What changes the health answer
Learn your bird's normal on plain paper: usual color, size, wetness, frequency, and how droppings change after fresh foods.
Know the three parts
Feces are the solid part, urates are usually white or cream, and urine is the clear liquid portion.
Diet changes can show up
Leafy greens, fruit, pellets, seed, and watery foods can change droppings. The key is whether the bird otherwise acts normal.
Watch warning changes
Blood, black tarry droppings, very watery output, no droppings, undigested food, foul smell, or changes with not eating need vet advice.
Best habit
Use plain liners and check droppings before cleaning them away.