Because it is not a dragon but a GRIFFIN:
"The griffin, griffon, or gryphon (Greek: γρύφων, grýphōn, or γρύπων, grýpōn, early form γρύψ, grýps; Latin: gryphus) is a legendary creature with the body, tail, and back legs of a lion; the head and wings of an eagle; and sometimes an eagle's talons...