Thanks for replying, the cockateils are growing normally and the parents are feeding them on millet both red and white and striped, black, white, hearts of sunflowers. they also have iodine block and millet sprays with green-food available and cuttlefish bone and grit. they are bedded on wood shavings. yes they are dying in the nest, i don't attempt to hand feed them as i have never had any success. they have been all aviary bred and as far as i know they are not related. the parents mutation are pearl pied and the cocks are normal greys. The nest box size is 10'' x 10'' x 25''.
try posting a new thread asking for help with your problemHow about somebody who is having the same problem. Lost 5chicks in the last 2days. They do not have grit in their diet. I had 13, now they are slowly fading. Ages are around 1-2 weeks for me. Same set-up though. Successfully bred 2 years ago with the same set-up and cockatiels, Now they are looking after chicks, they die with some food in their crop, but they chicks just die. No reason, Just go suddenly really weak and dead very quickly. Not able to take them to avian vet due to time to get there with them, they'll be dead by the time i arrive.
I am on the verge of giving them up and stopping breeding cockatiels all together which I do not want to do, just not fair for them to have chicks which die all the time.
Nest substrate is wood-chippings designed for bedding, non-toxic stuff and dust free.
Am going to worm them now and see if that helps the current survivors.