BirdAnalyst
Species · BCR 16 · BBS 2025 Release · 1966–2024

White-faced Ibis In Southern Rockies / Colorado Plateau

All regionsSouthern Rockies / Colorado PlateauWetland birds

White-faced Ibis in Southern Rockies / Colorado Plateau has collapsed: down 94% on the route-weighted index since 1989.

-94%Since 1989
25Routes In Region
36Years

Notable Signals

long arc declinecomputed index

White-faced Ibis has collapsed in Southern Rockies / Colorado Plateau: down 94% on the route-weighted index since 1989.

Forecast

If the recent trend holds, White-faced Ibis in Southern Rockies / Colorado Plateau is projected to stay roughly flat through 2029, near 0.07 (95% range 0.00–0.88). A 5-year backtest shows a typical error of ±273.1%, with 100% of held-out values landing inside the 95% band.

n/aChange by 2029
0.07Projected 2029 index
0.00–0.8895% range
±273.1%Backtest error
19772029
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
20250.130.000.93
20260.110.000.92
20270.100.000.90
20280.090.000.89
20290.070.000.88

Routes In Southern Rockies / Colorado Plateau

Routes recording White-faced Ibis in Southern Rockies / Colorado Plateau.
FruitaCOLORADO412006
San LuisCOLORADO132021
MoffatCOLORADO121999
Mcphee Res.COLORADO102016
DoylevilleCOLORADO82018
DinosaurCOLORADO82010
AngoraCOLORADO82010
MoscaCOLORADO71994
EscalanteUTAH61999
CortezCOLORADO52003
Cortez 2COLORADO42013
DulceNEW-MEXICO42019
GuffeyCOLORADO32018
AlamosaCOLORADO32024
Weston PassCOLORADO32000
Wellington 2UTAH32011
TarryallCOLORADO22008
YampaiARIZONA11977
TincupCOLORADO12018
Cochetopa PassCOLORADO12024
AnethUTAH12003
Dixie NfUTAH12013
WellingtonUTAH12001
AltonUTAH12000
Wellington 3UTAH12023

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