Where are these houseflies coming from?!
For the past three days we've had dozens and dozens of house flies inside. When I first noticed a few, I was making sure to close all doors and windows thinking they were getting inside, but then came downstairs yesterday and found like a dozen on one of my windows. I actually opened the window to let them OUT. (The call is coming from inside the house!)
We are very tidy, but for the past 48 hours have been checking every potential source ... deep cleaned the garbage disposal, checked the potato bin, checked every nook and cranny in the basement for a dead mouse or something ... I have no idea where they're coming from. I feel like I would notice maggots crawling all over something? They seem to congregate near windows, but I cant tell where they're originating.
We're managing with fly traps, opening windows when they congregate near one, and vacuuming them right out of the sky. I know the best way to deal with it is to eliminate the source of whatever is attracting them / where they're laying eggs but I dont know what else to check! Any other ideas?