BirdAnalyst
Species · BCR 26 · BBS 2025 Release · 1966–2024

Mottled Duck In Mississippi Alluvial Valley

All regionsMississippi Alluvial ValleyWaterfowl

Mottled Duck in Mississippi Alluvial Valley has declined: down 36% on the route-weighted index since 1991.

-36%Since 1991
14Routes In Region
23Years

Notable Signals

No notable trend signals for Mottled Duck in Mississippi Alluvial Valley. See the full index history below.

Forecast

If the recent trend holds, Mottled Duck in Mississippi Alluvial Valley is projected to stay roughly flat through 2021, near 0.08 (95% range 0.00–0.21). A 5-year backtest shows a typical error of ±50.2%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2021
0.08Projected 2021 index
0.00–0.2195% range
±50.2%Backtest error
19682021
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
20170.090.000.21
20180.090.000.21
20190.090.000.21
20200.090.000.21
20210.080.000.21

Routes In Mississippi Alluvial Valley

Routes recording Mottled Duck in Mississippi Alluvial Valley.
RamahLOUISIANA52011
KraemerLOUISIANA32010
TippoMISSISSIPPI32012
EudoraARKANSAS22009
CarlisleLOUISIANA21968
KeystoneLOUISIANA22008
ShawLOUISIANA21980
BrousvilleLOUISIANA22015
BelairLOUISIANA22016
BerwickLOUISIANA21993
ConcordLOUISIANA22007
KelsoARKANSAS12010
RayvilleLOUISIANA11991
TransylvaniaLOUISIANA12007

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