Based on 2,046 research-grade iNaturalist observations in South Carolina, Red-winged Blackbird is most often recorded in April; in South Carolina it behaves like a seasonal. It ranks #41 among birds recorded in the state in our data.
Agelaius phoeniceus
Red-winged Blackbird in South Carolina by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also seen in South Carolina in April

Northern Cardinal
Eastern Bluebird

Northern Mockingbird

Mourning Dove
House Finch

Great Blue Heron

American Robin

Chipping Sparrow
Places to look in South Carolina
South Carolina Botanical Garden
Table Rock State Park
State ParkHuntington Beach State Park
Paris Mountain State Park
Devils Fork State Park
Botanical GardenRiverbanks Zoo
FAQ
When does Red-winged Blackbird appear in South Carolina?
Mainly January–June, with the most records in April.
How common is Red-winged Blackbird in South Carolina?
It ranks #41 by number of iNaturalist observations among birds in South Carolina (2,046 records in our sample).