BirdAnalyst
Species · BCR 34 · BBS 2025 Release · 1966–2024

American Coot In Sierra Madre Occidental

All regionsSierra Madre OccidentalWetland birds

American Coot in Sierra Madre Occidental has collapsed: down 81% on the route-weighted index since 1974.

-81%Since 1974
5Routes In Region
38Years

Notable Signals

long arc declinecomputed index

American Coot has collapsed in Sierra Madre Occidental: down 81% on the route-weighted index since 1974.

Forecast

If the recent trend holds, American Coot in Sierra Madre Occidental is projected to fall about 41% by 2028 — from 0.95 in 2023 to a central estimate of 0.57 (95% range 0.00–3.2). A 5-year backtest shows a typical error of ±330.1%, with 100% of held-out values landing inside the 95% band.

-41%Change by 2028
0.57Projected 2028 index
0.00–3.295% range
±330.1%Backtest error
19692028
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
20240.670.003.3
20250.650.003.3
20260.620.003.3
20270.590.003.3
20280.570.003.2

Routes In Sierra Madre Occidental

Routes recording American Coot in Sierra Madre Occidental.
AlpineARIZONA212023
Mormon LakeARIZONA71975
PrescottARIZONA22019
WilliamsARIZONA11993
RedingtonARIZONA12001

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