PLEASE do catch it and contain it for its own safety. A dog or cat carrier will do for now. It is VERY vulnerable to hawk or other predator attack, and no one will pick up a loose bird. A white bird, by itself, (and a pet) without the protection of a flock, stands out and it is a sitting duck. Believe me, it may not be today, or tomorrow, but eventually they come.Thank you for replying! No, it isn't contained. But would be very easy to catch. She/he hangs out at our house all day and then at night sleeps in the big tree in our front yard. Definitely has a whole routine. It is definitely a pet or was someone's pet. Very curious and sweet. Comes up to me to get food. I would love to find someone that can give it a great living home!