D'uccle gender?

[drafthorserider]

OK - first question - these are all d'uccles right? I have never owned any before, so am also unsure as to their gender.
Is this called porcelain?
Same chick....any guesses as to gender?

-----------------------------------------------------------------------------------
The other 3 - maybe all roosters?
Seperate pics of their heads below..
The one in front in above pic.
The back left in group pic above (I am almost certain this is a rooster)
The back right in group pic above.

Thank you for looking.

 

[drafthorserider]

From looking at pictures of other people's d'uccles.... I am thinking all 4 might be roosters?

 

[Matt A NC]

All boys

 

[kylie]

They all look like roos judging from the combs

 

[drafthorserider]

Thank you for the input. It looks like I will try to find them all homes since they are the only D'uccles I have.