KL115: I just viewed your video, and your chick is showing "wry neck" or Vitamin E encephalopathy signs. The fact that it is still alive, and obviously eating is a very good sign. It's possible that it may make a full recovery with some supplemental vitamins, and may need some additional supplementation down the road, but it's worth the effort, as long as you don't let it play in the gene pool! Nutri-drench is the best way to get some good supplementation into the chick. You may need to hand feed it if you don't see it filling it's crop. If you make the feed into a gruel, you can get a bit of vitamin E into the feed. An other option is plain oatmeal prepared to an easy to eat consistency. I had a Vit E encephalopathy chick that was comatose when I started treating it. I started with a bit of Vitamin E, and gave it twice/day. I then added Nutri-drench, and just a tiny bit of selenium... (a few grains scratched off the side of a pill). I used "baby bird hand feeding formula" (mixed to a thick milkshake consistency) because this chick was too ill to eat. I mixed the supplements with the formula, wrapped the chick in a towel, and dribbled some of the formula into the crook of my finger, which I then cupped under the chick's beak. The warm liquid encouraged the chick to "drink" it. Initially, the chick was too weak to stand. I fed it every couple of hours, and had to massage the crop to get it mobilized. On day 2, the chick could stand a bit. On day 3, it was able to stand and drink it out of a spoon. On day 4, it wanted to perch on my finger. I continued treating for about a week and a half, until I couldn't catch it any more. The damage had already been done to it's internal organs, and it developed CHF and had a severe scoliosis. But your chick is in much better shape, and should fare better.
hildar: I agree with you. It's the vocal chicks that are most at risk of unexplained death.