The idea is that the Leghorns lay pure WHITE eggs,
so crossing with Aruacana, the next generation should lay pure BLUE eggs.
(The green eggs are caused by crossing Aruacana with various shades of brown egg layers)
Oh O.K thats interesting Ive got some RIR (cock) x Lav Araucana's (hens) ferile eggs under a broody so they will lay green eggs.