I just noticed the video link, and I can't really tell what that is. It would be best to take the chick out of the nest temporarily and inspect its whole body, and take some good pictures of the injury. The moving camera makes it hard to see what's going on.
The photos in which he is in my hand are of today.
The one in which he is in nestbox are of tomorrow.
Keep a very close eye on him if they do more damage to him please pull him for hand rearing. When you've been having a look at him have you been making sure both parents are out of the nest first? They can accidentally harm the baby when they leave the nest in A panic.
__________________ Cockatiels: 1 pearl, 3 normal grey, 1 whitefaced cinnamon pearl, 1 pearl pied Red rump parrot: 1 normal cock and 1 blue hen Java sparrows: 6 normal, 1 lightly pied Canaries: 1 yellow, 1 brown/orange, 1 brown/yellow, 1 silver, 2 yellow dimorphic Zebra finches: 1 white, 1 black cheeked, 1 normal, 1 fawn Chinese painted quail: 1 normal, 1 white, 1 heavy pied Diamond dove: 2 normal, 1 pied, 1 white
That doesn't look like plucking to me. I think it's possible that he was bitten several times. Does it seem like there are bruises on the upper part of the wing?
Unfortunately the little guy could not survive. He died on 18th day. He was severely plucked by his parents as it is pretty obvious from the pictures I have attached. You can see his two flight feathers. I saw pins of feathers in the nestbox as well !
I was not at home as I had to leave for official work to other city otherwise I would have handfed him.
The baby was very healthy when he was born but he was underfed by parents as well. I believe its the mom who did the damage. I saw her eating poop today as the blood she was drinking of baby is no more there !
The nestbox has been removed and they will be allowed to breed after approx 6 months. In the meanwhile, I am working on the hens diet now !