Juniper Titmouse
Juniper Titmouse has increased: up 34% on the route-weighted index since 1970.
About the Juniper Titmouse
The Juniper Titmouse (Baeolophus ridgwayi) is a North American member of the Chickadees & Titmice (Paridae). In this analysis it is grouped with the forest birds.
- Size
- 4.5–6 in long (11–15 cm) — a tiny, active songbird (typical for the family)
- Habitat
- Woodlands and forest edges, including wooded suburbs and parks.
- Diet
- Insects and spiders gleaned from foliage and bark, with seeds and berries in season.
- Range
- Recorded on 215 Breeding Bird Survey routes across 9 states, most concentrated in the Southern Rockies / Colorado Plateau.
- Family
- Paridae · Forest birds
Notable Juniper Titmouse Trends
No notable trend signals for Juniper Titmouse. See the full index history below.
Juniper Titmouse Population Forecast
If the recent trend holds, Juniper Titmouse is projected to rise about 63% by 2029 — from 0.05 in 2024 to a central estimate of 0.09 (95% range 0.06–0.12). A 5-year backtest shows a typical error of ±37.6%, with 60% of held-out values landing inside the 95% band.
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.08 | 0.05 | 0.12 |
| 2026 | 0.09 | 0.05 | 0.12 |
| 2027 | 0.09 | 0.05 | 0.12 |
| 2028 | 0.09 | 0.06 | 0.12 |
| 2029 | 0.09 | 0.06 | 0.12 |
Where the Juniper Titmouse Is Detected
BBS routes recording Juniper Titmouse, sized by most recent count.
Juniper Titmouse Population Trend by State
| Arizona | -57% | 1970 | 36 |
| California | -61% | 1975 | 19 |
| Colorado | -42% | 1974 | 42 |
| Idaho | -82% | 1991 | 4 |
| Nevada | -71% | 1990 | 16 |
| New Mexico | -13% | 1970 | 36 |
| Oregon | insufficient data | n/a | 4 |
| Utah | +0% | 1986 | 55 |
| Wyoming | insufficient data | n/a | 3 |
Juniper Titmouse Population Trend by Region
Bird Conservation Regions are the ecological unit for trends.
| Great Basin | +47% | 1975 | 49 |
| Northern Rockies | -90% | 1977 | 7 |
| Southern Rockies / Colorado Plateau | -63% | 1970 | 119 |
| Shortgrass Prairie | -24% | 1987 | 6 |
| Sonoran and Mojave Deserts | -37% | 1997 | 3 |
| Sierra Madre Occidental | +5% | 1974 | 23 |
| Chihuahuan Desert | -15% | 1974 | 5 |
Juniper Titmouse Conservation Status
Our route-weighted index shows it up about 34% since 1970.
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. Trend is a route-weighted relative-abundance index, not an absolute population.