The Island : organic warfare using saurians (birds) and mamals ( hedgehog) against slugs by "goating" them...

Roooar was the Trex doing in the jurassic park movie, like the raptors fleecing them...

this is the current state, inspired by a danish guy... "reintroducing slugs into the food diet"

it's of course only the early alpha test, as the water isn't clean enough to attracts birds to drink, but enough to restrict the displacement of the captive bait...