Where Found
for House Fly
The species has a worldwide range and stays tied to human activity. Flies breed in moist, decaying organic matter: manure from livestock and poultry, human waste, fermenting plant material, kitchen scraps, and the garbage, lawn clippings, and rotting produce around the home. Source: https://entnemdept.ufl.edu/projex/gallery/dl/Beneficial_Arthropods_Parasitoids/TEXT/DIP_House_fly_Musca_domestica.html Source: https://ipm.ucanr.edu/PMG/PESTNOTES/pn7457.html
The heaviest populations build up where manure collects, so barns, feedlots, and poultry houses are classic hot spots; homes usually pick up flies from nearby trash and yard waste. Source: https://texasinsects.tamu.edu/house-fly/