1,2 and 5 are young pullets. I'd guess 4 to 4.5 months.
4 looks older. 6 months, maybe, although that is just a guess. If she's not laying now she soon will be.
They lay in their own time. 25 to 30 weeks is normal, but later isn't uncommon.
I think you will get eggs from the young ones within...
They're not great quality as far as coloring goes, but that doesn't matter if you just want blue eggs. I'd call them hatchery quality with the possibility that some could be Legbar type Easter eggers.
It is either what they call a Rainbow, which is a dual purpose hatchery hybrid, or an olive egger. I don't think it is a Legbar as it has no crest and the coloring is off for that.
I think they are all pullets. The one in the second picture is the one to watch, but even though it has a bit of a comb and the wattles are showing through, they are still smaller than what I would expect from a cockerel. Also, they are pale, not bright red. So watch it for a growth spurt but...
Yes, the crest may be one sign of it being male, but there's really nothing else right now. Crested breeds take time. You can't judge by the comb and bearded fowl don't have normal wattle growth either. I'd just wait and repost in around 13 weeks, when male feathering will start to come in on...
Looks like a satin silkie to me. Silkie x bantam cochin. Silkies are themselves usually bearded. I think it just stands out more because she is smooth feathered.
I think the hatcheries are breeding blue laced to splash laced, and that's why it's difficult to distinguish between the two, because all of the birds have lacing that is fairly pale.
A darker blue is usually preferred for other breeds, and that is created by crossing black to blue. But with...
Most of these look like mixes of mixes. I think most have Wyandotte genes, due to the faint lacing and some having rose combs. Several are barred, so probably a barred rock in the mix for some, too. There is an all red hen who probably has Rhode Island red in her mix. The last one does too, and...
It's looking like a cockerel to me, but the comb isn't so big that I would say it is definite. Keep a watch on the comb and wattles for growth and color in the next few weeks. If there aren't rapid changes during that time period then you have a pullet.
I wasn't sure if it was the same genetic mutation in both breeds, but I'm reading that it is. So that would make it a recessive gene in Hedemoras just like with Silkies.
The only problem I can see is that this breed is so rare. If you can find a seller who will guarantee silkie feathered...
3 is a definite cockerel. The rest are pullets.
5 must've had Silkie or Hedemora in its mix because it is silkie feathered. The Silkie gene is recessive, so the parents don't have to be Silkied themselves to pass it on, but both parents must carry the gene for it to happen.
It depends where they are from. If from a hatchery or store, it should be purebred even if not quite up to the standard. If it is from a backyard breeder then yes, it could well be a mix.
Is it a male? Probably, with that amount of black in the plumage. But not definitely. I would give it time.