Species · Louisiana · BBS 2025 Release · 1966–2024

Summer Tanager Population Trend in Louisiana

Summer Tanager in Louisiana has increased: up 33% on the route-weighted index since 1969.

+33%Since 1969
84Routes In State
57Years

Notable Summer Tanager Trends in Louisiana

No notable trend signals for Summer Tanager in Louisiana. See the full index history below.

Summer Tanager Population Forecast in Louisiana

If the recent trend holds, Summer Tanager in Louisiana is projected to fall about 23% by 2029 — from 6.6 in 2024 to a central estimate of 5.0 (95% range 3.0–7.1). A 5-year backtest shows a typical error of ±20.3%, with 100% of held-out values landing inside the 95% band.

-23%Change by 2029
5.0Projected 2029 index
3.07.195% range
±20.3%Backtest error
19672029
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
20255.03.07.1
20265.03.07.1
20275.03.07.1
20285.03.07.1
20295.03.07.1

Summer Tanager Survey Routes in Louisiana

Routes recording Summer Tanager in Louisiana.
Longstreet2320241967
Goodwill2020242004
Natchez1920241992
Mount Union1720241998
Derry1519891967
Womack1520241999
Tensas Nwr1520241987
Easton1419901967
Clay1320241968
Norwood1320242004
Frogmore1220241998
Ivan1220131998
Atchafalaya1220241989
Marion1119961988
Ivan 21120162014
Evelyn1120242004
Fillmore1019891968
Many1019921989
Linville1020241998
Enterprise1020242006
Plettenberg920221968
Oakdale919941991
Derry 2920241990
Hargis 2920142013
Shaw820241967

Summer Tanager Population Trend in Other States

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