I have four pullets 6 1/2 months old. I have a Salmon Favorelle, a Rose Comb Leghorn, an Arucana and what I think is an Australorp. This morning I found a tinted egg in the nest. Two hours later, there were two white eggs in the nesting box. Could the Australorp be a Minorca. What age do they get their white spot on their head?? It doesn't have one yet, but the comb and wattles look too big for a Australorp hen. It hasn't crowed or showed any aggressiveness, so I don't think it's a rooster. I have found green tinted eggs, white eggs and occassionally an egg that looks faintly tan. Any ideas??