I have a rumpless hen who I noticed as she was drinking today that she had a large buildup of poop on her backside (first time for any of my birds). I was holding her by the feet for 10 or so minutes trimming the poo vent feathers and she vomited. OK, Did she simply loose her water that she just tanked up on because she was upside down for so long OR with the dirty bottom and vomit, is she sick? She seems healthy as the rest otherwise. Eating, drinking, clear eyes...... even after the episode. Please help!