Species · Nevada · BBS 2025 Release · 1966–2024
Eared Grebe Population Trend in Nevada
Eared Grebe in Nevada has surged: up 20× on the route-weighted index since 1973.
20×Since 1973
8Routes In State
42Years
Notable Eared Grebe Trends in Nevada
long arc increasecomputed index
Eared Grebe has surged in Nevada: up 20× on the route-weighted index since 1973.
Eared Grebe Population Forecast in Nevada
If the recent trend holds, Eared Grebe in Nevada is projected to fall about 100% by 2029 — from 2.6 in 2024 to a central estimate of 0.00 (95% range 0.00–28). A 5-year backtest shows a typical error of ±184.4%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–2895% range
±184.4%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 28 |
| 2026 | 0.00 | 0.00 | 28 |
| 2027 | 0.00 | 0.00 | 28 |
| 2028 | 0.00 | 0.00 | 28 |
| 2029 | 0.00 | 0.00 | 28 |
Eared Grebe Survey Routes in Nevada
| Cortez | 51 | 2024 | 1971 |
| Bald Mtn. | 20 | 2024 | 1992 |
| Dobbin Creek | 14 | 2017 | 1970 |
| Ash Meadows | 2 | 2024 | 1993 |
| Gardnerville | 2 | 2003 | 2003 |
| Virgin Creek | 1 | 2015 | 1995 |
| Eureka | 1 | 2002 | 1996 |
| Illipah | 1 | 2013 | 1999 |
Eared Grebe Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.