Yellow urates can be a sign of liver damage, kidney problems, or peritonitis. The clear fluid is urine. The amounts will vary with each dropping. Continued large amounts of urine may be a sign of stress or digestive problems and a vet consultation is warranted. Birds who eat large amounts of fruits can have increase in urine output.
Fecal matter is the solid portion of a bird's dropping.
The color of fecal matter can range from varying shades of green, yellow and brown. Bright red or black droppings are signs of serious problems and vet care should be sought immediately. Bright lime green droppings may be a sign of Psittacosis and should be reported to your vet immediately. Certain foods can affect the color. Pelleted diets cause a brownish fecal color.