European Starling (Sturnus vulgaris) ホシムクドリ
The European Starling is native to Eurasia and introduced around the world. They are common in Arizona but usually not all black. they usually show some iridescent blue green and or white spots. They do appear all black sometimes. There is similar Spotless Starling that is all black, but it is found around Spain.
This Starling was in Kingman. Arizona 2012