Listless hen with bluish comb

[chicChickChick]

Found my two 2 year old ISA hunkered down in the corner of the coop. She’s super listless (not bothered by me picking her up and she usually is not a fan). Comb limp and bluish. Belly soft, vent clear, no eye or nose discharge or weird breathing.

Where can I look up symptoms for a diagnosis?

Any BYC community ideas?

TIA

 

[thecatumbrella]

Where can I look up symptoms for a diagnosis?

https://poultrydvm.com/views/symptoms.php

Sorry I can't be more help, but this is the tool I use in a pinch.