BirdAnalyst
Species · Rhode Island · BBS 2025 Release · 1966–2024

Brown Thrasher Population Trend in Rhode Island

All statesGeneralists

Brown Thrasher in Rhode Island has collapsed: down 89% on the route-weighted index since 1968.

-89%Since 1968
6Routes In State
37Years

Notable Brown Thrasher Trends in Rhode Island

long arc declinecomputed index

Brown Thrasher has collapsed in Rhode Island: down 89% on the route-weighted index since 1968.

Brown Thrasher Population Forecast in Rhode Island

If the recent trend holds, Brown Thrasher in Rhode Island is projected to fall about 100% by 2027 — from 0.33 in 2022 to a central estimate of 0.00 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±83.1%, with 100% of held-out values landing inside the 95% band.

-100%Change by 2027
0.00Projected 2027 index
0.00–2.095% range
±83.1%Backtest error
19662027
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
20230.030.002.0
20240.000.002.0
20250.000.002.0
20260.000.002.0
20270.000.002.0

Brown Thrasher Survey Routes in Rhode Island

Routes recording Brown Thrasher in Rhode Island.
Wallum Lake219921973
Block Island120101988
Quonset Pt120211966
Sachuest Pt119891967
Shannock120221973
Casimir Pulaski Sf120182018

Brown Thrasher Population Trend in Other States

alabamaarkansascoloradoconnecticutdelawarefloridageorgiaillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomapennsylvaniasouth-carolinasouth-dakotatennesseetexasvermontvirginiawest-virginiawisconsinwyoming

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