Sexing Buff Orpingtons

[ridgefire]

I have a bunch of 5 week old buff orpingtons. Can someone tell me what to look for in trying to determine male vs female. My white leghorn was easy, he has a very large red comb compared to the others. But my buffs are a different story all their combs look the same, feathers all look the same. Any help? I did order all pullets but I had 2 extra chicks, 1 extra leg horn and 1 extra buff. So I am assuming the extras were males.

Heres my boy

 

[bangor777]

Any pics of the buffs? Maybe they're all girls?

 

[ridgefire]

All I have is a group photo, I still cant tell the little buggers apart. When I get home I will try and post it.