Hen or Roo? New to Brown Leghorns

[mrwiest]

I just got these two new brown leghorns, and I am starting to wonder if one is a rooster. I have attached two pictures of them. The pictures aren't the best, and the chick in question decided to puff itself up for the picture. I am just a little thrown off by the already large comb compared to the other chick.
BTW - When I vent checked both of them, I would have said they were both hens, but I am not expert!

 

[theoldchick]

That first one is a rooster. Are you planning to breed them?

 

[sourland]

You have guessed correctly. You have one pullet and one cockerel.

 

[mrwiest]

Thanks for the fast response. No, I wasn't planning on breeding them. Is the comb the dead indicator that it is a rooster?

 

[Jenny28]

The comb, the big waddles and the very showy tail are dead give aways.

 

[sourland]

Early comb development plus the difference in feather coloration. He will eventually develop attractive reddish hackle and saddle feathers and a black tail and chest. She will retain the brown 'wild type' coloration.