Thanks for your help.
I had a look at her throat, I don't think it looks abnormal. No mites that I can see, as for her crop I'll check it tomorrow morning.
Hi all, I've got a chicken with some breathing issues going on, I've listed everything of note below.
Name: Trooper
Light Sussex hen
Age approx. 6 years old
Weight 3.6kg
Location: NSW Australia, for non Australians we are currently in mid spring
Symptoms:
Breathing through mouth, more...