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Species · Louisiana · BBS 2025 Release · 1966–2024

Fulvous Whistling-Duck Population Trend in Louisiana

All statesWaterfowl

Fulvous Whistling-Duck in Louisiana has surged: up 730% on the route-weighted index since 1970.

+730%Since 1970
21Routes In State
45Years

Notable Fulvous Whistling-Duck Trends in Louisiana

long arc increasecomputed index

Fulvous Whistling-Duck has surged in Louisiana: up 730% on the route-weighted index since 1970.

Fulvous Whistling-Duck Population Forecast in Louisiana

If the recent trend holds, Fulvous Whistling-Duck in Louisiana is projected to rise about 180% by 2029 — from 1.2 in 2024 to a central estimate of 3.4 (95% range 0.00–7.3). A 5-year backtest shows a typical error of ±190.4%, with 100% of held-out values landing inside the 95% band.

+180%Change by 2029
3.4Projected 2029 index
0.00–7.395% range
±190.4%Backtest error
19682029
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
20253.20.007.1
20263.30.007.1
20273.30.007.2
20283.40.007.2
20293.40.007.3

Fulvous Whistling-Duck Survey Routes in Louisiana

Routes recording Fulvous Whistling-Duck in Louisiana.
Woodlawn3820212008
Richard1520241998
Ltl Chenier 21520112011
Forked Island 21320112010
Kaplan1320231998
Ltl Chenier1320241986
Maurice1120241988
Ville Platte920191988
Esther620241988
Forked Island520242008
Natchez520232023
Vinton 2420222011
Sabine Nwr 2420152009
Shaw320032003
Sabine Nwr320081989
Gran Chenier219751970
Hackberry220141990
De Quincy220152005
Rayville 2220232023
Keystone120062000
Mamou119821968

Fulvous Whistling-Duck Population Trend in Other States

californiafloridatexas

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