Species · BCR 12 · BBS 2025 Release · 1966–2024

Mute Swan In Boreal Hardwood Transition

All regions Boreal Hardwood Transition Waterfowl

Mute Swan in Boreal Hardwood Transition has held roughly steady: up 9% on the route-weighted index since 1979.

+9%Since 1979

6Routes In Region

19Years

Notable Signals

No notable trend signals for Mute Swan in Boreal Hardwood Transition. See the full index history below.

Forecast

If the recent trend holds, Mute Swan in Boreal Hardwood Transition is projected to stay roughly flat through 2023, near 0.04 (95% range 0.00–0.09). A 5-year backtest shows a typical error of ±79.3%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2023

0.04Projected 2023 index

0.00–0.0995% range

±79.3%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% high
2019	0.04	0.09
2020	0.04	0.09
2021	0.04	0.09
2022	0.04	0.09
2023	0.04	0.09

Routes In Boreal Hardwood Transition

Routes recording Mute Swan in Boreal Hardwood Transition.

Herman	MICHIGAN	3	1993
Washington I	WISCONSIN	3	2013
Irons	MICHIGAN	2	1989
Skegemog Pt	MICHIGAN	2	2011
Pleasant Val	MICHIGAN	1	1994
Pleasant Valley 2	MICHIGAN	1	2018

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