Roosters?

[FavreFarm]

I am almost positive these are all roosters, can someone confirm? Never had any Roosters before, this batch I got 4 that I am almost certain of. No clue what the breed is. The farm that I got them from told me Knoll? I tried looking that up and got nothing. They get picked on by all the other chickens 11 weeks old and they are huge!

 

[2 many chickens]

The first 3 definitely are. Pretty certain the last one is a male too.

 

[Gray Farms]

All males. And all look like crossbreds

 

[Ol Grey Mare]

All crossbred cockerels

 

[DebbieDee]

Yes they look like roosters. Not only the big comb and wattles but the tail feathers.Definitely roosters...