I just got four baby chicks (now 2 weeks old) from a feed and grain store; 2 Black Australorps and 2 Buff Orpingtons. They were one week old when I picked them up and only noticed when I got home and looked at them closely that one of the black chick's tail is different than the others. Attached is a picture showing the two tails of the Black Australorp. Does anyone think that the tail on the right could possibly be a roo? The tails of the 2 Buffs and the 1 Black Australorp (on the left) are identical in that they are more fuzzy/fluffy and the one on the right is more together and fuller looking. These are "layers" but I know that it's not always 100% accurate. Thanks for your input.