Keep your distance
Stay outside the flight path
Watch from a position where insects are not passing around you. Look for repeated movement into a wall, roof edge, air brick, tree or ground opening. Keep children and pets away, and do not tap the structure, block the entrance or spray into it to see what emerges.
- No close or elevated photograph is needed.
- Leave an exposed cluster undisturbed.
- Keep doors, windows and public paths beside the route clear.