I've had some wonderful success with my version of "beer" traps (made with water, yeast and sugar).
How often is it best to empty them? Will the birds eat the slugs if I leave the dead creatures in a dry pot (or similar!)? I hate the thought of good protein going to waste, but definitely won't be adding them to family meals!
(sorry for not being around for ages - been too busy with another sort of growing my own - son #2!)