Is this normal? Since taking him to the vet and getting him treated for respiratory infection and an eye problem. I’ve also started to get him to eat pellets along with some seeds. I read birds poop can changing color due to diet? As he was previously on a seed diet his poop was green and now it’s brown like the picture. But my cockatiel has never done this size of poop before and he’s done it twice today. He has also started sleeping on his food dish. We assume he’s at least 10+ years old.