Are the birds in the last photo different individuals from the other pics? I'm seeing pointed saddle feathers on all but those in the last pictures. Those 2 are unclear to me. If I was butchering, I would wait on those. The others look like roos to me.
I use rubbing alcohol liberally all over hands and rub together, then wash twice with soap and rinse. Works very well for peppers, though by now (1 day later) you are over it.
That trick works for tree pitch and slug slime.
Partridge rock from Feathersite:
You see she has penciling all over, no salmon on the breast.
ETA: My vote is on the Welsummer, but I'm often wrong about these things. If it was a hatchery order, you could be seeing some variation.