Impacted Crop- help!

[DillyDilly]

- friend of mine just told me that one of her teenage roosters is ill, probably an impacted crop. Does anyone have any advice on what to do to help it pass?

 

[Eggcessive]

Here are a couple of threads that may be helpful:
https://www.backyardchickens.com/ar...w-to-know-which-one-youre-dealing-with.73607/

https://www.backyardchickens.com/ar...d-sour-crops-prevention-and-treatments.67194/