“Cool Facts” About the Eastern Screech-Owl From All About Birds…

• Like most raptors, male Eastern Screech-Owls are smaller than females, and are more agile fliers and hunters. The female doesn’t hunt while on the nest; she and the chicks depend on food brought them by the male. Though the male is smaller, his voice is deeper than the female’s.
• Smaller birds can help you find screech-owls during the day. Listen for a commotion of Blue Jays, chickadees, and titmice—they may be mobbing a screech-owl (or other raptor), swooping around it with noisy calls. This can be enough of a nuisance to make the owl move on, and it alerts other birds to the predator’s presence and teaches younger members of the flock about the danger.
• Screech-owls regurgitate the bones, fur, and feathers of their prey in an oval pellet, usually once or twice a day. The ground beneath habitual owl roosts can be littered with pellets, and you can learn a lot from them about the owl’s diet. However, data from pellets may underestimate the number of soft-bodied animals, like worms and insects, the owl has eaten.
• Eastern Screech-Owls of the suburbs may fledge more young than their rural counterparts, probably because their predators are scarcer in the suburbs.
• Red and gray individuals occur across the range of the Eastern Screech-Owl, with about one-third of all individuals being red. Rufous owls are more common in the East, with fewer than 15% red at the western edge of the range. No red owls are known from southern Texas, although they occur further north in Texas and further south in Mexico. Intermediate brownish individuals also occur in most populations.
• Eastern Screech-Owl pairs usually are monogamous and remain together for life. Some males, however, will mate with two different females. The second female may evict the first female, lay her own eggs in the nest, and incubate both clutches.
• The Eastern Screech-Owl is known to eat a variety of songbirds, including the European Starling. Despite this fact, the starling regularly displaces the owl from nesting sites and takes over the hole to raise its own brood.
• Nestling screech-owls fight fiercely among themselves for food, and sometimes even kill their smallest sibling. This behavior, known as siblicide, is not uncommon among birds such as hawks, owls, and herons, and is often a result of poor breeding conditions in a given year.
• The oldest recorded Eastern Screech-Owl in the wild was at least 14 years, 6 months old when it was found in Ontario in 1968, the same province where it had been banded in 1955.