of year according to locality, with a clutch, averaging about four eggs, being laid in a nest in a tree hollow, old building or fissure in a cliff. The female does all the incubation, and she and the young chicks are reliant on the male for food. When large numbers of small prey are readily available, barn owl populations can expand rapidly.

König proposed that Tyto alba delicatula should be split off as a separate species, to be known as the eastern barn owl, which would include the subspecies T.