Based on 1,279 research-grade iNaturalist observations in Mississippi, Eastern Bluebird is most often recorded in April; in Mississippi it behaves like a seasonal. It ranks #4 among birds recorded in the state in our data.
Sialia sialis
Eastern Bluebird in Mississippi 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 Mississippi in April

Northern Cardinal
Canada Goose

Northern Mockingbird

Indigo Bunting
Eastern Kingbird

Rose-breasted Grosbeak
Brown Thrasher

Orchard Oriole
Places to look in Mississippi
LeFleur's Bluff State Park
Wall Doxey State Park
Holmes County State Park
Great River Road State Park
Tishomingo State Park
State ParkTombigbee State Park
FAQ
When does Eastern Bluebird appear in Mississippi?
Mainly October–June, with the most records in April.
How common is Eastern Bluebird in Mississippi?
It ranks #4 by number of iNaturalist observations among birds in Mississippi (1,279 records in our sample).