What does his crop feel like? Is it hard or squishy.
You need to read the articles you are skipping about impacted and sour crop. Those are relevant - stuff came out of his mouth most likely because his crop is full because it is impacted.
To empty it you need to clear the blockage. Coconut oil and massage is the way to start but you need to be careful that you don’t push stuff upwards where he could aspirate.
There are some good articles on this on the site I am not able to link right now but they should come up if you search articles for impacted or sour crop.
You need to read the articles you are skipping about impacted and sour crop. Those are relevant - stuff came out of his mouth most likely because his crop is full because it is impacted.
To empty it you need to clear the blockage. Coconut oil and massage is the way to start but you need to be careful that you don’t push stuff upwards where he could aspirate.
There are some good articles on this on the site I am not able to link right now but they should come up if you search articles for impacted or sour crop.