Hey all, I bought 5 leghorn "pullets" from a guy on craigslist to replace some hens that got eaten by a neighbors dog :-( They are 3-4 months old. 2 of them have big ol' floppy combs and 3 have very small combs that are just coming in. Is it a sure thing that the big floppy combs are roosters, or do I need to wait and see? Thanks for your help. I can post pictures if that helps.