Species · Rhode Island · BBS 2025 Release · 1966–2024
Black-throated Green Warbler Population Trend in Rhode Island
Black-throated Green Warbler in Rhode Island has fallen sharply: down 69% on the route-weighted index since 1969.
-69%Since 1969
5Routes In State
24Years
Notable Black-throated Green Warbler Trends in Rhode Island
long arc declinecomputed index
Black-throated Green Warbler has fallen sharply in Rhode Island: down 69% on the route-weighted index since 1969.
Black-throated Green Warbler Population Forecast in Rhode Island
If the recent trend holds, Black-throated Green Warbler in Rhode Island is projected to rise about 66% by 2029 — from 0.33 in 2024 to a central estimate of 0.55 (95% range 0.00–1.6). A 5-year backtest shows a typical error of ±222.4%, with 100% of held-out values landing inside the 95% band.
+66%Change by 2029
0.55Projected 2029 index
0.00–1.695% range
±222.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.58 | 0.00 | 1.6 |
| 2026 | 0.57 | 0.00 | 1.6 |
| 2027 | 0.56 | 0.00 | 1.6 |
| 2028 | 0.56 | 0.00 | 1.6 |
| 2029 | 0.55 | 0.00 | 1.6 |
Black-throated Green Warbler Survey Routes in Rhode Island
| Pulaski | 4 | 1992 | 1991 |
| Quonset Pt | 1 | 2024 | 1966 |
| Shannock | 1 | 2019 | 1973 |
| Wallum Lake | 1 | 2016 | 2010 |
| Casimir Pulaski Sf | 1 | 2018 | 2016 |
Black-throated Green Warbler Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.