BirdAnalyst
Species · BCR 17 · BBS 2025 Release · 1966–2024

Cassin's Finch In Badlands and Prairies

All regionsBadlands and PrairiesGeneralists

Cassin's Finch in Badlands and Prairies has fallen sharply: down 61% on the route-weighted index since 1981.

-61%Since 1981
16Routes In Region
36Years

Notable Signals

long arc declinecomputed index

Cassin's Finch has fallen sharply in Badlands and Prairies: down 61% on the route-weighted index since 1981.

Forecast

If the recent trend holds, Cassin's Finch in Badlands and Prairies is projected to stay roughly flat through 2027, near 0.01 (95% range 0.00–0.11). A 5-year backtest shows a typical error of ±46.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2027
0.01Projected 2027 index
0.00–0.1195% range
±46.1%Backtest error
19772027
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
20230.010.000.11
20240.010.000.11
20250.010.000.11
20260.010.000.11
20270.010.000.11

Routes In Badlands and Prairies

Routes recording Cassin's Finch in Badlands and Prairies.
Black FoxSOUTH-DAKOTA42017
HazelrodtSOUTH-DAKOTA32010
SavageMONTANA21996
Reed PointMONTANA22015
Long DrawSOUTH-DAKOTA22001
Elk MountainSOUTH-DAKOTA21995
ShawneeWYOMING22004
HighwoodMONTANA11996
Maynard CouleeMONTANA12022
CusterSOUTH-DAKOTA11996
Pleasant ValSOUTH-DAKOTA12022
EnglewoodSOUTH-DAKOTA11997
Lightning CrSOUTH-DAKOTA12017
SundanceWYOMING12022
DaytonWYOMING11988
MoskeeWYOMING11995

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