I have 12 chicks; 3 RIR, 1 Americauna (sp?) 4 black ones...don't know what breed and 4 salt and pepper looking ones that the feed store said were Sexlinks; well, actually they said the 4 black ones were Sexlinks as well but they look different...2 of the sexlinks have pronounced combs (which developed at about 6-8 weeks old) and those red dangly things while the other 10 do not. I assumed...key word assumed...that these two were roosters. They are the only 2 who chest bump each other and are more aggressive then the rest so it made sense to me that they were male. Then someone told me that all Sexlinks were female...and that just because their combs grew out doesn't mean they are roosters. I realize from the way this is written that it might look like I have no business owning chickens not knowing what gender they are...however, I have 12 spoiled chickens. I know how to feed and take care of them, I just don't know if they are boys or girls!!! Any advice on how to figure this out? If I took pictures and posted them would someone be able to tell?