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

Generalists In Rhode Island

All statesRhode Island

35 species in this guild. As a group they are -1%Guild trendA mean-index aggregate across the species in this group — the structural direction of the guild, with individual-species noise smoothed out.Full methodology → since 1968.

Guild SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for generalists in Rhode Island. See the full index history below.

Generalists In Rhode Island Population Forecast

If the recent trend holds, Generalists in Rhode Island is projected to rise about 78% by 2029 — from 11 in 2024 to a central estimate of 20 (95% range 0.12–39). A 5-year backtest shows a typical error of ±102%, with 100% of held-out values landing inside the 95% band.

+78%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
20Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.12–3995% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±102%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, Generalists in Rhode Island is projected to rise about 78% by 2029 — from 11 in 2024 to a central estimate of 20 (95% range 0.12–39). A 5-year backtest shows a typical error of ±102%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2025200.0039
2026200.0139
2027200.0539
2028200.0839
2029200.1239

Member Species In Rhode Island

Generalists species in Rhode Island.
TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
Brown ThrasherMimidae-89%
American KestrelFalconidae-84%
Purple FinchFringillidae-81%
Black-billed CuckooCuculidae-76%
Rock PigeonColumbidae-74%
Northern MockingbirdMimidae-67%
European StarlingSturnidae-64%
Red-winged BlackbirdIcteridae-62%
Eastern TowheePasserellidae-62%
Blue JayCorvidae-52%
Scarlet TanagerCardinalidae-41%
Swamp SparrowPasserellidae-40%
Common GrackleIcteridae-28%
Broad-winged HawkAccipitridae-22%
Field SparrowPasserellidae-19%
Baltimore OrioleIcteridae+11%
American CrowCorvidae+41%
Song SparrowPasserellidae+50%
Red-shouldered HawkAccipitridae+69%
House SparrowPasseridae+85%
Barred OwlStrigidae+118%
American GoldfinchFringillidae+127%
Red-tailed HawkAccipitridae+150%
Gray CatbirdMimidae+172%
Yellow-billed CuckooCuculidae+173%
Brown-headed CowbirdIcteridae+174%
House FinchFringillidae+237%
Ruby-throated HummingbirdTrochilidae+251%
Rose-breasted GrosbeakCardinalidae+256%
Indigo BuntingCardinalidae+272%
Turkey VultureCathartidae+274%
Mourning DoveColumbidae+337%
Chipping SparrowPasserellidae+413%
Cedar WaxwingBombycillidae11×
Northern CardinalCardinalidae45×

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