BirdAnalyst
Species · BCR 27 · BBS 2025 Release · 1966–2024

Blue Grosbeak In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainGeneralists

Blue Grosbeak in Southeastern Coastal Plain has surged: up 100% on the route-weighted index since 1968.

+100%Since 1968
342Routes In Region
58Years

Notable Signals

long arc increasecomputed index

Blue Grosbeak has surged in Southeastern Coastal Plain: up 100% on the route-weighted index since 1968.

Forecast

If the recent trend holds, Blue Grosbeak in Southeastern Coastal Plain is projected to stay roughly flat through 2029, near 12 (95% range 9.7–14). A 5-year backtest shows a typical error of ±21.1%, with 40% of held-out values landing inside the 95% band.

+9%Change by 2029
12Projected 2029 index
9.7–1495% range
±21.1%Backtest error
19662029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected index95% low95% high
2025119.314
2026129.414
2027129.514
2028129.614
2029129.714

Routes In Southeastern Coastal Plain

Routes recording Blue Grosbeak in Southeastern Coastal Plain.
LovedaleFLORIDA612011
Rock ChapelALABAMA462024
SpeedNORTH-CAROLINA392024
JacksonNORTH-CAROLINA342017
NewvilleVIRGINIA312024
MansfieldTENNESSEE302024
CottontonALABAMA272024
BlountstownFLORIDA262024
KinstonNORTH-CAROLINA262024
RhemsNORTH-CAROLINA261993
GrangeburgALABAMA252024
Miller XrdsFLORIDA252019
WadleyGEORGIA252024
DudleyNORTH-CAROLINA252024
Cypress LakesNORTH-CAROLINA252024
New HopeFLORIDA242011
Eglin A.F.B.FLORIDA242011
WorkmoreGEORGIA242019
NewsomsVIRGINIA242024
BostonGEORGIA232024
White HillGEORGIA232024
LovelacevileKENTUCKY232024
ShallotteNORTH-CAROLINA231991
BeargrassNORTH-CAROLINA231981
Cypress CrNORTH-CAROLINA232022

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.