Species · Tennessee · BBS 2025 Release · 1966–2024

Loggerhead Shrike Population Trend in Tennessee

All states Generalists

Loggerhead Shrike in Tennessee has collapsed: down 96% on the route-weighted index since 1968.

-96%Since 1968

37Routes In State

56Years

Notable Loggerhead Shrike Trends in Tennessee

long arc declinecomputed index

Loggerhead Shrike has collapsed in Tennessee: down 96% on the route-weighted index since 1968.

Loggerhead Shrike Population Forecast in Tennessee

If the recent trend holds, Loggerhead Shrike in Tennessee is projected to fall about 100% by 2028 — from 0.20 in 2023 to a central estimate of 0.00 (95% range 0.00–0.89). A 5-year backtest shows a typical error of ±1275.4%, with 60% of held-out values landing inside the 95% band.

-100%Change by 2028

0.00Projected 2028 index

0.00–0.8995% range

±1275.4%Backtest error

Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.

Year	Projected index	95% low	95% high
2024	0.00	0.00	0.89
2025	0.00	0.00	0.89
2026	0.00	0.00	0.89
2027	0.00	0.00	0.89
2028	0.00	0.00	0.89

Loggerhead Shrike Survey Routes in Tennessee

Routes recording Loggerhead Shrike in Tennessee.

Trenton	9	1990	1966
Pawpaw 2	6	2023	2014
Tullahoma	5	1999	1967
Moscow	4	1997	1966
Smokey Jct	4	1997	1967
Tibbs	3	2009	1966
Sweetlips	2	2003	1966
Humboldt	2	1989	1966
Collinwood	2	2014	1966
White House	2	1996	1966
Corryton Rd	2	1988	1966
Mt Olive	2	1995	1966
Allens Brdge	2	1994	1968
Tiptonville	1	2008	1966
Pawpaw	1	2012	1966
Brownsville	1	2005	1966
Whiteville	1	1999	1966
Big Sandy	1	1995	1966
Mansfield	1	1994	1966
Silerton	1	1991	1966
Pond Creek	1	1993	1966
Indian Mound	1	1983	1966
Wrigley	1	2007	1966
Campbellsville	1	2015	1966
Lewis Forest	1	1999	1966

Loggerhead Shrike Population Trend in Other States

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