Species · Arizona · BBS 2025 Release · 1966–2024
Willow Flycatcher Population Trend in Arizona
Willow Flycatcher in Arizona has surged: up 114% on the route-weighted index since 1998.
+114%Since 1998
5Routes In State
12Years
Notable Willow Flycatcher Trends in Arizona
long arc increasecomputed index
Willow Flycatcher has surged in Arizona: up 114% on the route-weighted index since 1998.
Willow Flycatcher Survey Routes in Arizona
Willow Flycatcher Population Trend in Other States
alaskaarkansascaliforniacoloradoconnecticutdelawaregeorgiaidahoillinoisindianaiowakansaskentuckymainemarylandmassachusettsmichiganminnesotamissourimontananebraskanevadanew-hampshirenew-jerseynew-mexiconew-yorknorth-carolinanorth-dakotaohiooklahomaoregonpennsylvaniarhode-islandsouth-dakotatennesseetexasutahvermontvirginiawashingtonwest-virginiawisconsinwyoming
Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.