Reddit reviews Lafeber'S Nutri-Start Hand Feeding Formula For Baby Birds 11-Ounce Tub

First thing I would do is check to make sure it isn't on the floor of the cage for another reason. Gently pick it up and look for obvious injuries or signs of disease. Sitting puffed up with it head under its wing is usually a sign of something physically distressing to the bird, and its important to rule out other issues before assuming its lack of feeding. If the parents know there is something wrong with the chick they may have tossed it out, or be refusing to feed it for this reason. If the chick looks ok then I would place it back in the nest with the rest of the chicks. If it continues to jump out there is not much you can do but try hand feeding if the parents refuse to feed it. Usually the parents only feed it for a few weeks more after it fledges so you starting uni shouldn't be an issue, I think you will have enough time to wean it by them. The Lafeber's Nutri-start is the hand feeding formula I would recommend: https://www.amazon.com/Lafebers-Nutri-Start-feeding-formula-11-Ounce/dp/B0002ARFRY/ref=sr_1_1?ie=UTF8&qid=1521578012&sr=8-1&keywords=lafebers+hand+feeding
if you decide to go that route, but be sure you understand how to properly hand-feed the chick before jumping into it. Good luck!