Species · BCR 16 · BBS 2025 Release · 1966–2024
Northern House Wren In Southern Rockies / Colorado Plateau
Northern House Wren in Southern Rockies / Colorado Plateau has surged: up 166% on the route-weighted index since 1970.
+166%Since 1970
174Routes In Region
56Years
Notable Signals
long arc increasecomputed index
Northern House Wren has surged in Southern Rockies / Colorado Plateau: up 166% on the route-weighted index since 1970.
Forecast
If the recent trend holds, Northern House Wren in Southern Rockies / Colorado Plateau is projected to rise about 32% by 2029 — from 4.4 in 2024 to a central estimate of 5.8 (95% range 4.1–7.5). A 5-year backtest shows a typical error of ±35.7%, with 40% of held-out values landing inside the 95% band.
+32%Change by 2029
5.8Projected 2029 index
4.1–7.595% range
±35.7%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 5.6 | 3.9 | 7.3 |
| 2026 | 5.7 | 3.9 | 7.4 |
| 2027 | 5.7 | 4.0 | 7.4 |
| 2028 | 5.8 | 4.0 | 7.5 |
| 2029 | 5.8 | 4.1 | 7.5 |
Routes In Southern Rockies / Colorado Plateau
| Yampa | COLORADO | 35 | 2023 |
| Ragged Mtn. | COLORADO | 35 | 2019 |
| Uncompahgre | COLORADO | 34 | 2024 |
| Deadman Rd. | COLORADO | 31 | 2024 |
| Groundhog Rs | COLORADO | 31 | 2024 |
| Owl Creek Pass | COLORADO | 26 | 2024 |
| Flattops | COLORADO | 23 | 2019 |
| Thomasville | COLORADO | 19 | 2018 |
| Cebolla | NEW-MEXICO | 19 | 2023 |
| Beck | UTAH | 19 | 1987 |
| Dunckley Pas | COLORADO | 18 | 2024 |
| Ant Flat-Ogden Can | UTAH | 18 | 2023 |
| Lost Cr. Res | UTAH | 18 | 2018 |
| Buford | COLORADO | 17 | 2024 |
| Gold Hill | COLORADO | 17 | 2012 |
| Dry Park | ARIZONA | 15 | 2024 |
| Pagosa Spgs | COLORADO | 15 | 1982 |
| Fox Creek | COLORADO | 15 | 2024 |
| Yellowjacket Pass | COLORADO | 15 | 2024 |
| Moon Lake 2 | UTAH | 15 | 2023 |
| Aspen | COLORADO | 14 | 2024 |
| Parlin | COLORADO | 14 | 2023 |
| Buffalo Park | COLORADO | 14 | 2023 |
| Navajo Lake | UTAH | 14 | 2024 |
| Beck 2 | UTAH | 14 | 2018 |
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.