Hi, I hatched 10 lavs from eggs I purchased online. All chicks were light grey with dark legs and beaks except one. He was mostly yellow, white legs and beak, with grey spot on head and back. Person I purchased from said he is a white mutant? and will carry the lavender gene. He is now 4 months, pretty bird but a darker grey than my lavs and still very light yellow legs and beak. Does anyone know if it's true he would carry the lav gene or should I cut him from my flock?