my first time into getting chickens I was lucky. I was new and hadnt found BYC yet. I bought 6 from an auction and didnt quarentine. Luckly all was ok. 2nd time went to a farm to buy chicks. The lady told me barred rocks and pullets. Came home with 5 males and 1 pullet and 4 were black sex link. I'm not really worried about SQ they are my pets that give me eggs, but yes do your homework. Like I said I was very lucky.