BirdAnalyst
Species · BCR 11 · BBS 2025 Release · 1966–2024

Purple Finch In Prairie Potholes

All regionsPrairie PotholesGeneralists

Purple Finch in Prairie Potholes has fallen sharply: down 64% on the route-weighted index since 1976.

-64%Since 1976
10Routes In Region
26Years

Notable Signals

No notable trend signals for Purple Finch in Prairie Potholes. See the full index history below.

Forecast

If the recent trend holds, Purple Finch in Prairie Potholes is projected to stay roughly flat through 2028, near 0.02 (95% range 0.00–0.07). A 5-year backtest shows a typical error of ±126.2%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2028
0.02Projected 2028 index
0.00–0.0795% range
±126.2%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
20240.020.000.07
20250.020.000.07
20260.020.000.07
20270.020.000.07
20280.020.000.07

Routes In Prairie Potholes

Routes recording Purple Finch in Prairie Potholes.
BeltramiMINNESOTA51998
ArlingtonMINNESOTA11978
MaynardMINNESOTA11999
OkleeMINNESOTA11990
WylieMINNESOTA11976
ErieMINNESOTA11977
BadgerMINNESOTA12017
Lake BronsonMINNESOTA11998
RollaNORTH-DAKOTA12004
Turtle MtnsNORTH-DAKOTA12023

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