Owls in Roman Mythology

In early Rome a dead Owl nailed to the door of a house averted all
evil that it supposedly had earlier caused. To hear the hoot of an Owl
presaged imminent death. The deaths of Julius Caesar, Augustus, Commodus
Aurelius, and Agrippa were apparently all predicted by an Owl.
"...yesterday, the bird of night did sit Even at noonday, upon
the market place, Hooting and shrieking" (from Shakespeare's "Julius
Caesar")
The Roman Army was warned of impending disaster by an Owl
before its defeat at Charrhea, on the plains between the Euphrates and Tigris
rivers.
According to Artemidorus, a second Century soothsayer, to
dream of an Owl meant that a traveller would be shipwrecked or
robbed.
Another Roman superstition was that witches transformed into
Owls, and sucked the blood of babies.
In Roman Mythology, Proserpine (Persephone) was transported to the
underworld against her will by Pluto (Hades), god of the underworld, and was
to be allowed to return to her mother Ceres (Demeter), goddess of agriculture,
providing she ate nothing while in the underworld. Ascalpus, however, saw her
picking a pomegranate, and told what he had seen. He was turned into an Owl
for his trouble - "a sluggish Screech Owl, a loathsome bird." (Names in
brackets indicate the Greek names for the same
Gods)