Gender reveal? And breed?

[Debdeb70]

16 & 18 wks old(4-4.5 mo.) Littles are all from same Roo(Silverlaced Cochin) & all from either White Cochin hen or Buff Orpington hen?

 

[Granny Hatchet]

My guess would be the ones that have a bit of tail feathers would be orph. cochins tail goes down and very short.

 

[Lisa G.]

I think your white bird on the roost with the larger comb is cockerel. Tough to see feathers in some of the pics.

 

[RoostersAreAwesome]

Can you post pictures of the possible parents?