hello i am new to turkeykingdom i get catalogs from murray mcmurray, stombergs, burkett, meyer etc. they have blue slate as blue slate. a neighbor said his were tennessee blue slates and wondered why i mentioned heritage breed in my wording he thought it was a new name for blue slate on some poultry sites i see even more names am i missing something?? are there different veins and what do i need to know. clueless in western ky. thanks kyfarm