I recently adopted a green cheek from pet smart, we fell in love with him from the start, and he is very loving we named him Teeko. Pet smart didnt have his age on the paperwork but id say he is somewhere around 5 to 7 months old. We bought him a smaller cage to ride comfortably in the car on the way home because i didnt wanna let him ride in a box..so we ordered him a bigger cage off of amazon. it took a few days to arrive so we didnt keep him trapt inside this cage for a few days, and allowed him to sleep on or inside this smaller cage till it arrived, i didnt wanna make him feel trapt. After the new cage arrived he loved it at first and it was the first night he slept inclosed. after a few nights he began becoming aggressive and biting and refusing to go inside this cage. And now he hates it. he has toys as well, along with a colorful ladder buthe loves this smaller cage, i can enclose it and take him outside and let him sunbathe and everything with no problem. can anyone help understand why he like the smaller cage so much? is it just the safety he feels with it?