It's hard to tell if he's mauve or grey because the cheek patches on recessive pieds aren't as visible as other birds. He's a YF 1 recessive pied and we can go with mauve unless you can see the cheek patches and tell if he's grey instead. Cute. I love recessive pieds.
Thank you! Mauve sounds right. His bluish grey areas are bluer than my grey budgie, but much greyer than my cobalt budgie. What do I know, though? Either way, I'm satisfied knowing he's a YF1 recessive pied (probably mauve).