We have 2 'male' IB that are roughly 2yrs old now. We've had them together for about 12months in a cage and they've adapted pretty well. A few worm issues, but that seems to be behind me for now. So, now that spring has sprung we've started to let them out of the cage, at first I would just let one out at a time to see what would happen. Well, it turned out that they are truly buddies and one won't go more than 10ft from the other, so the one I let out would just stay right by the cage. About a 2 weeks ago on a weekend, we let both out to see where they would go. As it turns out, we have a few windows near ground level and they have spend just about every minute of the day going from one window to the other all around the house. So it's good that they certainly stayed close, they seem 100% occupied with their reflections.
At about dusk, they hear me out at their cage and wonder in to get some food and water, and get ready to fly up 6ft to roost.
Mine have not made many sounds yet, no calling and a few clucks when they see something odd, I've gotten to throwing a towel at the window if they get to pecking at it too much and that gets them off pretty quick. They have not flown at all, I thought they might try to get up on a lower roof section, but nope.
They seem to drop most of their poop at night since there always lots of new poo on the ground in the mornings.
Having gotten them out of the cage for a bit has meant I've been able to set some mouse traps and got 5 today from just one trap.
gary