How old are they?
Those "cuckoo" birds aren't orpingtons at all. I don't know what they are, but that body type is not orp. They're long, lean and leggy, the opposite of an orpington.
I think I'm seeing alot of roosters, but will wait for guesses pending age of the birds.
Yeah those cuckoo ones threw me too. I have some Marans that are the same size, but these obviously aren't Marans either. Some sort of crossbreed? They came from a fellows house who sells only Orps. Anyhow, they were all born around the first week of June, last few days of May at the earliest.
That they do.Well they do look a lot like Black sex link roosters.
I was worried about that. What luck! Alas, I guess I will be eating a lot of soup this Winter if nobody wants them. I can't justify feeding 7 huge roosters, they go through lots of feed.From their age I wold say that they are all roosters except for your lavender pullet.