[CattinJ]

I now have another ill chook...this one has a very hard crop even first thing in the morning.  I don't think it's sour crop as there's no smell, but she's very skinny and this morning her comb was tinged slightly blue.
Does anyone have any advice?

Cat

[joyfull]

if her crop is still full then it sounds like she has an impacted crop.
Take a look here to see how to treat it.

[CattinJ]

Thanks Joyfull, sadly she was put down by the vet yesterday as she deteriorated very fast.  He did  PM and I was devastated to find it could have been my fault.  I've been using a hemp based sawdust like substance in the nest box for a  few months and she'd eaten so much of this it had created a blockage.  I now have 2 other bids I'm seriously worried about.
I'm going to buy different bedding today and have them on a mushy diet with cod-liver oil in it.

[joyfull]

try dust extracted shavings for their bedding. I always use hemcore or rapport for bedding and never had a problem (used it for a few years now) - yours must have just liked the taste of it.