The reason I spend so much time keeping my backyard in the best shape is that I love spending time outside, on the patio or on the porch, with family and friends.
The presence of flies in that very same outdoor space can really ruin that experience in many different ways. Flies tend to like our food as much as we do, they fly into our faces, they buzz around our ears, just to name a few grievances.
While having birds around in the front or backyard is a wonderful thing (for me at least), you would want them to stay away from the porch, for various reasons.
Perhaps the biggest reason is bird droppings, which can, in the long term, cause significant damage to your porch and surrounding area. Plus, bird droppings also don’t look and smell very good, and can carry diseases.