Her crop looks "Pendulous". It could turn sour. For a chicken that young, I would work on getting that corrected now to see if the crop will go back to normal size.Question:. The girl on the left always has an enlarged crop. It's soft, though. Any suggestions for why? She was a very sickly baby and nearly died twice. Kept having diarrhea and getting pasty butt. Didn't know if that info. might help explain her weird lopsided chest.
Is she still inside or have light all night?
I would check her crop at night, then re-check first thing in the morning before she eats/drinks (after she has slept in the dark all night). If the crop is still full then - I would treat for sour crop and consider making a bra as well, so you can get the crop to empty. Crop issues can take a while to resolve so just keep working at it.
I would avoid giving her things like scratch, grass, seeds, etc. until this is resolved. Have her eating her normal feed. A treat of eggs or something "soft" would be better. Make grit available free choice.
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/