This cry is only given when the bird feels it is in great danger. Its primary mode of defense is to assume a concealment position. The bird will move in close to a tree trunk, narrow its eyes to mere slits, and allow it cryptic coloration to camouflage it. Diurnal raptors and great horned owls are the birds two main enemies.
Screech owls feed on a variety of prey.
Rodents and insects seem to be their preference, but they will eat squirrels and jays. They may store prey in or around nesting cavities for future use. These owls are highly adaptable and can find a home in nearly any habitat. However, they prefer to nest in a natural hollow of a tree. On average three owlets are fledged each year.