Species · Arizona · BBS 2025 Release · 1966–2024
Anna's Hummingbird Population Trend in Arizona
Anna's Hummingbird in Arizona has surged: up 148% on the route-weighted index since 1982.
+148%Since 1982
32Routes In State
42Years
Notable Anna's Hummingbird Trends in Arizona
long arc increasecomputed index
Anna's Hummingbird has surged in Arizona: up 148% on the route-weighted index since 1982.
Anna's Hummingbird Population Forecast in Arizona
If the recent trend holds, Anna's Hummingbird in Arizona is projected to rise about 105% by 2029 — from 0.17 in 2024 to a central estimate of 0.35 (95% range 0.14–0.56). A 5-year backtest shows a typical error of ±78.2%, with 60% of held-out values landing inside the 95% band.
+105%Change by 2029
0.35Projected 2029 index
0.14–0.5695% range
±78.2%Backtest error
| Year | Projected index | 95% low | 95% high |
|---|---|---|---|
| 2025 | 0.33 | 0.12 | 0.54 |
| 2026 | 0.33 | 0.12 | 0.54 |
| 2027 | 0.34 | 0.13 | 0.55 |
| 2028 | 0.34 | 0.14 | 0.55 |
| 2029 | 0.35 | 0.14 | 0.56 |
Anna's Hummingbird Survey Routes in Arizona
| Cutter 2 | 5 | 2018 | 2018 |
| Red Rock 2 | 4 | 2019 | 2015 |
| Wikieup | 2 | 2017 | 2015 |
| Prescott | 2 | 2022 | 1980 |
| New River | 2 | 2009 | 1990 |
| Patagonia | 2 | 2022 | 1992 |
| Organ Pipe | 1 | 2021 | 2021 |
| Oatman | 1 | 2022 | 2011 |
| Quartzsite | 1 | 2015 | 1996 |
| Laguna | 1 | 2008 | 1974 |
| Dateland | 1 | 2021 | 1994 |
| Pomerene | 1 | 2022 | 2008 |
| Peña Blanca | 1 | 2024 | 2001 |
| Riviera | 1 | 2024 | 2010 |
| Skull Valley | 1 | 2021 | 1997 |
| Tonto Vill. | 1 | 2019 | 2017 |
| Bartlett Res | 1 | 2024 | 1997 |
| Araby | 1 | 2023 | 2000 |
| Red Rock | 1 | 2014 | 2010 |
| Redington | 1 | 2005 | 1995 |
| Willow Beach 2 | 1 | 2024 | 2016 |
| Sahuarita | 1 | 2021 | 2021 |
| Wickenburg | 1 | 2018 | 2017 |
| Hope 2 | 1 | 2017 | 2015 |
| Sunizona 2 | 1 | 2014 | 2014 |
Anna's Hummingbird Population Trend in Other States
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.