Where do they come from, i've started keeping my doors and windows closed and every day i let hot 15 flies from just inside my windows.
This happens in both my sitting room and kitchen. I keep the doors closed between both rooms closed to try and source here they are coming from. They look like blue bottles, slightly larger than a house fly and a blue tint off the abdomen.
All meaty products are kept in the fridge and i live in the house by myself so i don;t think anything is rotting behind a couch or press.
anyone got any ideas or how to get rid of the little feckers