Tonight I came home from work to one sick hen standing by the front door, comb black, dribbling from her beak . She is a very social bird, quite old, off the lay, but good looking and enjoys human company. Anyway I googled in "hen sick" came to this site and read some posts from about two years ago; a thread started by "kiwi chick", that led me to check her crop. it was swollen and spongy so I massaged it and out squirted a cupful of brown fluid, followed by something fibrous that she gobbled back down before I could get it. I've left her with some bread and milk, after trying to get some crushed garlic and yoghurt into her, unsuccessfully. Thanks for all the advice.