guys, my chickens are kept in a very large fenced area (in an allotment away from my home) which once was covered with grass. now its just dirt. i did parts over each week to give them something new to scratch in. in my backgarden i have a small vegetable patch which naturally attract a very large number of slugs. instead of using the blue pellets, i want to trap them & feed them to my hens. whats the best way to capture them? i heard of putting a jar in the ground with beer but not only a waste of beer but would it hurt the hens if they ate a slug caught with beer?