Posted: 11/01/2017 at 13:01
Problem is I have no idea where they come in from. They seem to sense when somebody is around and stay out of sight.
I have had an idea for a modification to the perspex screen though. Have the perspex at an angle that the cats can climb onto and attach some kind of spring loading mechanism which will release when pressure is applied. Wheeeeeeee. Cat's now in somebody elses garden!!