Hey everyone I'm curious and I'm wondering if this is common but I have 3 chicks. 2 pullets one brown one black. And one straight run! There all about a week and a half old and the the yellow straight run her/his comb is a lot bigger and a little red ALREADY! There only 1 and a half weeks old?? I'm almost positive that it's a rooster. but idk I hear not to just go by that? I wanna know what you guys think? and if you had something smellier to this happen to you??