Pay attention to your birds every day. Any change from the normal practice and behavior, that may already reflect some health issues because birds will hide their symptoms until they are in serious condition. Keep bird warm immediately and take them to avian vet as soon as possible if your bird gets sick, or you are not sure if your bird is sick or not. DON’T WAIT because bird can die in 1 to 3 days if no drinking or eating. Here are some common signs of illness in birds.