I may be getting some pigeons in the next couple of months (Yay!) and the aviary is still under construction. Its going to be lovely and big, with tons of perches and little feeding stations/etc. What's everyone's take on free ranging adult birds that were not raised on the premises? How long should I leave them in the aviary before opening the doors? I'm not worried about hawks so much around our farmyard, we have an excellent falcon-dog that keeps them at bay. Should I let them out the first time near evening so they are more likely to return home faster? Thanks in advance!