For the past few years I have observed a white pigeon amongst the flock of 50 or so I feed at my house. A week ago I noticed him becoming sluggish, then he finally started staying on the ground and not leaving. I fed him and his eating has slowly deminished. It is in the 80's here. I caught him with little effort and have him in a very good small cage with proper food and water. He seems so weak. Any ideas? Just old and dying time? I am sad. Thank you.