BirdAnalyst
Species · BCR 24 · BBS 2025 Release · 1966–2024

Chestnut-sided Warbler In Central Hardwoods

All regionsCentral HardwoodsForest birds

Chestnut-sided Warbler in Central Hardwoods has declined: down 37% on the route-weighted index since 1999.

-37%Since 1999
10Routes In Region
19Years

Notable Signals

No notable trend signals for Chestnut-sided Warbler in Central Hardwoods. See the full index history below.

Forecast

If the recent trend holds, Chestnut-sided Warbler in Central Hardwoods is projected to stay roughly flat through 2024, near 0.01 (95% range 0.00–0.03). A 5-year backtest shows a typical error of ±49.6%, with 80% of held-out values landing inside the 95% band.

n/aChange by 2024
0.01Projected 2024 index
0.00–0.0395% range
±49.6%Backtest error
19932024
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
20200.010.000.03
20210.010.000.03
20220.010.000.03
20230.010.000.03
20240.010.000.03

Routes In Central Hardwoods

Routes recording Chestnut-sided Warbler in Central Hardwoods.
RupertARKANSAS12013
FultonARKANSAS12016
YellvilleARKANSAS12010
RudyARKANSAS12019
Ozark NfARKANSAS12019
Beaverdam LkILLINOIS11994
Cave In RockILLINOIS11994
BelmontINDIANA12015
Clear SpringINDIANA12007
HoosierINDIANA12000

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