Thanks for the update. Hope she continues to get better and better.
I've got an opinion to offer on your rooster, but please don't take it as an attack on you or whoever bred him, since it is in fact an opinion on the intensive cage-breeding industry rather than anybody else. People do what they believe is best or harmless but all too often we fail to see the warning signs of potential for harm. It takes a few generations to solidly cement a bad behavioural trait into an animal, but for example with one rooster who has turned violent, a percentage of his offspring will be violent too, before it is even a trait you can count on his particular genetic strain of descendants as possessing. (Inheriting/passing on etc).
If it were my rooster who had harmed a hen deliberately I would cull him. I don't accept that behaviour, it is not natural. Contrary to popular belief, in the wild they are more likely to drive an injured or sick bird away than to try to kill it. It makes no sense to potentially catch its illness by drawing its blood, nor to waste valuable energy to destroy an animal that will fall to predators soon anyway. It makes sense to be as far away as possible from that bird. If chooks culled every other sick or hurt chook they found they too would fall to the predators. The same is true for roosters being excessively violent with eachother; as with the vast majority of males of all species, a lot of ritual body language exists and is employed to avoid any serious expenditure of energy, and fights that draw blood or cause injury are uncommon. Fights to the death are rare. People excuse violent chook behaviour on it being 'natural' or 'how it is in the wild' when in fact it is not natural, it's how it is when you cage and incorrectly feed and improperly socialize and interfere with in every possible way and then breed on the damaged chooks that result. The behaviours you described are normal now, but not natural. They can be bred out, and should be. But that involves culling aberrant, violent individuals.
We have taken birds from their natural environment and restricted them physically and nutritionally, and bred from the damaged, mentally aberrant offspring that resulted from that situation. That's where the common traits of violence emerge; they are not natural in the wild. Roosters in the wild never harm hens. It is mankind's fault chooks ever came to view eachother as food or roosters ever became violent to hens. Chick-on-chick cannibalism is one of the horrible examples of what happens when people think you can raise an animal in utterly abnormal circumstances on a totally artificial diet.
No matter how special a rooster's genes are or how pretty he is, once he hurts a hen, he's economically invalidated himself. The same is true of baby killing hens. Or cannibalistic chicks, or violent adults. For the sake of every other living animal that shares the same address, I cull violent individuals, and the remaining ones breed calm and kind chooks. You may not know this, but it is actually not uncommon for a chook's reaction to another chook being hurt or sick to be cuddling up to it and putting a wing over it. Once intensively caged for a few generations chooks are demented enough to prefer to kill than cuddle.
