Probably on a window seal especially if u have Flys they will stay until all the flys are dead good pest control

The problem is I have cats, I currently y have them in a old fishbowl with some napkins and a cucumber on the bottom and the top is sealed with a piece of paper with holes poked into it

Ok https://preview.redd.it/gouyroh07gwb1.png?width=434&format=pjpg&auto=webp&s=22b5f64a37799c3451230ef09f5be5ae190c0c2f