Yes, that's the roo in question. Thank you so much for the thoughtful reply! I'll keep him!
The flock of chickens that was massacred, 1 roo/5 hens, was from Alchemist Farms. This BCM roo is from some eggs I found stashed away in the pen after the attack. So he is 100% from those birds.
The Blue Coppers pictured are a bit more mysterious. Their sire was also an Alchemist Farms rooster. Different from the one that was attacked. The hens I purchased locally years ago as young pullets. Two Splash and one blue copper. The lady I got them from hatched them from eggs purchased off eBay. She didn't remember the seller. No further info on them. The Blue Coppers pictured are from these 4 birds. I no longer have their parents, gave them away, but do have pictures I can share. I'll have to do some digging on my phone. I'll post them later.
Yes, they hatched at the same time as the roo, also 20 weeks, but from different pen of chickens.
https://www.alchemistfarm.com/
good news ,you can breed them together ,both cockerel and pullets have a correctbody type ,let see how the tails end up looking like .low or high .
yes if you have photos of the parent that will be great .
chooks man