Crusty feathers and stinky off smell

[Eggcessive]

It may take using a headlamp or flashlight, while having someone hold the chicken wrapped in a towel, to see well inside the beak. Pictures are helpful as well.

 

[Bufflady90]

Ok so the oxy didn’t work and in Australia they don’t sell sulfa for chickens I managed to order some for ‘ornamental birds’ but the dose says for parrots. Does anyone know the dose I need for 10 chickens see pics. Please help I need my experienced chicken owners!