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Species · Florida · BBS 2025 Release · 1966–2024

Mottled Duck Population Trend in Florida

All statesWaterfowl

Mottled Duck in Florida has collapsed: down 77% on the route-weighted index since 1968.

-77%Since 1968
60Routes In State
58Years

Notable Mottled Duck Trends in Florida

long arc declinecomputed index

Mottled Duck has collapsed in Florida: down 77% on the route-weighted index since 1968.

Mottled Duck Population Forecast in Florida

If the recent trend holds, Mottled Duck in Florida is projected to rise about 216% by 2029 — from 0.25 in 2024 to a central estimate of 0.78 (95% range 0.00–2.0). A 5-year backtest shows a typical error of ±177.9%, with 100% of held-out values landing inside the 95% band.

+216%Change by 2029
0.78Projected 2029 index
0.00–2.095% range
±177.9%Backtest error
19662029
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
20250.790.002.0
20260.780.002.0
20270.780.002.0
20280.780.002.0
20290.780.002.0

Mottled Duck Survey Routes in Florida

Routes recording Mottled Duck in Florida.
Salvista819781967
Shawano820021987
Merritt Isl720071991
Broward719731966
Davie720022002
Shawano 2620112004
Citrus Park620221990
Winter Gardn420191990
Devils Gardn420231987
Holey Land320241987
Mabel320071995
Pinecrest319991972
Ridge Harbor320241991
Mt. Olive320242024
Andytown319891974
Redlands320162016
Nobleton320081997
Sandy320141987
St Lucie320241988
Alva320231987
Lake Buffum220071991
Indiantown 2220232023
Punta Gorda220151981
Lovedale219971997
Croom220111996

Mottled Duck Population Trend in Other States

alabamaarkansaskansaslouisianamississippisouth-carolinatexas

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