Bill Weasley got 12 O.W.Ls.
FredDefense Against the Dark ArtsCharmsTransfigurationGeorgeDefense Against the Dark ArtsCharmsHerbology (speculated)See scifi.stackexchange.com's "Which OWLs did Fred and George Weasley achieve?" for the explanation.
Many Witches and Wizards keep owls. It's one of the traditional pets at Hogwarts. For example, the Weasley owl is Errol and Ron Weasley's owl is Pigwidgeon.
Harry's owl was called Hedwig. The Weasley's had an owl called Errol. Ron had an owl called Pigwidgeon. (Named by Ginny Weasley). Percy's owl was called Hermes. Wizards and Witches could name their owls whatever they wanted.
By digging on the sand
There are several owls in Harry Potter.The most notable owl is Harry's which is called Hedwig.In the book the Weasley family have three owls throughout the series; Errol is the elderly family owl (also seen in the film), Percy's owl is called Hermes (not seen in the film), and Ron's owl is Pigwidgeon, also known as pig for short There are also lots of other owls belonging to Hogwarts students, such as Draco Malfoy's eagle owl, but the names of these owls are unknown.
there are 40 owls in greenland
Owls to Athens has 382 pages.
No there are many others
Yes, many smaller species of birds, including smaller owls, are prey food for owls.
Cats & owls are alike in many different ways.
There are 134 species of owls worldwide.
Owls have eye LIDS, but no eyebrows. Being birds, they do not have hair, but feathers.