Aggressive bird... hen or rooster?

[JBMpls]

Greetings all. This is my very first post other than the introduction page. My name is Ben, I live in Minneapolis, MN and my wife and I just got some chicks about 5 weeks ago. They were supposed to be a week old at the time. We'd ordered a Rhode Island Red, but when we got there they said they were out and that they'd give us one of another breed. We've been raising them all together in a brooder and now in a old dog cage we had. They seem to be doing well.

My question though is this: Does this sound like a rooster? This 3rd "hen" we got seems much more aggressive than the others. Right now at about 6 weeks her legs are thicker and orange-er than the others, her comb is much redder (the others are still yellow), and general demeanor is much more confident - when I stick my hand in the coop, she'll peck at it lightly where the other two run away.

Think this is a rooster? We can't have roosters based on our permit so I'd have to get rid of him if that were the case. How can I tell? Any help would be appreciated.

 

[Happy Chooks]

Some of the most stubborn, picky, finger biting chicks I've had have been by pullets. I have 1 now that has even tried to wing dance at me. (and yes, I'm 100% positive she's a girl)

ETA: Post a pic though and we can hazard a guess on sex.

 

[JBMpls]

Thanks for being willing to take a look!

Here are photos of my possible roo (I see they're called roos here on the site!) maybe hen. This is a Wynadotte. Recap: more aggressive, thicker legs, redder comb. What do you think? Do I have a rooster?

 

[BarkerChickens]

Looks like a roo to me.

 

[sourland]

A little early to tell, but I think it's a cockerel.

 

[BekahBear]

well, first off

second, i agree with the others..that chick appears to be a roo. it has a really big comb and wattles for its age

 

[Happy Chooks]

Yup, rooster. Sorry I couldn't say girl.