Species · Colorado · BBS 2025 Release · 1966–2024
Snowy Egret Population Trend in Colorado
Snowy Egret in Colorado has fallen sharply: down 65% on the route-weighted index since 1991.
-65%Since 1991
9Routes In State
30Years
Notable Snowy Egret Trends in Colorado
long arc declinecomputed index
Snowy Egret has fallen sharply in Colorado: down 65% on the route-weighted index since 1991.
Snowy Egret Population Forecast in Colorado
If the recent trend holds, Snowy Egret in Colorado is projected to stay roughly flat through 2029, near 0.01 (95% range 0.00–0.15). A 5-year backtest shows a typical error of ±66.1%, with 100% of held-out values landing inside the 95% band.
n/aChange by 2029
0.01Projected 2029 index
0.00–0.1595% range
±66.1%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.02 | 0.00 | 0.16 |
| 2026 | 0.01 | 0.00 | 0.15 |
| 2027 | 0.01 | 0.00 | 0.15 |
| 2028 | 0.01 | 0.00 | 0.15 |
| 2029 | 0.01 | 0.00 | 0.15 |
Snowy Egret Survey Routes in Colorado
Snowy Egret Population Trend in Other States
alabamaarizonaarkansascaliforniaconnecticutdelawarefloridageorgiaidahoillinoisindianakansaslouisianamainemarylandmassachusettsmississippimissourinebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseetexasutahvirginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.