Roos in Multiple Breed Flock? Help!

[Denwendairy]

Hi All!
Purchased these birds as day old chicks just about 5 weeks ago. They were sourced from the University of Alberta Heritage Chicken Program and bought at Peavey Mart. We have 6 BR's(I think 4 hens, 2 Roos), 1 Sussex(think hen), 1 Brown Leghorn (roo) and 1 RIR( not sure but I think a roo). The BR's and Sussex are lovely but the other two will likely be re-homed.
I am aiming for a flock of hens, no roosters. Below are the pics of what I think are Roos! What do you think?

Roo in front, hen behind?

Thanks in advance for the help!

 

[Cyan Night]

Your guesses look correct

 

[Denwendairy]

Thanks for your input!
Was hoping to have fewer Roos but guess thats mother nature!