Species · Indiana · BBS 2025 Release · 1966–2024
Scarlet Tanager Population Trend in Indiana
Scarlet Tanager in Indiana has surged: up 96% on the route-weighted index since 1968.
+96%Since 1968
60Routes In State
58Years
Notable Scarlet Tanager Trends in Indiana
long arc increasecomputed index
Scarlet Tanager has surged in Indiana: up 96% on the route-weighted index since 1968.
Scarlet Tanager Population Forecast in Indiana
If the recent trend holds, Scarlet Tanager in Indiana is projected to rise about 58% by 2029 — from 1.3 in 2024 to a central estimate of 2.1 (95% range 0.55–3.6). A 5-year backtest shows a typical error of ±71.5%, with 100% of held-out values landing inside the 95% band.
+58%Change by 2029
2.1Projected 2029 index
0.55–3.695% range
±71.5%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.0 | 0.50 | 3.5 |
| 2026 | 2.0 | 0.52 | 3.5 |
| 2027 | 2.0 | 0.53 | 3.6 |
| 2028 | 2.1 | 0.54 | 3.6 |
| 2029 | 2.1 | 0.55 | 3.6 |
Scarlet Tanager Survey Routes in Indiana
| Hoosier | 24 | 2024 | 1990 |
| Georgia | 12 | 2024 | 1999 |
| Clear Spring | 4 | 2024 | 1981 |
| Packertown | 3 | 2004 | 1967 |
| Belmont | 3 | 2024 | 1981 |
| Corydon | 3 | 2024 | 1966 |
| Vevay | 3 | 2024 | 1966 |
| Wallace | 3 | 2024 | 2000 |
| Witts Station | 3 | 2024 | 2001 |
| Cross Plains | 3 | 2024 | 1999 |
| South Bend | 2 | 1983 | 1966 |
| Middletown | 2 | 2002 | 1978 |
| Pimento | 2 | 2022 | 1985 |
| Brazil | 2 | 2015 | 1976 |
| Friendswood | 2 | 2024 | 1988 |
| Azalia | 2 | 2022 | 1982 |
| Cumback | 2 | 2019 | 1966 |
| Millersburg | 2 | 2012 | 1982 |
| Indian Spgs | 2 | 2024 | 1983 |
| Celestine | 2 | 2024 | 1979 |
| New Phila | 2 | 2024 | 1982 |
| Evansville | 2 | 2008 | 1974 |
| Gary | 1 | 1992 | 1984 |
| Hebron | 1 | 2002 | 1966 |
| Knox | 1 | 2012 | 1989 |
Scarlet Tanager Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.