Species · BCR 9 · BBS 2025 Release · 1966–2024
Rock Wren In Great Basin
Rock Wren in Great Basin has surged: up 236% on the route-weighted index since 1970.
+236%Since 1970
219Routes In Region
56Years
Notable Signals
long arc increasecomputed index
Rock Wren has surged in Great Basin: up 236% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Rock Wren in Great Basin is projected to fall about 17% by 2029 — from 4.5 in 2024 to a central estimate of 3.7 (95% range 1.7–5.7). A 5-year backtest shows a typical error of ±31%, with 100% of held-out values landing inside the 95% band.
-17%Change by 2029
3.7Projected 2029 index
1.7–5.795% range
±31%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 3.6 | 1.7 | 5.6 |
| 2026 | 3.7 | 1.7 | 5.6 |
| 2027 | 3.7 | 1.7 | 5.7 |
| 2028 | 3.7 | 1.7 | 5.7 |
| 2029 | 3.7 | 1.7 | 5.7 |
Routes In Great Basin
| Buchanan | OREGON | 36 | 2024 |
| Blitzen | OREGON | 35 | 1993 |
| Catlow Rim | OREGON | 35 | 2024 |
| Blizzard Gap | OREGON | 33 | 2024 |
| Bodie | CALIFORNIA | 31 | 2024 |
| Bald Mtn. | NEVADA | 31 | 2024 |
| Big Pine | CALIFORNIA | 26 | 2024 |
| Dorris | CALIFORNIA | 24 | 2019 |
| Bly 2 | OREGON | 24 | 2024 |
| Harney Lake | OREGON | 23 | 2024 |
| Magic Mtn | IDAHO | 20 | 2024 |
| Blitzen 2 | OREGON | 20 | 2024 |
| Meadow Vally | NEVADA | 19 | 2024 |
| Paisley | OREGON | 17 | 2024 |
| Likely | CALIFORNIA | 15 | 2024 |
| Fish Creek | NEVADA | 15 | 2021 |
| Peplin Mountain | UTAH | 14 | 2024 |
| Sand Pass | NEVADA | 13 | 2024 |
| Adrian | OREGON | 13 | 2021 |
| Virgin Creek | NEVADA | 12 | 2018 |
| Barnes Val | OREGON | 11 | 1987 |
| Warner Vally | OREGON | 11 | 2024 |
| Crooked Riv. | OREGON | 11 | 2024 |
| Ranchogrande | NEVADA | 10 | 2024 |
| Oreana | NEVADA | 10 | 2003 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.