BirdAnalyst
Guild · Oklahoma · BBS 2026 Release · 1966–2025

Generalists In Oklahoma

All statesOklahoma

15 species in this guild. As a group they are -36%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 1969.

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 Oklahoma. See the full index history below.

Generalists In Oklahoma Population Forecast

If the recent trend holds, Generalists in Oklahoma is projected to fall about 32% by 2030 — from 15 in 2025 to a central estimate of 10 (95% range 4.6–16). A 5-year backtest shows a typical error of ±17.4%, with 100% of held-out values landing inside the 95% band.

-32%Change by 2030TrendPercent 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 →
10Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
4.6–1695% 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 →
±17.4%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 Oklahoma is projected to fall about 32% by 2030 — from 15 in 2025 to a central estimate of 10 (95% range 4.6–16). A 5-year backtest shows a typical error of ±17.4%, with 100% of held-out values landing inside the 95% band.19672030
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 →
2026115.517
2027115.316
2028115.116
2029104.816
2030104.616

Member Species In Oklahoma

Generalists species in Oklahoma.
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 →
Black-billed MagpieCorvidae-57%
House SparrowPasseridae-54%
Brown-headed CowbirdIcteridae-53%
Northern MockingbirdMimidae-41%
American CrowCorvidae-15%
European StarlingSturnidae-4%
White-winged DoveColumbidae+12%
Mourning DoveColumbidae+19%
Brewer's BlackbirdIcteridae+30%
Common GrackleIcteridae+37%
Rock PigeonColumbidae+66%
Fish CrowCorvidae+726%
House FinchFringillidae+970%
Chihuahuan RavenCorvidae12×
Eurasian Collared-DoveColumbidae66×

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.