Adjusting housing to block escape
We have had our boy Baymax for a few weeks now and we purchased a large parrot cage for him a couple of weeks back. He has started freaking out over the sounds of a particular type of bird outside and is really keen to get out. We have had him out the past couple of days and have made the hpuse safe for him to do so, however there is a larger gap on one side of his main door which he can escape through at any time.
I am looking for suggestions on a budgie friendly way to make this gap smaller so that he cannot get out, as I am afriad he will escape when I am not home and hurt himself.
Thanks in advance!