BirdAnalyst
Species · BCR 18 · BBS 2025 Release · 1966–2024

Pine Siskin In Shortgrass Prairie

All regionsShortgrass PrairieGeneralists

Pine Siskin in Shortgrass Prairie has collapsed: down 85% on the route-weighted index since 1981.

-85%Since 1981
7Routes In Region
32Years

Notable Signals

long arc declinecomputed index

Pine Siskin has collapsed in Shortgrass Prairie: down 85% on the route-weighted index since 1981.

Forecast

If the recent trend holds, Pine Siskin in Shortgrass Prairie is projected to stay roughly flat through 2029, near 0.02 (95% range 0.00–0.24). A 5-year backtest shows a typical error of ±168.6%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.02Projected 2029 index
0.00–0.2495% range
±168.6%Backtest error
19692029
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
20250.040.000.26
20260.030.000.25
20270.030.000.25
20280.020.000.25
20290.020.000.24

Routes In Shortgrass Prairie

Routes recording Pine Siskin in Shortgrass Prairie.
ElbertCOLORADO32024
KiowaCOLORADO22018
NinaviewCOLORADO12016
CrawfordNEBRASKA11996
Pine RidgeNEBRASKA12004
GrenvilleNEW-MEXICO11999
LingleWYOMING12006

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