Am I doing this right?

[Little Feathers]

I sure like your idea of setting these up for an aviary and removing the catch trays.

I use these hoppers instead of seed dishes... I have two in the flight cage and one in each of my other cages and my finches and canaries have no trouble eating out of them. Most times there are two birds in feeder at one time. They do keep things cleaner and less waste. The two I have in the flight cage I have removed the seed catcher and hang the feeder so they hang over a plastic shoe box. The finches can forage and when I clean I throw the remains in the shoe box out under my outdoor bird feeders.......

[ http://i1194.photobucket.com/albums/aa368/Ranchnanny/DSC00920_zps7320408b.jpg ]

[ranchnanny]

The outside birds like the idea as well....