Sexing cuckoo maran bantam chicks

[muhelos]

Hey guys i'm having some trouble identifying the sex of my new bantams, we were told they were 6 weeks old when we got them nearly 2 weeks ago. We're not really sure what to look for to tell them apart and could use some help.

Here's some pictures: http://www.imgur.com/a/EXtcv

Thanks

 

[Dawns Funy Farm]

To me they all look like roos but i have never had that breed.They look to light in color and red on combs and waddles to be pullets at 8 weeks of age, sorry.They are very nice looking birds.

 

[muhelos]

Thank you for your help.
We actually have 7 of them (not all pictured) but they all look very similar. I think I will take a better photo of each one tomorrow as there are some differences between them (e.g. some have more a pinkish comb). It would be a shame if they were all roosters, they are quite adorable.

 

[TheCrazyClucker]

All roos.