4 week old RIR's Pullets or Cockerals?

[Kypris]

Hey we have 3 four week old RIR that we thought were all pullets, but the past week these two have really changed a lot! I was hoping you guys could help me out here!
This is Bean, we are thinking is a roo based off his comb and some of the feathering.



Then this is Bruce, who I was sure was a hen until I saw his feathering today and his comb really popped up the past week.


I know it may be a bit early to be determining sexes but it has been driving my family crazy. We are torn because want really want a rooster to watch over the flock we are raising, but we are afraid of the crowing and we don't even know if we can have a roo where we are! So let me know what you think on these two!

I would also say not to be afraid of having a too, as long as your are allows you to have one. Last year I learned how to use a "no-crow rooster collar" which greatly reduces the volume of crowing. I also learned how to handle my room to keep him tame so he keeps my hens safe but doesn't attack me or any humans who enter the yard. He just hit 1 year old and it's going well. If I mess with his girls too much he gets mad and vocalizes at me, but I don't get attacked. His crow is no louder than a hen who just laid an egg and is making that "ba-gawk" noise.