The answer to 'why is my bee trails' is that bees are likely creating a trail or path to a food source, such as a hive or a nectar-producing plant. Bee trails are a normal part of their behavior as they forage for food and communicate the location of resources to the rest of the hive.
Bee trails are typically found outdoors, leading from the hive to flowers, trees, or other sources of nectar and pollen. They may appear as a line of bees flying back and forth, or as a visible path on the ground or on surfaces where the bees have been traveling. Seeing bee trails is usually not a cause for concern, as it is a natural behavior for bees to establish these routes to efficiently gather resources for the hive.