The early signs of illness in birds are often overlooked by the majority of pet owners. This is the result of birds' long-term evolution; in the wild, sick birds try to act as normal as possible to avoid predators. Therefore, in domestic settings, when birds show clear signs of illness, the condition may already be severe.
It's common for owners to say, "My bird was fine yesterday, but today it suddenly looks much worse, fluffing up its feathers." For owners, these sudden changes in condition are not actually sudden; it's just that they haven't promptly noticed the changes in their bird's behavior and condition. Owners can observe their bird's health status through the following methods.
First, look at the feces. To track the health status of their bird at home, owners need to pay attention to the feces at the bottom of the cage. This can be done using tissues, newspapers as the lining material at the bottom of the cage. These help in observing the shape, color, quantity, volume, and changes in the feces. Normal bird feces consist of three parts: the outer ring of clear urine, the middle cylindrical stool part, and the surface covered with white to yellow-white uric acid.