Possible canker ?

I spent 3 hours trying to find a poultry vet with no luck,

We have baytril on hand, and have ordered ronidazole but will take a few days to get here,

Does this seem like canker ? Its effecting her eating, shes lost weight and all she seems to want to eat is blueberries. She's not feeling well and has been extra cuddly, im hoping a vet will get back to me but in the meantime what can I do to make sure my girl is ok? Thank you