Is this a rooster?

[Aldar43]

This chicken is 4 months old, I would like to know if it is a boy or a girl please.

 

[Brahma Chicken5000]

You have a Barred Plymouth Rock cockerel.

 

[Compost King]

Yep, its a rooster (actually cockerel but let's call him a rooster so he feels manly)

 

[Chick CJ]

If the hen and cockerel in the 2nd pic were hatched at the same time, then that is a really good example picture for future reference!
CJ

 

[Gray Farms]

Cockerel

 

[drumstick diva]

cockerel

 

[alexa009]

A Barred Plymouth Rock cockerel. Are you planning on keeping him?

 

[Frazzemrat1]

Cockerel

 

[Aldar43]

A Barred Plymouth Rock cockerel. Are you planning on keeping him?

Yes, I am planning on keeping him

 

[Ducksandchickens]

Cockerel