When i got Bobwhite eggs ordered by mail, i was shocked to see only 1 come out.
if you're wondering how to raise poultry single you've come to the right place!
1. get a mirror, it shows their reflection, and in their eyes, another bird.
2. get a plushie, it acts as the mother.
3. turn on a video with adult bird noises (their species) to comfort them.
4. turn on forest noises.
5. come see and handle it every day, it gets them comfortable to humans.
6. get some other birds such as,chicks or more quail.
7. Give them a Heat Pad,then place it in the cage, it gives the chick something to nuzzle.
8. put pictures of their species on the sides.
9. my quail thought the cat was it's mother (we kept their relationship with a wall between.)
This worked for me, hope it helps out you!
(btw this websites great!!!)