklistsAug 1-7: 0% of 7816 checklistsAug 8-14: 0% of 7655 checklistsAug 15-21: 0% of 7797 checklistsAug 22-31: 0% of 11246 checklistsSep 1-7: 0% of 8956 checklistsSep 8-14: 0% of 8929 checklistsSep 15-21: 0% of 9389 checklistsSep 22-30: 0.1% of 13028 checklistsOct 1-7: 0.3% of 11063 checklistsOct 8-14: 2.3% of 10968 checklistsOct 15-21: 6.3% of 10264 checklistsOct 22-31: 9.2% of 12917 checklistsNov 1-7: 11% of 8802 checklistsNov 8-14: 9.8% of 8339 checklistsNov 15-21: 10% of 8798 checklistsNov 22-30: 10% of 12925 checklistsDec 1-7: 9.4% of 8541 checklistsDec 8-14: 8.8% of 8609 checklistsDec 15-21: 9.8% of 9961 checklistsDec 22-31: 9.3% of 17541 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 South Carolina 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 South Carolina

Best counties

Share of checklists at the peak
  1. Marlboro CountyBest mid November · 10 checklists that week, 686 in all38%
  2. Hampton CountyBest early January · 29 checklists that week, 1,038 in all31%
  3. Lee CountyBest early November · 19 checklists that week, 1,310 in all31%
  4. Dillon CountyBest early November · 14 checklists that week, 651 in all26%
  5. Calhoun CountyBest mid December · 39 checklists that week, 1,061 in all25%
  6. Jasper CountyBest the second week of January · 261 checklists that week, 12,443 in all25%

Best spots

Share of checklists at the peak
  1. Colclough PondClarendon County, best late October · 40 checklists that week, 379 in all86%
  2. Conway Dog ParkHorry County, best late November · 43 checklists that week, 731 in all84%
  3. Ernest F. Hollings Ace Basin National Wildlife RefugeBeaufort County, best late March · 20 checklists that week, 489 in all80%
  4. Hartwell Recreation AreaAnderson County, best late February · 39 checklists that week, 1,049 in all73%
  5. Sullivan's Island Sand Dunes (Sullivans Island)Charleston County, best late November · 25 checklists that week, 261 in all70%

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

Best time of day

In South Carolina, the Swamp Sparrow is most often listed on checklists started between 8 and 10 am (6.1% of those checklists).

0%2%4%6%8%12 am: too few checklists (222) to judge1 am: too few checklists (160) to judge2 am: too few checklists (132) to judge3 am: too few checklists (212) to judge4 am: too few checklists (267) to judge5 am: too few checklists (1898) to judge6 am: 3.2% of 19280 checklists7 am: 5.4% of 66492 checklists8 am: 6.4% of 73941 checklists9 am: 5.8% of 63039 checklists10 am: 4.7% of 52652 checklists11 am: 4.3% of 41908 checklists12 pm: 3.8% of 36782 checklists1 pm: 4.3% of 33300 checklists2 pm: 4.0% of 32248 checklists3 pm: 3.1% of 35451 checklists4 pm: 2.7% of 34410 checklists5 pm: 1.8% of 27073 checklists6 pm: 0.9% of 17375 checklists7 pm: too few checklists (10313) to judge8 pm: too few checklists (2756) to judge9 pm: too few checklists (672) to judge10 pm: too few checklists (412) to judge11 pm: too few checklists (256) 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
January8.4%8.2%7.8%6.9%
February6.4%5.7%5.0%7.0%
March6.3%6.9%6.4%6.6%
April5.8%5.0%3.9%2.1%
May0.4%0.1%0%0%
June0%0%0%0%
July0%0%0%0%
August0%0%0%0%
September0%0%0%0.1%
October0.3%2.3%6.3%9.2%
November11%9.8%10%10%
December9.4%8.8%9.8%9.3%

Neighboring states

  • North Carolina: arrives early October, 1 week earlier than South Carolina
  • Georgia: arrives the second week of October, in the same week than South Carolina
  • Tennessee: arrives early October, 1 week earlier than South Carolina
  • Virginia: arrives late September, 2 weeks earlier than South Carolina

Common questions

When do Swamp Sparrows arrive in South Carolina?
Swamp Sparrows are winter birds in South Carolina: the first arrive in the second week of October, they are common by mid October, peak in the second week of November (10% of checklists), and most are gone by the second week of April.
When do Swamp Sparrows leave South Carolina?
Most Swamp Sparrows have left South Carolina by the second week of April, when reports fall below half their usual rate. Stragglers are still reported until early May.
When is the best time to see a Swamp Sparrow in South Carolina?
The Swamp Sparrow is reported most often in the second week of November, on about 10% of South Carolina checklists.
Where in South Carolina are Swamp Sparrows seen most often?
By county, Marlboro County, Hampton County, and Lee County have the highest peak reporting rates for the Swamp Sparrow (counties with at least 200 checklists).