That's one FINE looking cockerel right there

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He looks like he's starting to feel his oats!
Yeahhhh-- The tells for me are- on his wing- you can see the break thru in various colors.
Not only the lighter color patching, but also the beetle sheen too.
Unless particular breeds, it's been my experience this is a cockerel tell.
Swamp Princess is 100% correct on the saddles showing- but- with silkies & frizzles, it's MUCH harder to be sure of this because some won't have these tells because of how these feathers are.
He has a nice plump comb and ... I go back and forth, because looking at the shape of his face, he ALMOST gives the appearance of developing streamers..? And then I'm like... nahh... well maybe...
Could I be wrong.. ? Absolutely! And I hope I am. However, those are the 'tells' I pick up on when I look at him.
I bet when he is fully feathered out, he will really be something!