Are Birds Nesting in Your Home?

Finding a bird nest on or in your home is easy to dismiss, especially in spring when birds are everywhere. But nesting birds inside your home’s structure are a different situation from a robin on a window ledge. Depending on where the nest is located, what species built it, and how long it has been there, you could be looking at blocked vents, fire hazards, health risks, and legal complications if you try to remove it yourself.

Here is what homeowners in Delaware and Maryland need to know.

Which Birds Commonly Nest in Homes

Not all bird species are equally likely to end up inside your home’s structure. In Delaware and Maryland, the most common problem species are:

• European Starlings: Highly adaptable and aggressive cavity nesters. They commonly take over dryer vents, bathroom exhaust vents, and openings in soffits. A starling nest can block airflow entirely within a few days of construction.
• House Sparrows: Similar to starlings in their preference for vents and small structural openings. They nest repeatedly in the same location season after season if not excluded.
• Chimney Swifts: As their name suggests, they nest inside chimneys. They are a federally protected migratory species, which means active nests cannot legally be removed during the nesting season.
• Pigeons: Common on flat roofs, ledges, and in larger attic openings on commercial and residential buildings. Pigeon droppings accumulate quickly and are highly corrosive.
• Canada Geese: Less likely to nest in the structure itself, but common on properties near water throughout coastal Delaware and the Eastern Shore, where they nest on the ground and can become territorial and aggressive.

Why Birds Choose Your Home

Birds look for nesting sites that offer protection from predators, shelter from weather, and proximity to food. Your home checks all of those boxes. Specifically, birds are drawn to:

• Uncapped dryer and exhaust vents, which are warm, enclosed, and elevated
• Open or damaged soffits along the roofline
• Uncapped chimneys
• Gaps behind gutters and fascia boards
• Flat roof areas with HVAC equipment that provides both warmth and shelter

Bird feeders in your yard increase activity around your home and can draw birds to investigate your structure for nesting opportunities. If you are dealing with a recurring bird problem, removing or relocating feeders during nesting season can help reduce the pressure.

The Damage Nesting Birds Can Cause

A bird nest inside a vent or structural cavity causes several categories of damage:

Fire Hazard

Dryer vents clogged with nesting material are a leading cause of dryer fires. Bird nests are made of dry grass, twigs, feathers, and debris, all of which are highly flammable. A clogged dryer vent also forces the dryer to work harder, increasing energy use and wear on the appliance. If your dryer is taking longer than normal to dry a load or feels unusually hot, a blocked vent is one of the first things to check.

Health Risks

Bird droppings harbor bacteria and fungal spores that can cause illness in humans. Histoplasmosis, caused by inhaling spores from accumulated droppings, is the most serious risk. Psittacosis and salmonella are also associated with bird droppings. Beyond droppings, bird nests frequently harbor mites, lice, and other parasites that can migrate into the home once birds vacate or are removed.

Structural Damage

Birds nesting in gutters or on rooflines cause water to back up and pool, leading to rot, fascia damage, and leaks. Pigeon droppings are acidic enough to deteriorate roofing materials, paint, and metal surfaces over time with regular accumulation.

Why You Should Not Remove Bird Nests Yourself

Most bird species in the United States are protected under the Migratory Bird Treaty Act. This federal law makes it illegal to disturb, move, or destroy an active nest, meaning one that contains eggs or live young, without a permit. Violations can result in significant fines.

Even for unprotected species like European Starlings and House Sparrows, attempting DIY removal without also installing proper exclusion often just results in the birds rebuilding in the same location within a few weeks.

A professional can identify the species, determine whether the nest is active, remove it legally and safely, and install exclusion hardware to prevent the same problem next season.

What Professional Bird Removal Involves

Depending on the species and location, bird removal typically involves:

• Species identification to determine legal constraints on removal
• Nest removal after confirming the nest is inactive, or waiting until the nesting season ends for protected species
• Cleaning and sanitizing the affected area to remove droppings, parasites, and debris
• Installing vent guards, chimney caps, or exclusion hardware to prevent re-entry

Contact Bay Area Wildlife Solutions

If you have birds nesting in your vents, soffits, chimney, or attic, Bay Area Wildlife Solutions provides professional bird removal and exclusion services throughout Delaware and the Eastern Shore of Maryland. We handle starlings, sparrows, pigeons, and other common nuisance species, and we can advise on the correct approach for protected species like Chimney Swifts.

Call us at (302) 500-0181 or contact us online to schedule an inspection.