This is what's written in Arthur Spiderwick's Field Guide to the Fantastical World Around You about Griffins. The regal griffin (also spelled gryphon) is thought to be the offspring of an eagle (king of the sky) and a lion (king of all beasts). Its plumage ranges from cream to deep brown, yet some specimens have feathers with a deep, dark bluish sheen. While many griffins migrated to Eastern Europe from the Middle East in the thirteenth century, most remain desert-dwelling. They roost in high pl