Silkies are notoriously difficult but I'd bet this is a cockerel with a comb that size. HOWEVER... if you really want a silkie and want to be sure, keep the bird and wait for a crow or an egg.
I have s home lined up for him. I have four cockerels (almost positive) larger wattles and combs. And they all flare their neck feathers and fight among each other. I have one who matured a lot faster who already crows at 12 weeks. I live in the city and can’t have Roos. I do have 4 that I think are hens im going to hold on to. I just wanted a second opinion because this little guy is so sweet
Wattles + young age = cockerel. Once they get over 16 weeks or so wattles aren't a determining factor so much. At 11 weeks you've very likely got a cockerel.
No,wattles don’t determined gender,however length and color can detect male,escpecially in young chickens.Usually don’t see growth in combs and wattles till after eights weeks in pullets.By eight weeks cockerels usually are very red in that area and often wattles and combs are growing pretty big for the face.I don’t sex silkies but regular breeds usually are growing male fetahers by 11 weeks and that is the real answer,a wattles doesn’t determine,there are a lot of breeds with large combs and waddles at just four weeks and still turn out to be girls,very common for leghorn pullets to have big combs and wattles at a very young age.