* Decreased activity. African greys are naturally very active birds, so if you notice that your bird is spending more time than usual sleeping or sitting still, it could be a sign of illness.
* Loss of appetite. If your African grey is not eating or drinking as much as usual, it could be a sign of illness.
* Changes in droppings. Healthy African greys produce firm, dark green droppings. If you notice any changes in the color, consistency, or frequency of your bird's droppings, it could be a sign of illness.
* Respiratory problems. If you hear your African grey wheezing, coughing, or sneezing, it could be a sign of a respiratory infection.
* Eye problems. If you notice any discharge, swelling, or redness in your African grey's eyes, it could be a sign of an eye infection.
* Feather problems. If you notice any broken, missing, or discolored feathers, it could be a sign of a health problem.
* Behavior changes. If your African grey is acting differently than usual, such as being more aggressive or withdrawn, it could be a sign of illness.
If you notice any of these signs, it is important to take your African grey to the vet as soon as possible. Early diagnosis and treatment can often improve your bird's chances of recovery.