Yes, you can take your bird in his cage outside. It's even good for him with a few cautions. Make sure the cage is closed securely and your bird cannot escape. While sunlight is good for your bird, start off slowly, a few minutes at a time in the sun. Keep him in the sun for a maximum of no more than 15-20 minutes. Never leave your bird unattended outdoors - you never know when a cat or other creature is on the prowl.