hens or roosters

[cdunmire66]

We have 5 white leghorn chickens and one of them is developing a red crown and seems to be dominant over the others (2nd from left). How do I know if this is a rooster?

 

[BantamFan4Life]

Usually when one chicken (when there all the same breed) has a bigger comb than the others it's more likely to be a roo.

 

[cdunmire66]

Since they were not sexed when purchased, it was a gamble. If only 1 of the 5 is a roo, that's ok. They are about 4 months old so I guess we should know soon enough for sure.