Species · Nevada · BBS 2025 Release · 1966–2024
Mountain Chickadee Population Trend in Nevada
Mountain Chickadee in Nevada has collapsed: down 91% on the route-weighted index since 1981.
-91%Since 1981
16Routes In State
39Years
Notable Mountain Chickadee Trends in Nevada
long arc declinecomputed index
Mountain Chickadee has collapsed in Nevada: down 91% on the route-weighted index since 1981.
Mountain Chickadee Population Forecast in Nevada
If the recent trend holds, Mountain Chickadee in Nevada is projected to fall about 100% by 2029 — from 0.21 in 2024 to a central estimate of 0.00 (95% range 0.00–1.8). A 5-year backtest shows a typical error of ±187.6%, with 100% of held-out values landing inside the 95% band.
-100%Change by 2029
0.00Projected 2029 index
0.00–1.895% range
±187.6%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.00 | 0.00 | 1.8 |
| 2026 | 0.00 | 0.00 | 1.8 |
| 2027 | 0.00 | 0.00 | 1.8 |
| 2028 | 0.00 | 0.00 | 1.8 |
| 2029 | 0.00 | 0.00 | 1.8 |
Mountain Chickadee Survey Routes in Nevada
| Jarbidge | 7 | 2015 | 1997 |
| Hawthorne | 7 | 2001 | 1997 |
| Eureka | 4 | 1992 | 1992 |
| Gardnerville 2 | 3 | 2024 | 2024 |
| Ranchogrande | 2 | 1999 | 1991 |
| Humboldt Nf 2 | 2 | 2024 | 2024 |
| Willis | 2 | 2019 | 1988 |
| Comins Lake | 1 | 2016 | 2006 |
| Humboldt Nf | 1 | 2014 | 1994 |
| Fish Creek | 1 | 2018 | 1997 |
| Austin | 1 | 2012 | 2010 |
| Walker Can | 1 | 2024 | 1968 |
| Mizpah | 1 | 2000 | 1993 |
| Ruby Valley | 1 | 1997 | 1997 |
| Illipah | 1 | 2013 | 1991 |
| Gardnerville | 1 | 1996 | 1996 |
Mountain Chickadee Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.