The genus
Tyto was introduced in 1828 by the Swedish naturalist
Gustaf Johan Billberg with the
Tyto alba as the
type species. The name is from the
Ancient Greek tutō meaning "owl". The barn owl (
Tyto alba) was formerly considered to have a global distribution with around 28 subspecies. In the list of birds maintained by
Frank Gill,
Pamela Rasmussen and David Donsker on behalf of the
International Ornithological Committee (IOC) the genus is now split into four species: the
western barn owl (
Tyto alba) (10 subspecies), the
American barn owl (
Tyto furcata) (12 subspecies), the
eastern barn owl (
Tyto javanica) (7 subspecies) and the
Andaman masked owl (
Tyto deroepstorffi). This arrangement is followed here. Support for this split was provided by a
molecular phylogenetic study by Vera Uva and collaborators published in 2018 that compared the DNA sequences of three mitochondrial and one nuclear
loci. This split was eventually adopted by other taxonomic authorities such as the
American Ornithological Society and the
Clements Checklist of Birds of the World maintained by members of Cornell University in 2024, but has yet to be accepted by the list maintained by
BirdLife International that is used by the
International Union for Conservation of Nature. The cladogram below is based on the 2018 phylogenetic study. The
Andaman masked owl (
Tyto deroepstorffi) and
Itombwe owl (
Tyto prigoginei) were not sampled. The
Manus masked owl (
Tyto manusi) was embedded in a clade with subspecies of the
Australian masked owl. •
Tyto richae (Early Pliocene of South Africa) •
Tyto sp. 1 •
Tyto sp. 2 ;Late prehistoric extinctions usually known from
subfossil remains: •
Mussau barn owl (
Tyto cf.
novaehollandiae) found in
Mussau •
New Ireland greater barn owl (
Tyto cf.
novaehollandiae) found in
New Ireland •
New Ireland lesser barn owl (
Tyto cf.
alba/aurantiaca) found in New Ireland •
Tyto antiqua (Late Eocene/Early Oligocene of Quercy? - Early Miocene of France) was a barn owl of the prehistoric genus
Prosybris; this
taxon might be a
nomen nudum, as the species was originally described in
Strix, this requires confirmation • "TMT 164", a distal left
tarsometatarsus of a supposed
Tyto from the Middle Miocene Grive-Saint-Alban (France); might also belong in
Prosybris, as it is similar to
Tyto antiqua ==Description==