This crow’s attack on a hawk in Pismo Beach presents an example of aggressive bird behavior.
According to BirdWatchersDigest.com, such acts by crows are very common. “The crows are reacting to the potential threat the hawk poses as a predator, to the adult crows and their offspring,” the site says.
“The mobbing often serves to harass the hawk into leaving the area. Occasionally a mobbed hawk will turn the tables and attack and kill a crow.”