what are they?

[pinkytyler]

what sort of silkies are these they have green colour around the neck at area.
are the hens or roosters???

 

[Chickenman76]

Black Roo

White Pullet

 

[ramirezframing]

the green should be a blue color and is their earlobes, all silikes should have a blue ear. Now sometimes it looks different as they are growing up

closer head shots would help