I have all brown egg layers, RIR, Delaware,buff orp, & black australorps! Well they are 19 weeks and 2 are laying eggs. I know one of my buff is one of them and she laid a brown egg with dark brown specks on it now the other egg that's being laid is solid brown and long skinny eggs. Does it matter the breed vs egg shape and color? Like could I exspect all my buffs to lay that color?