BirdAnalyst
Species · BCR 9 · BBS 2025 Release · 1966–2024

Bald Eagle In Great Basin

All regionsGreat BasinGeneralists

Bald Eagle in Great Basin has surged: up 458% on the route-weighted index since 1975.

+458%Since 1975
82Routes In Region
48Years

Notable Signals

long arc increasecomputed index

Bald Eagle has surged in Great Basin: up 458% on the route-weighted index since 1975.

Forecast

If the recent trend holds, Bald Eagle in Great Basin is projected to fall about 22% by 2029 — from 0.36 in 2024 to a central estimate of 0.28 (95% range 0.18–0.39). A 5-year backtest shows a typical error of ±23.3%, with 80% of held-out values landing inside the 95% band.

-22%Change by 2029
0.28Projected 2029 index
0.18–0.3995% range
±23.3%Backtest error
19732029
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
20250.260.160.36
20260.270.170.37
20270.270.170.37
20280.280.180.38
20290.280.180.39

Routes In Great Basin

Routes recording Bald Eagle in Great Basin.
CraneOREGON82024
JosephOREGON72024
Modoc Point 2OREGON72024
Davis CreekCALIFORNIA42023
BatesIDAHO42019
MerrillOREGON42022
NighthawkWASHINGTON42024
Iron GateCALIFORNIA32019
BakerIDAHO32022
LeadoreIDAHO32024
Modoc PointOREGON32018
TwispWASHINGTON32019
KendallWASHINGTON32024
YakimaWASHINGTON32024
IngallsCALIFORNIA21997
LikelyCALIFORNIA22024
DorrisCALIFORNIA22018
MacdoelCALIFORNIA22019
Crowder FlatCALIFORNIA22007
Iron SpringsIDAHO22024
PicaboIDAHO22009
Lost RiverIDAHO22008
ImnahaOREGON22024
Davis LakeOREGON22024
Wizard FallsOREGON22015

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