I did a cull on a baby from my last batch from Cackle that was developing cross beak. After it was done. Like ten minutes after I almost passed out. I feel for you on this.
Unless you can hand feed 3 or more times a day they are not going to make it. Even then they may not because their tongues will dry out. My baby like that eventually died of cold January of this year because of malnutrition. Ten hr days at work ment I could only feed her twice a day.
For the...