Illnesses
Chlamydia
Inflamed Crop
Enteritis (Inflamed Intestines)
Respiratory Infection
Pharyngitis
Nasitis (Nasal Inflamation)
Sinusitis
Hepatitis
Bronchitis
Pneumonia
As I recall, for all of the above, the treatment is the same. Add Streptomycin to the water, change it regularly, raise the cage temperature slightly and clean the cage regularly until symptoms clear.
Heatstroke
It's too hot. Check what temperature you set the cage to!
Malnutrition
Bird needs food badly! Try adding some multivitamin to the water too.
Dehydration
Bird needs water badly!
Obesity
Bird needs less food.
Causes of Death
Unsuitable Air Temperature (Air Temp)
Air temperature is too high or too low. Check cage temp a bit more often, it will vary through the day!
Environmental Aggravation (Envirnmnt)
The cage is allowed to get too dirty. Clean it more often, every single perch and the paper at the bottom of the cage!
Starvation (Stvn)
Lack of food. Either need food refilled more often, or they need more food, or they need the correct food for their species.
Dehydration (Dehydrtn)
Lack of water. They either need water refilled more often, or they need more waterers in the cage.
Illness (Sick)
Sickness. Check bird status more often and give them medicine as needed.
Senility (Age)
Old age. They lived long, and they prospered.
Debility (Dblty)
Various stress, a quarrel, lack of sleep, weakness. I usually see this for overcrowded cages. Try fewer birds in the next cage.
Obesity (Obesity)
Extremely overweight. Feed your birds less and try putting out a lot more Chinese Cabbage leaves.
Spoiled Food/Water (Drty F/W)
Ingestion of polluted food and/or water. Change the food/water out more often. It's quick, easy and free!