Well, I am down to one F1 pullet- the male F1 froze to death, was resurrected, thawed, lived another week and died-heartbreaking. I tube fed him for that week and kept him with me most of the time, but he never got active after freezing. It was a miraculous thing to see him start to breathe again and live, and then killed me to lose him. He just didn't sleep with his mates that night, and was away from the heat. It was likely that something was wrong, because there's no reason he ought to have been cold or chosen not to move to the warmth.
I have 2 roos now- one Splash, one Calico. I have one F1 pullet and 3 Splash silkied. It's been a heartbreaking journey to have so many of them not make it. They aren't interested in eating incessantly like most chickens, so I have them on incredibly good feed, augmented with baby parrot formula mixed in half and half. That formula is very palatable, so they eat better with it and the probiotics and supplements help with the weight. I also have suet cakes with them at all times, as it appears they need more fat than other birds.
I'll be working more with these and my SQ Black Ameraucanas, but I'll also be mixing them with Mapuches and Nikkeis to try to get more South American blood in them that hasn't been refined to the extent of the Ameraucanas- much of the diversity of the original South American breeds from which Ameraucanas were distilled is gone, so I'm just going to diversify the genetics to get back some of that vigor.
I'm trying to get a Quechua pullet or two, as that would also deeply augment the eggs' coloring. We'll see what happens down the line! I think my girls are starting to pinken up, and the boys are finally crowing. The combs are very ripe-looking now!
Yay, Spring!!!