BirdAnalyst
Species · Washington · BBS 2025 Release · 1966–2024

Loggerhead Shrike Population Trend in Washington

All statesGeneralists

Loggerhead Shrike in Washington has collapsed: down 81% on the route-weighted index since 1970.

-81%Since 1970
28Routes In State
55Years

Notable Loggerhead Shrike Trends in Washington

long arc declinecomputed index

Loggerhead Shrike has collapsed in Washington: down 81% on the route-weighted index since 1970.

Loggerhead Shrike Population Forecast in Washington

If the recent trend holds, Loggerhead Shrike in Washington is projected to stay roughly flat through 2028, near 0.08 (95% range 0.00–0.45). A 5-year backtest shows a typical error of ±54.5%, with 100% of held-out values landing inside the 95% band.

+7%Change by 2028
0.08Projected 2028 index
0.00–0.4595% range
±54.5%Backtest error
19682028
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
20240.090.000.47
20250.090.000.46
20260.080.000.46
20270.080.000.45
20280.080.000.45

Loggerhead Shrike Survey Routes in Washington

Routes recording Loggerhead Shrike in Washington.
Arid Land Er819961988
Potholes619971996
Moses Lake519791979
Selah320052001
Columbia Nwr320051992
Hatton319931992
Hanford Site219961989
Pomona219981998
Othello219911983
Richland220232006
Horn Rapids220232005
Moses Coulee220211993
Twisp119851985
Brewster120111978
Harrington120052004
Wapato119921971
Mercer120221968
Connell120031968
Bickleton120111983
Sulphur120191996
Quincy119921981
Ewan119991999
Ellensburg120051982
Harwood119961993
Pomeroy120212021

Loggerhead Shrike Population Trend in Other States

alabamaarizonaarkansascaliforniacoloradofloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmichiganminnesotamississippimissourimontananebraskanevadanew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniasouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawest-virginiawisconsinwyoming

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