Rats like to eat eggs and they are a long-lasting bait in winter. The moonlight reflects off white eggs and are good visual lures, particularly for stoats. Try placing an egg behind your rat trap (as shown in photos). Use a milk bottle top to hold the egg in place, and it’s easier if you have a hinged back door tunnel box (see first photo). You can still use your favourite bait in the trap itself and two bait types are better than one! Give it a go and see if it works out for you.