UPDATE - chicks stuck behind nest box for 2 days! help! - PICS

long story short, weve had a rash of raccoon break ins, my husband trapped them, and we thought it was over. well, 2 days ago 2 polish chicks went missing, thought they were gone, but we found them today stuck and smashed behind a nest box! they are still alive but look terrible. i will post pics when i have time. they are peeping and eating, but the wings are very droopy, and they look greasy, some feathers are missing, especially on top of their heads.  most concerning is that one has a huge ballon for a crop. the neck and chest and shoulder area look like they are filled with air! its soft and squeezale like a balloon, its just filled with air! what is this! will they die! is there something i can do!? they are 9 weeks old.
Note the huge balloon-like bubbles on their chest, shoulder, and crops. They're much bigger than the picture shows.

PICS:

anyone? i have them in a box inside, they are peeping but dont look good.

update with pics, bump

i did wash them after i took these pics, they look a little better, we wrapped them in towels and dried them. i couldnt believe how much filth was on them. those poor chickens, smashed like that for 2 days. they are still really puffy with air. never heared of a ruptured air sac, i hope it heals. one was found upside down and smashed flat, we thought it was dead at first, the other was crunched underneath, they have eaten a little and are still standing. ill keep them inside in a box untill they either heal or die. i hope they dont die, we only have 5 of these 'HALLOWEEN" chickens, as my daughter calls them. shes the one with blue fingernails in the pic, .............teenagers.

we actually have them sitting on top of a warm rice sock in the box, its lined with nws paper and they are in a dark and quiet room. there is food and water fot them if they want to eat, im hoping they look better in the morning, and that they have recovered from the stress, and the air sac. anyone ever have anything like this turn out well?