Species · Idaho · BBS 2025 Release · 1966–2024
Snowy Egret Population Trend in Idaho
Snowy Egret in Idaho has collapsed: down 86% on the route-weighted index since 1972.
-86%Since 1972
5Routes In State
22Years
Notable Snowy Egret Trends in Idaho
long arc declinecomputed index
Snowy Egret has collapsed in Idaho: down 86% on the route-weighted index since 1972.
Snowy Egret Population Forecast in Idaho
If the recent trend holds, Snowy Egret in Idaho is projected to stay roughly flat through 2012, near 0.00 (95% range 0.00–0.38). A 5-year backtest shows a typical error of ±831.4%, with 60% of held-out values landing inside the 95% band.
n/aChange by 2012
0.00Projected 2012 index
0.00–0.3895% range
±831.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2008 | 0.00 | 0.00 | 0.38 |
| 2009 | 0.00 | 0.00 | 0.38 |
| 2010 | 0.00 | 0.00 | 0.38 |
| 2011 | 0.00 | 0.00 | 0.38 |
| 2012 | 0.00 | 0.00 | 0.38 |
Snowy Egret Survey Routes in Idaho
| Blackft Res | 2 | 2001 | 1984 |
| Henry | 2 | 1979 | 1974 |
| Preston | 1 | 2007 | 1988 |
| Springfield | 1 | 1997 | 1970 |
| Mud Lake | 1 | 1994 | 1990 |
Snowy Egret Population Trend in Other States
alabamaarizonaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaillinoisindianakansaslouisianamainemarylandmassachusettsmississippimissourinebraskanevadanew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaoklahomaoregonrhode-islandsouth-carolinasouth-dakotatennesseetexasutahvirginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.