Put something nice and stinky (fish oil maybe) on the clingfilm after you have wrapped the bait. Between the eradibait and Daffyd the muscovy we haven't had a rat problem in the last few months
Daffyd was doing a grand job on his own till his Mrs went broody, then he refused to leave her

so we tried eradibait. Worked well for us.
He's back to killing small squeaky things if he finds them again now

< this icon does not do the wonderduck any justice