Rooster or Hen?

[EmmaRainboe]

Boy!

 

[MysteryChicken]

RIRs are notorious for aggressive behavior. Only had 1 nice one.

 

[MysteryChicken]

It's a cockerel.

 

[Gray Farms]

What are the tells? I've been looking up ways to tell and have been unable to find anything definitive.

Comb development

 

[Johnny17]

Yep, boy

 

[Anne02]

It's a boy. And you may want to be careful if you have little kids. Some of my first chickens were RIRs, and we had one that we were sure was a rooster. But it turned out to just be an incredibly mean hen. We, (I), actually named her Meany Pants.