"Hagrid'll be getting some any time now."
     -- Harry Potter, scribbled in his copy of Fantastic Beasts and Where To Find Them

The Bestiary is an alphabetical encyclopedia of the creatures of the Wizarding World, both magical and non-magical. Some of these creatures have separate pages about them as well.

related resources
   other intelligent species
   creatures by type
   Dark Creatures
   Atlas of Magical Creatures
   Department for the Regulation and Control of Magical Creatures

resources for specific creatures
owls
dementors
dragons
ghosts
goblins
blast-ended skrewts
house-elves
Phoenix
unicorns
Crookshanks