hen on dealth doors

So sorry to hear about your Rose   It's really hard to lose one of our feathered friends.

Do yourself and your flock a big favor and have poor Rose necropsied.  Most states have labs that will do them for free or for a small fee.  That way, you will know definitely what happened to Rose and whether or not you need to worry about everyone else.

If I had to take a guess... I'd say she either has mites, lice or worms.  Look her over really well - if you can rule out mice/lice, then I'd guess worms.  If you have others, I'd take immediate action depending on what you decide.  It may not be any of them, but it won't hurt them to dust and/or worm them.  Sorry to hear about your girl....

I always added a little heat lamp for their comfort...you might want to consider that.  I hate seeing them so sick :(  I try and think what I would like to be comfortable and heat is one thing I always add.

Will she eat?  If so, maybe some chicken food mixed with hot water and some vitamins??? 

Could she have coccidiosis?  You could treat her for that and see if it helps.  Corrid, from tsc works really well.  You mix it in water and since she is so weak, I use an eye dropper and dose them every few hours with how much I would think they would drink on their own.  Good luck...just some helpful suggestions in case she can be saved!

I have found that it really doesn't matter how old they are...sometimes, the coccidia count is higher in the soil and they get sick.  Yes, it is a disease found mostly in chicks because they haven't had a chance to build up resistance.  However, the older chickens can get sick if for some reason their immunity is down. 

Have you checked her for parasites?  You might want to do that also.  Just in case.  You could take a sample into the vet and have them check and see what's going on.  For any external critters, there are several ways to get rid of those. 

Good luck with Rose and keep us posted!