I got my cockatiel 14 days ago. He is 4 months old, male. I was told that it would take 3-4 days to tame him but he still doesn't come to me when I call him. He was finger trained when I took him, he eats from anyone's hands but he doesn't come when I or any of my family members call him. Recently he has started recognising me a bit and had hopped over me for something like 4 times. I don't use force on him, I give him calming time, alone time, play time and comfort. He still bites me and doesn't leave his cage. My Akihito doesn't stay inside the cage, so I never push him into the cage, he only stays outside of cage. He also sleeps in days and gets active at night. I want to start training him so it doesn't get late. What should I do? To make him attached to me.