I am(was) watching my buddy's chickens here in Reno, NV. He had three adult ladies in an enclosure with a coop in his backyard. He asked me to check in every few days to make sure they still had water. He has a 5gal waterer, appropriate to the 90-100F temperature of the area. I last checked on the girls on wednesday evening, around 5 or 6pm. When I went back to check around 1pm today (Friday,) I found the enclosure covered in feathers, and all three chickens appeared dead. The waterer was upturned on it's side. After gaining access to the enclosure i ascertained that one had been eviscerated, the other was dead (unable to figure out why) and the third, a banty silkie, was still alive, but not by much. She had some blood around her crest, and her eyes were shut and covered in shmutz. I pulled her out, and cleaned up her head. No significant injuries that I could see. She is unresponsive to sound, but reacts weakly to being handled. I tried squeezing some water into her mouth using a paper towel, and I did see some tongue action.
I've since brought her back to my place, and have her laid on her side. I have made up an electrolyte liquid using a 1/4 of the chick electrolyte package in two cups of water, I have been using a syringe to administer in 5cc increments. Her breathing seems more regular, but she is still comatose, her eyes won't open, she cannot support herself.
I'm hoping she is only massively dehydrated. But I am no expert, and have not had any experience with chicken emergency medicine. Any tips?
(To those that are wondering, the friend is in Alaska, and I have been unable to reach him yet.)
Thanks in advance for any help!