My four birds were 42 days old They were using the trap and going in and out of the settling cage. They were flying around the aviary and had a great view of their surroundings. I tried letting them out for the first time. They were very hungry because I had only given them half their food the day before. I let them out and they IMMEDIATELY flew away. I tried using their feed call and it didnt work. Circled once and were gone and have not seen them since. That was 2 and a half days ago. I have tried the feed call several times each day just in case they were around but no luck. There were no hawks around bc the chickens are excellent indicators of that and they were very relaxed. The dog wasnt outside running around I cant think of anything that could have spooked them. They were amazing flyers. These were my pets so I was really really disappointed.