Any songs about escargot?

Gurney, if you cut around the bottle so that there is more height in the base than the cone-shaped top then there is enough of a gap to make it difficult for them to fly out. Fruit flies tend not to fly straight up. It's only a problem if the fruit pieces are close enough to the bottle opening for them to be able to fly into it.

And thanks for the enlightenment, Rowan. Even more interesting than I imagined. And clever, too.

And Joybell, a friend of mine who lived on a property was poisoning a plague of mice at one stage and was asked by neighbours whether they were using a secondary poison, i.e. one which will kill a predator. She was horrified when she realised that the local owls had probably eaten the mice and died.

BTW, we get tawny frogmouth owls in the trees in our suburban yard. I have photos. And we have lots of native birds, as well as what I call "dropkicks", i.e. pesky Indian Mynah birds, and then there are the blue tongue lizards and the frogs in our pond, and lots of interesting spiders. One day I'm going to do what I saw an Oz biologist do on tv, and put slugs on the bathroom walls to eat the mould, and put a small reptile in the house - I think it was a gecko or something like that - to eat the flies.

Helen