BirdAnalyst
Species · BCR 18 · BBS 2026 Release · 1966–2025

White-faced Ibis In Shortgrass Prairie

All regionsShortgrass PrairieWetland birds

White-faced Ibis in Shortgrass Prairie has held roughly steady: up 0% on the route-weighted index since 1995.

+0%Since 1995TrendPercent 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 →
25Routes 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 →
28YearsYears 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 →

No notable trend signals for White-faced Ibis in Shortgrass Prairie. See the full index history below.

White-faced Ibis In Shortgrass Prairie Population Forecast

If the recent trend holds, White-faced Ibis in Shortgrass Prairie is projected to fall about 46% by 2030 — from 0.44 in 2025 to a central estimate of 0.24 (95% range 0.00–0.91). A 5-year backtest shows a typical error of ±1417%, with 100% of held-out values landing inside the 95% band.

-46%Change by 2030TrendPercent 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 →
0.24Projected 2030 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
0.00–0.9195% 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 →
±1417%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-faced Ibis in Shortgrass Prairie is projected to fall about 46% by 2030 — from 0.44 in 2025 to a central estimate of 0.24 (95% range 0.00–0.91). A 5-year backtest shows a typical error of ±1417%, with 100% of held-out values landing inside the 95% band.19862030
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 →
20260.240.000.91
20270.240.000.91
20280.240.000.91
20290.240.000.91
20300.240.000.91

Routes In Shortgrass Prairie

Routes recording White-faced Ibis in Shortgrass Prairie.
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 →
DoughertyTEXAS232025
GruverTEXAS152007
Doyle Bridge 2COLORADO121999
PlymellKANSAS112001
TwichellTEXAS112025
PantexTEXAS102016
WakaTEXAS102016
KiowaCOLORADO92000
HudsonCOLORADO82012
ClovisNEW-MEXICO82013
TenmileTEXAS72019
PanhandleTEXAS62016
Fort MorganCOLORADO52001
JulesburgCOLORADO52021
ClaytonvilleTEXAS42019
NeegrandeCOLORADO32018
FlaglerCOLORADO32012
CircleTEXAS22017
FloydadaTEXAS22017
EdisonCOLORADO12023
Arsenal 2COLORADO12022
Murray LakeNEBRASKA12003
Cooley LakeNEW-MEXICO12013
PostTEXAS12012
LingleWYOMING12024

Source: USGS North American Breeding Bird Survey, retrieved 2026-08-14.