Hey folks,
hoping someone here can shed some light on a weird situation. Over the past week, my backyard has been full of hovering house flies — they’re not landing much, just floating in place like tiny drones. I’ve lived here for years and never seen anything like it.
I’m trying to figure out what’s causing it. Some people online say it can be a sign of a nearby breeding site, others mention temperature or humidity changes, and a few blame it on something dying in the area (not exactly comforting).
I’ve seen this when my compost bin got too warm and started giving off a smell. Flies just hovered above it like they were waiting for a buffet to open.
Sometimes they hover when they’re looking for mates. Warm, still air seems to bring them out like crazy.
Check for anything damp or decaying. Doesn’t need to be big — even a forgotten bag of soil can attract them if it’s wet.
@YardWatcher22 Do you have pets? Their waste or any spilled feed can draw flies like magnets, even if you clean regularly.
I had the same issue last summer. Turned out a bird had died under my deck. The flies didn’t land much; they just hovered like yours.
Try putting out a fly trap for a day or two. If it fills up fast, you probably have a breeding source nearby.
They love warm surfaces too. If you’ve got a light-colored patio or fence, they’ll hang around those spots mid-day.
@ToolShedTed Good call. Flies reproduce fast, so even one hidden moist area can turn into a swarm.
Could also be your trash cans. Even if they seem clean, residue around the rim can attract them. I wipe mine weekly now.
If you want a quick fix, airflow helps a ton. A cheap outdoor fan keeps them from hovering since they hate the turbulence.