Ozzy is clearwing as well as opaline spangle. He is a really beautiful bird
If Ducky has black eyes she is a double factor spangle
Angle is an opaline sky blue
Xena is a recessive pied light green
If Ozzzy was mated to Ducky you'd get spangle males and opaline spangle females, probably all green series. If he was mated to Angel you'd get opalines and opaline spangles in green series, but if he is split for blue you get blue series as well. If he was mated to Xena you'd get normal males, spangle males, opaline females and opaline spangle females, no recessive pieds unless Ozzy is split for rec pied.
To get clearwing opaline spangles like ozzy his mate needs to be carrying a clearwing gene. The ideal would be an opaline clearwing