Corrected entry: Hedwig is supposed to be a female snowy owl, but only male snowy owls are completely white. The female has brown and/or black spots on her in order to blend in with the nest and trees; the males are white so they blend in with the snow as they hunt animals.
Andreas[DK]
10th Oct 2002
Correction: As mentioned in another correction, a completely white female owl is not that unlikely in a world of magic with dragons and whatnot.
Andreas[DK]