Thanks for the info Julia, I have used fly traps in the past but had not thought of them as a source of feed yet. Now I think I will have a few around and see how they fit into the rotation.
I suppose we did get off topic a little, I think joe has a good point about the size of fruit flies. I feed old
compost that has fruit flies on it to my chickens a lot, I bet they eat some of those and it's also good if they eat any fruit flies in the forest
garden, but if I am harvesting something for them to eat it has to be bigger and easier than fruit flies to be worth it.
I have seen chickens peck
bees and moths straight out of their flight path, so they don't need my help in that arena. I will just make massive bug protein available to them though if it's easy enough.