Species · BCR 9 · BBS 2025 Release · 1966–2024
Northern House Wren In Great Basin
Northern House Wren in Great Basin has surged: up 390% on the route-weighted index since 1970.
+390%Since 1970
171Routes In Region
56Years
Notable Signals
long arc increasecomputed index
Northern House Wren has surged in Great Basin: up 390% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Northern House Wren in Great Basin is projected to rise about 28% by 2029 — from 3.5 in 2024 to a central estimate of 4.4 (95% range 2.9–6.0). A 5-year backtest shows a typical error of ±65.3%, with 60% of held-out values landing inside the 95% band.
+28%Change by 2029
4.4Projected 2029 index
2.9–6.095% range
±65.3%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 4.2 | 2.7 | 5.8 |
| 2026 | 4.3 | 2.7 | 5.8 |
| 2027 | 4.3 | 2.8 | 5.9 |
| 2028 | 4.4 | 2.8 | 6.0 |
| 2029 | 4.4 | 2.9 | 6.0 |
Routes In Great Basin
| Barnes Val | OREGON | 54 | 1987 |
| Magic Mtn | IDAHO | 52 | 2024 |
| Twisp | WASHINGTON | 40 | 2024 |
| Turnbull Nwr | WASHINGTON | 35 | 2023 |
| Ewan | WASHINGTON | 34 | 2019 |
| Iron Gate | CALIFORNIA | 33 | 2019 |
| Ellensburg | WASHINGTON | 29 | 2024 |
| Joel | IDAHO | 28 | 2024 |
| Lake Chelan | WASHINGTON | 25 | 2024 |
| Jarbidge | NEVADA | 23 | 2015 |
| Squirrel | IDAHO | 21 | 2024 |
| E. Mt. Adams | WASHINGTON | 21 | 2024 |
| Crowder Flat | CALIFORNIA | 19 | 2019 |
| Pomeroy | WASHINGTON | 18 | 2024 |
| Gifford | IDAHO | 16 | 2017 |
| Gardnerville 2 | NEVADA | 16 | 2018 |
| Macdoel | CALIFORNIA | 15 | 2019 |
| Badger Creek | OREGON | 15 | 2024 |
| Reardan | WASHINGTON | 14 | 2024 |
| Hackamore | CALIFORNIA | 12 | 2010 |
| Leavenworth | WASHINGTON | 12 | 2024 |
| Yakima | WASHINGTON | 12 | 2024 |
| Snowden | WASHINGTON | 11 | 2024 |
| Waitsburg | WASHINGTON | 11 | 2004 |
| Modoc Point | OREGON | 10 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.