BirdAnalyst
Species · BCR 15 · BBS 2025 Release · 1966–2024

Red Crossbill In Sierra Nevada

All regionsSierra NevadaGeneralists

Red Crossbill in Sierra Nevada has held roughly steady: down 9% on the route-weighted index since 1971.

-9%Since 1971
26Routes In Region
53Years

Notable Signals

No notable trend signals for Red Crossbill in Sierra Nevada. See the full index history below.

Forecast

If the recent trend holds, Red Crossbill in Sierra Nevada is projected to rise about 18% by 2029 — from 0.74 in 2024 to a central estimate of 0.87 (95% range 0.00–3.3). A 5-year backtest shows a typical error of ±99%, with 100% of held-out values landing inside the 95% band.

+18%Change by 2029
0.87Projected 2029 index
0.00–3.395% range
±99%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
20250.910.003.3
20260.900.003.3
20270.890.003.3
20280.880.003.3
20290.870.003.3

Routes In Sierra Nevada

Routes recording Red Crossbill in Sierra Nevada.
Little TruckeeCALIFORNIA112023
ChilcootCALIFORNIA112024
StrawberryCALIFORNIA82001
Greenhorn MtCALIFORNIA51996
CoultervilleCALIFORNIA52002
LumberyardCALIFORNIA32012
GeneseeCALIFORNIA32014
GoumazCALIFORNIA32011
Forest HillCALIFORNIA32002
Last ChanceCALIFORNIA32016
Butte MeadowCALIFORNIA22014
RivertonCALIFORNIA22007
Hat CreekCALIFORNIA22018
LakeshoreCALIFORNIA22002
Tahoe NfCALIFORNIA21994
Chaos CraterCALIFORNIA22007
Pollock PinesCALIFORNIA22019
Eagle LakeCALIFORNIA12024
WestvilleCALIFORNIA12024
DardanelleCALIFORNIA12013
WoodfordsCALIFORNIA12019
Tuolumne GroveCALIFORNIA12022
DownievilleCALIFORNIA12024
WawonaCALIFORNIA12008
Pine MountainCALIFORNIA12017

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