Enlarged crop question - gave olive oil

[annbacon]

Update from question below -
I know have determined it is an enlarged crop - gave ollive oil and chiken vomited a great deal - semms smaller but chicken still seems lethargic - What to do next? thanks!

 

[canada-goose]

More oil?
I tried the oil method but it didn't seem to be working so we took the chicken to the vet. Sorry~I have very little experience with the oil method.
Offer the bird a little grit as well?