Polish and Silkies are often difficult to sex, especially Silkies. Polish cockerels will get a spikey top knot whereas the girls will be a more even, rounded 'boof'. Silkies you often have to wait until they crow or lay! My Orpington boys sprouted wattles and combs at 19 days old but it depends on the strain. Orpington pullets will barely have any comb, and it will be flesh coloured or light pink until they are older and their wattles will stay small and don't drop until they are nearing laying age. Your Pekin will let you know if it's going to be a boy or girl by 6 weeks old. Boys sprout very pink combs and wattles by then. Girls don't start growing a comb or wattles until 10-12 weeks old and it's more flesh coloured. There are specific breed threads where you can post pictures if you're unsure and have people familiar with that specific breed give their opinion, just check by the dates if they are still active. Or you can post photos on this forum and people will chime in. Good luck and hope that helps.
