Are barn swallows and their nests just on your house? Then, you know – these landing and nesting birds create a lot of noise on your property, especially at night when you sleep. Even when barn swallows are outside of your property, their droppings, feathers, and nest paraphernalia can get sucked into drainpipes or vents and create a fire hazard that can lead to thousands of dollars in repairs. When vents become garbage cans for swallows, any odor or disease that comes along with these birds can contaminate the air you breathe and the food you eat.