Update Have now bred the above plus another Spruce Moose, Aurora Pegasus and I've got a Punk Skunk sitting on the nest. I'm in the same boat as JanineQuinty, I have a Spring Wing at level 10 but can't feed it 50 times. S8 have made obtaining the last of the Zodiacs very hard, considering the Spring Wing is only a rare.
Update. Finally got the Spring Wing breeding Used Twilight Troll and Panda.