BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

Pine Siskin In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauGeneralists

Pine Siskin in Southern Rockies / Colorado Plateau has risen sharply: up 75% on the route-weighted index since 1970.

+75%Since 1970
159Routes In Region
56Years

Notable Signals

long arc increasecomputed index

Pine Siskin has risen sharply in Southern Rockies / Colorado Plateau: up 75% on the route-weighted index since 1970.

Forecast

If the recent trend holds, Pine Siskin in Southern Rockies / Colorado Plateau is projected to rise about 77% by 2029 — from 4.5 in 2024 to a central estimate of 8.0 (95% range 2.7–13). A 5-year backtest shows a typical error of ±100.8%, with 80% of held-out values landing inside the 95% band.

+77%Change by 2029
8.0Projected 2029 index
2.7–1395% range
±100.8%Backtest error
19682029
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
20257.82.613
20267.82.613
20277.92.713
20287.92.713
20298.02.713

Routes In Southern Rockies / Colorado Plateau

Routes recording Pine Siskin in Southern Rockies / Colorado Plateau.
Buffalo ParkCOLORADO722023
Stillwater PassCOLORADO612009
Grizzly RdgeUTAH452024
La SalUTAH402000
Lake City 2COLORADO362024
SoapstoneUTAH312024
Ragged Mtn.COLORADO302019
Pinos CreekCOLORADO271990
CastletonCOLORADO242024
Uintah NfUTAH231994
Wasatch NfUTAH232024
Navajo LakeUTAH222024
Dunckley PasCOLORADO212024
Weston PassCOLORADO202000
TsaileARIZONA192023
Haycamp MesaCOLORADO192024
Stillwater Pass 2COLORADO192024
Skyline DrivUTAH192016
La Sal 3UTAH192024
Dolores RivCOLORADO182024
Angel FireNEW-MEXICO182002
PinonCOLORADO172024
HeeneyCOLORADO172019
Gold HillCOLORADO162012
Lizard Head PassCOLORADO162024

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