BirdAnalyst
Species · BCR 31 · BBS 2025 Release · 1966–2024

White Ibis In Peninsular Florida

All regionsPeninsular FloridaWetland birds

White Ibis in Peninsular Florida has fallen sharply: down 55% on the route-weighted index since 1968.

-55%Since 1968TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
81Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
58YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

long arc declinecomputed indexTrend sourceWhether the figure is our own computed route-weighted index or an official USGS modeled estimate. The current build labels every trend as computed.Full methodology →

White Ibis has fallen sharply in Peninsular Florida: down 55% on the route-weighted index since 1968.

White Ibis In Peninsular Florida Population Forecast

If the recent trend holds, White Ibis in Peninsular Florida is projected to rise about 74% by 2029 — from 12 in 2024 to a central estimate of 21 (95% range 0.45–41). A 5-year backtest shows a typical error of ±76.6%, with 100% of held-out values landing inside the 95% band.

+74%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
21Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.45–4195% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±76.6%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, White Ibis in Peninsular Florida is projected to rise about 74% by 2029 — from 12 in 2024 to a central estimate of 21 (95% range 0.45–41). A 5-year backtest shows a typical error of ±76.6%, with 100% of held-out values landing inside the 95% band.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 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2025210.3341
2026210.3641
2027210.3941
2028210.4241
2029210.4541

Routes In Peninsular Florida

Routes recording White Ibis in Peninsular Florida.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
ScottsmoorFLORIDA1412024
Shawano 2FLORIDA712011
DavieFLORIDA592017
SandyFLORIDA502015
Citrus ParkFLORIDA462024
KenansvilleFLORIDA432021
Wildernes PkFLORIDA372014
Sunniland GrFLORIDA362019
CorbettFLORIDA352024
Vero BeachFLORIDA332022
Merritt Island 2FLORIDA302014
Winter GardnFLORIDA292019
KendallFLORIDA271988
CroomFLORIDA262024
Myakka HeadFLORIDA252011
Ridge HarborFLORIDA252024
Pleasant GrFLORIDA242009
Mabel 2FLORIDA242019
Card SoundFLORIDA242021
RomeoFLORIDA222024
IndiantownFLORIDA222017
GoetheFLORIDA212024
Punta GordaFLORIDA202015
Boca RatonFLORIDA181990
Weaver StnFLORIDA182019

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