So the last couple days I've noticed our hen Salt standing still with her feathers looking really full. Last night my girls were locking up the chickens and told me something is wrong with Salt. So I went out to take a look. When I got out there I noticed her panting, her vent moving in and out and up and down. Also, when we went to touch her she made no attempt to move. So we thought an egg might have been stuck. We put her bottom into a warm tub of water where she couldn't even hold her head up. We did that for 20 minutes. When we took her out and I started drying her off she jerked a few times and her necked feathers stood up and she passed in my arms. What could have been wrong? Please help! My girls were there too and they are heart broken too. She had the biggest comb that flopped over one eye!