I heard one whinny at around 5 AM on Good Friday. It's a treat to hear, and I hope that it means we will have a nesting pair of these pigeon-sized little owls in the area.
Maybe I should put up a Screech Owl nest box, but there are so many trees with holes around here that it's probably not necessary. I have never had to chase them out of any of my Wood Duck boxes, but they are known to occupy them. I had neighbors who had a pair for years using their Wood Duck house on a tiny island in a pond (which seemed reckless of the owls, to me). You could see the owl's face, sometimes, sunning itself in the hole.
It's unusual to see them. Practically speaking, the only way you would know that they are around is by hearing them at night. These owls do not mind suburbia at all, and are probably breeding in all five boroughs of New York City.
These nocturnal birds are not rare everywhere east of the Rockies, and come in Red, Brown, and Grey races. They do not screech; they have a trill and a ghostly whinny. One more of those eery night-time sounds.
Here are their calls.
Read the detailed CLO entry on the Eastern Screech Owl here.