Species · Wyoming · BBS 2025 Release · 1966–2024

Loggerhead Shrike Population Trend in Wyoming

Loggerhead Shrike in Wyoming has edged up: up 11% on the route-weighted index since 1970.

+11%Since 1970
99Routes In State
56Years

Notable Loggerhead Shrike Trends in Wyoming

No notable trend signals for Loggerhead Shrike in Wyoming. See the full index history below.

Loggerhead Shrike Population Forecast in Wyoming

If the recent trend holds, Loggerhead Shrike in Wyoming is projected to fall about 61% by 2029 — from 1.7 in 2024 to a central estimate of 0.64 (95% range 0.00–1.5). A 5-year backtest shows a typical error of ±54.6%, with 80% of held-out values landing inside the 95% band.

-61%Change by 2029
0.64Projected 2029 index
0.001.595% range
±54.6%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
20250.690.001.5
20260.680.001.5
20270.670.001.5
20280.650.001.5
20290.640.001.5

Loggerhead Shrike Survey Routes in Wyoming

Routes recording Loggerhead Shrike in Wyoming.
Newcastle1220241988
Upton1020241988
Arminto1020241982
Schoonover920241982
Baggs920241995
Chugwater820241979
Teapot Dome719891982
Reliance720181977
Sybille Cyn720241993
Redbird619891968
Shawnee620241988
Flamin Gorge620242003
Frannie520232002
Arvada520241982
Sussex520241991
Gas Hills520121992
Wamsutter520241993
Rawlins 2520232015
Clark420242009
Riverview420221983
Rawlins420141992
Carter 2420242017
Natrona319921968
Bill320181974
Bear Creek320181969

Loggerhead Shrike Population Trend in Other States

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