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Species · Louisiana · BBS 2025 Release · 1966–2024

White-faced Ibis Population Trend in Louisiana

All statesWetland birds

White-faced Ibis in Louisiana has surged: up 129% on the route-weighted index since 1970.

+129%Since 1970
33Routes In State
50Years

Notable White-faced Ibis Trends in Louisiana

long arc increasecomputed index

White-faced Ibis has surged in Louisiana: up 129% on the route-weighted index since 1970.

White-faced Ibis Population Forecast in Louisiana

If the recent trend holds, White-faced Ibis in Louisiana is projected to rise about 299% by 2029 — from 3.5 in 2024 to a central estimate of 14 (95% range 0.00–30). A 5-year backtest shows a typical error of ±124.6%, with 100% of held-out values landing inside the 95% band.

+299%Change by 2029
14Projected 2029 index
0.00–3095% range
±124.6%Backtest error
19672029
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
2025130.0029
2026130.0029
2027140.0029
2028140.0030
2029140.0030

White-faced Ibis Survey Routes in Louisiana

Routes recording White-faced Ibis in Louisiana.
Creole15219801967
Kaplan8520231998
Ville Platte6120191988
Mamou4619681968
Port Allen3520242013
Esther3420241988
Gran Chenier3019801967
Woodlawn2820212008
Flat Creek2520002000
Ltl Chenier2420241988
Glencoe2220012001
Richard1720241998
Morgan City1620142012
De Quincy1520042004
Forked Island 21220112010
Maurice1220241988
Forked Island1220242008
Vinton 2920162016
Keystone820121991
Frogmore720242006
Atchafalaya520152009
Ramah420212011
Kraemer420102010
Lafitte319671967
Mayflower320232022

White-faced Ibis Population Trend in Other States

arizonacaliforniacoloradoidahokansasmontananebraskanevadanew-mexiconorth-dakotaoklahomaoregonsouth-dakotatexasutahwyoming

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