If you are going to catch them in the dark, how do you prevent "night fright" ...... I would think all the birds would fly & flap around crazily
That's what I always thought too, but because it's instantaneous (turning out the lights), they kinda go into shock like what just happened and you can grab them easily. Instead of flapping, they all just freeze in place.
That's what always happened when I tried to catch them on the perch at night, though I thought it was because I had to walk up to them in the aviary rather then slip my hand into their cage.
Debbie, this would definitely be trickier with a walk-in aviary. You would essentially have to already be in the space and have them settle around you, within reach for it to work. Having to walk up to them would probably not work.