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

Ring-billed Gull In Southeastern Coastal Plain

All regionsSoutheastern Coastal PlainWetland birds

Ring-billed Gull in Southeastern Coastal Plain has collapsed: down 93% on the route-weighted index since 1969.

-93%Since 1969
29Routes In Region
44Years

Notable Signals

long arc declinecomputed index

Ring-billed Gull has collapsed in Southeastern Coastal Plain: down 93% on the route-weighted index since 1969.

Forecast

If the recent trend holds, Ring-billed Gull in Southeastern Coastal Plain is projected to stay roughly flat through 2029, near 0.00 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±83.4%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.00Projected 2029 index
0.00–0.0995% range
±83.4%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
20250.000.000.10
20260.000.000.09
20270.000.000.09
20280.000.000.09
20290.000.000.09

Routes In Southeastern Coastal Plain

Routes recording Ring-billed Gull in Southeastern Coastal Plain.
MattamuskeetNORTH-CAROLINA262001
Johns IsleSOUTH-CAROLINA41969
Alabama Pt 2ALABAMA32014
Port St JoeFLORIDA31991
CaytonNORTH-CAROLINA32022
Bon SecourALABAMA21994
St. ElmoALABAMA22006
Ft GadsdenFLORIDA21990
Alligator PtFLORIDA21999
Dauphin IsALABAMA11987
Alabama PtALABAMA12003
Dauphin Is 2ALABAMA12013
Ft Waltn BchFLORIDA12007
Broad BranchFLORIDA11978
CovingtonFLORIDA11991
Santa RosaFLORIDA12003
Cross CityFLORIDA12015
DarienGEORGIA11982
StocktonGEORGIA12014
ShallotteNORTH-CAROLINA11990
MerrimonNORTH-CAROLINA12013
Myrtle GroveNORTH-CAROLINA12024
ArapahoeNORTH-CAROLINA11992
CaliforniaNORTH-CAROLINA11977
SupplyNORTH-CAROLINA11997

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