Moulting chicken seems to have soft crop

[Mackie n chicks]

We have a gold laced wyandotte chicken around 3 years old. She's been of perfect health until last Sunday. A stoat tried to kill her - she survived but lost a lot of feathers. Since then nearly all her feathers have dropped out like she's gone into a sudden moult.

Also over the last two days she has started what appears to be soft crop. Her crop is remaining full and not emptying during the night. This is a big worry as she looks like she's losing weight very quickly and her health has obviously deteriorated due the moult. Has anyone any ideas on how to save Blaze? I feel like she survived the stoat and then die of the repercussions.

 

[Eggcessive]

Is she vomiting or does she have a sour odor around her face that could be sour crop? Is she eating and drinking? I haven't treated crop problems, but here are some articles to help you:
http://www.the-chicken-chick.com/2012/04/answers-from-chicken-vet-on-impacted.html
http://www.tillysnest.com/2012/01/crop-issues.html
https://www.backyardchickens.com/a/impacted-slow-and-sour-crops-prevention-and-treatments

 

[Mackie n chicks]

Thanks for the replies - I've not smelt any odour and yes she is eating and drinking. I will have a look at the links as soon as possible!

 

[Mackie n chicks]

problem is she is eating a lot as she feels starving all the time - I don't think any food or water is entering her stomach - It's very quickly become quite desperate!