help with gender of my "red"

[PeachygirlGA]

I posted a pic a few weeks ago and everyone agreed that this was a male. However, it looks so different from my other males I'm just not convinced! He/she is about 10 weeks old. The other 2 males have the darker blue/purple feathers coming in but this one doesn't. The comb is much smaller and the legs are smaller. Seems to me that he/she walks around just like the other females.
What do you think?

 

[speckledhen]

Ten weeks? You're positive about that? Then, it's a cockerel.

 

[PeachygirlGA]

I got them when they were a week old, so they are 9-10 weeks. Does he look older or younger to you? And if you don't mind my asking, what are the things that make him look male to you? Is it just the comb development?

 

[donrae]

It's the comb, the wattles, (both size and color) and the thick legs and overall masculine look. He's just slower developing than your other boys. Ten week old red pullets have no comb to speak of.