Species · Indiana · BBS 2025 Release · 1966–2024
Mute Swan Population Trend in Indiana
Mute Swan in Indiana has surged: up 176% on the route-weighted index since 2002.
+176%Since 2002
7Routes In State
23Years
Notable Mute Swan Trends in Indiana
long arc increasecomputed index
Mute Swan has surged in Indiana: up 176% on the route-weighted index since 2002.
Mute Swan Population Forecast in Indiana
If the recent trend holds, Mute Swan in Indiana is projected to rise about 165% by 2029 — from 0.06 in 2024 to a central estimate of 0.15 (95% range 0.00–0.31). A 5-year backtest shows a typical error of ±152.6%, with 100% of held-out values landing inside the 95% band.
+165%Change by 2029
0.15Projected 2029 index
0.00–0.3195% range
±152.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.14 | 0.00 | 0.30 |
| 2026 | 0.14 | 0.00 | 0.30 |
| 2027 | 0.14 | 0.00 | 0.30 |
| 2028 | 0.14 | 0.00 | 0.30 |
| 2029 | 0.15 | 0.00 | 0.31 |
Mute Swan Survey Routes in Indiana
| Indiana Dune | 6 | 2018 | 1994 |
| Ellis | 4 | 2010 | 1991 |
| Packertown 2 | 3 | 2024 | 2006 |
| Portage | 1 | 2002 | 2002 |
| Portage 2 | 1 | 2018 | 2010 |
| Lagrange | 1 | 2009 | 2009 |
| Wabash | 1 | 2008 | 2008 |
Mute Swan Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.