WhenToBird

Agelaius phoeniceus · Icteridae

When Do Red-winged Blackbirds Arrive in South Carolina?

Adult male Red-winged Blackbird
Photo: infiniteuniverse, CC0 1.0 via iNaturalist

Red-winged Blackbirds are in South Carolina all year, but most are here in spring: numbers build from late December, peak in early March (26% of checklists), and fall back by mid July. In the quietest week (the second week of September) they are still on about 7.3% of checklists.

When to look

Numbers buildDec 22-31late December
PeakMar 1-7early March
Fall back byJul 15-21mid July
FewestSep 8-14the second week of September

Best: early March. Here all year; numbers build from late December and fall back by mid July. Peak: on about 26% of South Carolina checklists.

  1. Jancommon
  2. Febpeak season
  3. Marpeak season
  4. Aprpeak season
  5. Maypeak season
  6. Junpeak season
  7. Julpeak season
  8. Augcommon
  9. Sepuncommon
  10. Octcommon
  11. Novcommon
  12. Deccommon

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

0%10%20%30%Jan 1-7: 17% of 15487 checklistsJan 8-14: 17% of 11691 checklistsJan 15-21: 17% of 11994 checklistsJan 22-31: 19% of 16225 checklistsFeb 1-7: 22% of 12192 checklistsFeb 8-14: 23% of 14044 checklistsFeb 15-21: 23% of 18483 checklistsFeb 22-28: 27% of 12045 checklistsMar 1-7: 26% of 11511 checklistsMar 8-14: 26% of 11704 checklistsMar 15-21: 26% of 11526 checklistsMar 22-31: 26% of 17386 checklistsApr 1-7: 26% of 13148 checklistsApr 8-14: 26% of 13193 checklistsApr 15-21: 27% of 13936 checklistsApr 22-30: 25% of 19002 checklistsMay 1-7: 24% of 14133 checklistsMay 8-14: 23% of 13668 checklistsMay 15-21: 24% of 11064 checklistsMay 22-31: 24% of 14461 checklistsJun 1-7: 24% of 10231 checklistsJun 8-14: 23% of 9417 checklistsJun 15-21: 24% of 8012 checklistsJun 22-30: 24% of 9720 checklistsJul 1-7: 22% of 7907 checklistsJul 8-14: 21% of 7338 checklistsJul 15-21: 19% of 7312 checklistsJul 22-31: 16% of 10877 checklistsAug 1-7: 12% of 7816 checklistsAug 8-14: 9.7% of 7655 checklistsAug 15-21: 9.2% of 7797 checklistsAug 22-31: 7.9% of 11246 checklistsSep 1-7: 7.7% of 8956 checklistsSep 8-14: 7.2% of 8929 checklistsSep 15-21: 7.0% of 9389 checklistsSep 22-30: 8.0% of 13028 checklistsOct 1-7: 9.1% of 11063 checklistsOct 8-14: 10% of 10968 checklistsOct 15-21: 15% of 10264 checklistsOct 22-31: 18% of 12917 checklistsNov 1-7: 19% of 8802 checklistsNov 8-14: 19% of 8339 checklistsNov 15-21: 20% of 8798 checklistsNov 22-30: 18% of 12925 checklistsDec 1-7: 17% of 8541 checklistsDec 8-14: 17% of 8609 checklistsDec 15-21: 17% of 9961 checklistsDec 22-31: 17% 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. Jasper CountyBest mid June · 181 checklists that week, 12,443 in all78%
  2. Georgetown CountyBest late April · 872 checklists that week, 32,234 in all62%
  3. Clarendon CountyBest the second week of March · 168 checklists that week, 9,189 in all58%
  4. Marlboro CountyBest late June · 10 checklists that week, 686 in all54%
  5. Marion CountyBest late November · 10 checklists that week, 327 in all50%
  6. Colleton CountyBest the second week of July · 79 checklists that week, 8,909 in all50%

Best spots

Share of checklists at the peak
  1. Savannah National Wildlife RefugeJasper County, best the second week of June · 38 checklists that week, 2,487 in all100%
  2. Conway Dog ParkHorry County, best late April · 28 checklists that week, 731 in all96%
  3. Caw Caw Interpretive CenterCharleston County, best the second week of July · 65 checklists that week, 4,450 in all96%
  4. Hartwell Recreation Area (West Prong Little Beaver Dam Creek)Anderson County, best late June · 24 checklists that week, 728 in all96%

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

Best time of day

In South Carolina, the Red-winged Blackbird is most often listed on checklists started between 7 and 9 am (26% of those checklists).

0%10%20%30%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: 22% of 19280 checklists7 am: 26% of 66492 checklists8 am: 25% of 73941 checklists9 am: 23% of 63039 checklists10 am: 18% of 52652 checklists11 am: 16% of 41908 checklists12 pm: 15% of 36782 checklists1 pm: 16% of 33300 checklists2 pm: 16% of 32248 checklists3 pm: 17% of 35451 checklists4 pm: 18% of 34410 checklists5 pm: 15% of 27073 checklists6 pm: 13% 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
January17%17%17%19%
February22%23%23%27%
March26%26%26%26%
April26%26%27%25%
May24%23%24%24%
June24%23%24%24%
July22%21%19%16%
August12%9.7%9.2%7.9%
September7.7%7.2%7.0%8.0%
October9.1%10%15%18%
November19%19%20%18%
December17%17%17%17%

Neighboring states

  • North Carolina: arrives mid February, 7 weeks later than South Carolina
  • Georgia: year-round, peaks the second week of February
  • Tennessee: arrives mid February, 7 weeks later than South Carolina
  • Virginia: arrives mid February, 7 weeks later than South Carolina

Common questions

When do Red-winged Blackbirds arrive in South Carolina?
Red-winged Blackbirds are in South Carolina all year, but most are here in spring: numbers build from late December, peak in early March (26% of checklists), and fall back by mid July. In the quietest week (the second week of September) they are still on about 7.3% of checklists.
When do Red-winged Blackbirds leave South Carolina?
Red-winged Blackbirds never fully leave South Carolina: numbers fall back below half their usual rate by mid July, but some are still reported in every week, about 7.3% of checklists at the low.
When is the best time to see a Red-winged Blackbird in South Carolina?
The Red-winged Blackbird is reported most often in early March, on about 26% of South Carolina checklists.
Where in South Carolina are Red-winged Blackbirds seen most often?
By county, Jasper County, Georgetown County, and Clarendon County have the highest peak reporting rates for the Red-winged Blackbird (counties with at least 200 checklists).