I’ve got two barred rocks and two cuckoo marans in the original flock. Good hens, I just want some varietyOk, Prostar, I got it figured... I think.
big yellow is buff Orpington
2 little grey Langshans with feathered legs
1 lovely little black Australorp
1 little Spangled Hamburg- yellow headed brown body (it is not a Silver, but a Golden Spangled Hamburg)
Your mystery chick is the big one you were expecting to be a Silver Laced Wyandotte. It could still be SLW, yellow legs and some white coming in are correct, but the comb is wrong. SLWs have rose combs, which look wide and flat. The chick in your pic has a single comb, but it still could be a Wyandotte, just with he wrong comb.
Honestly, I have not been impressed with hatchery Wyandottes of any color... they are not the best personality and lay small eggs. You might be better off with a Barred Rock or Cuckoo Marans or Domenique... did your TSC have any of those?

Thanks wishing
