Species · Arizona · BBS 2025 Release · 1966–2024
White-breasted Nuthatch Population Trend in Arizona
White-breasted Nuthatch in Arizona has surged: up 166% on the route-weighted index since 1970.
+166%Since 1970
33Routes In State
56Years
Notable White-breasted Nuthatch Trends in Arizona
long arc increasecomputed index
White-breasted Nuthatch has surged in Arizona: up 166% on the route-weighted index since 1970.
White-breasted Nuthatch Population Forecast in Arizona
If the recent trend holds, White-breasted Nuthatch in Arizona is projected to rise about 69% by 2029 — from 1.7 in 2024 to a central estimate of 2.9 (95% range 1.3–4.5). A 5-year backtest shows a typical error of ±71%, with 80% of held-out values landing inside the 95% band.
+69%Change by 2029
2.9Projected 2029 index
1.3–4.595% range
±71%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 2.8 | 1.2 | 4.4 |
| 2026 | 2.8 | 1.2 | 4.5 |
| 2027 | 2.9 | 1.2 | 4.5 |
| 2028 | 2.9 | 1.2 | 4.5 |
| 2029 | 2.9 | 1.3 | 4.5 |
White-breasted Nuthatch Survey Routes in Arizona
| Happy Jack | 30 | 2024 | 1977 |
| Sawmill | 24 | 2014 | 1988 |
| Tonto Vill. | 23 | 2021 | 1992 |
| Pinetop | 22 | 2022 | 1993 |
| Williams | 18 | 2019 | 1993 |
| Prescott | 17 | 2022 | 1974 |
| Sprucedale | 15 | 2023 | 1992 |
| Patagonia | 11 | 2024 | 1968 |
| Forest Lakes | 9 | 2024 | 1992 |
| Rucker | 6 | 2009 | 1993 |
| Aztec Peak | 6 | 1978 | 1974 |
| Portal | 5 | 2024 | 1975 |
| Flagstaff | 5 | 2022 | 1989 |
| Zeniff | 5 | 1984 | 1970 |
| Alpine | 5 | 2023 | 1992 |
| Black Mesa | 4 | 1995 | 1988 |
| Tsaile | 4 | 2023 | 1993 |
| Mormon Lake | 3 | 1975 | 1968 |
| Blue | 3 | 1990 | 1974 |
| Sunizona | 3 | 1997 | 1968 |
| Mt. Graham | 3 | 2023 | 1995 |
| Sunizona 2 | 3 | 2022 | 2002 |
| Carr Mtn | 3 | 2024 | 1985 |
| Dry Park | 2 | 2024 | 1992 |
| Cow Springs | 2 | 2017 | 1996 |
White-breasted Nuthatch Population Trend in Other States
alabamaarkansascaliforniacoloradoconnecticutdelawarefloridageorgiaidahoillinoisindianaiowakansaskentuckylouisianamainemarylandmassachusettsmichiganminnesotamississippimissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-carolinasouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.