Bird Removal & Prevention | Stop Birds in Attics & Vents

Seal Entry Points Before Nesting Season

The most effective and humane method to prevent sparrows is blocking access to areas they like to nest. This includes:

• Attic gaps and roofline holes

• Dryer and bathroom exhaust vents

• Open soffits or loose siding

• Gutter lines and fascia gaps

Professional wildlife exclusion uses materials like steel screening, Pest-Blok, trim coil, vent guards, and one-way doors (when permitted) to allow birds to leave safely but stop them from returning.

Important: Many bird species are protected during nesting season, so always check regulations before disturbing an active nest.

When it comes to removing or preventing birds from nesting on your property, it’s important to understand that many species in the United States are protected under federal and state laws. The Migratory Bird Treaty Act (MBTA) prohibits the hunting, capturing, killing, or disturbance of migratory birds, their eggs, and their active nests without proper authorization. This means that even unintentional harm or nest removal can result in fines, legal penalties, and required permits to continue work.

What Is Protected Under the Migratory Bird Treaty Act?

The MBTA protects more than 1,000 species of birds, including:

• Songbirds (such as robins, finches, swallows)

• Waterfowl (geese, ducks, cranes)

• Hawks, owls, falcons

• Many common birds that nest on buildings and homes

Under the MBTA, the following are typically illegal without a permit:

• Removing or destroying an active nest

• Disturbing birds while nesting

• Removing eggs or fledglings

• Trapping or relocating migratory birds

• Blocking entry while young are still inside

Protected vs. Non-Protected Birds

Not all nuisance birds are protected. Two species commonly encountered in residential and commercial wildlife control are not protected under the MBTA:

• House Sparrows

• European Starlings

• Rock Pigeons (feral pigeons)

These species are considered invasive and non-native, so nest removal and prevention methods generally have fewer restrictions. However, local and state rules may still apply, and removal should always be done humanely and responsibly.

When Can Nests Be Removed?

A nest may be removed only when:

• It is inactive (no eggs, no young)

• The species is not federally protected

• Removal complies with state regulations

• The work is performed in a humane manner

If a nest belongs to a protected migratory species and contains eggs or young, it typically cannot be removed until the young have fledged. In some cases, property owners may apply for special federal or state permits if the nest poses direct safety, structural, or health risks.

European starlings are aggressive, invasive birds known for taking over attic spaces, soffits, dryer vents, bathroom exhaust vents, and roofline gaps. They travel in large flocks, reproduce quickly, and can cause significant damage to homes and commercial buildings. Because starlings are not protected under the Migratory Bird Treaty Act, prevention and removal options are more flexible than with native birds — but long-term control still requires structural exclusion and professional-grade deterrents.

Below are effective, humane, and long-lasting ways to prevent starling infestations on your property.

1. Seal All Structural Gaps and Vulnerable Entry Points

Starlings exploit even the smallest weaknesses around a home. Focus on sealing:

• Gaps in soffits or fascia

• Holes along rooflines

• Open attic vents

• Loose siding corners

• Gutter gaps or damaged drip edge

• Gaps where utility lines enter the house

Professional exclusion uses durable materials like Pest-Blok steel, trim coil, attic vent guards, hardware cloth, and wildlife-proof vent covers to block starling access permanently.

3. Use Bird Spikes on Ledges, Signs, and Roof Edges

Because starlings gather and perch in large numbers, eliminating roosting areas helps discourage them. Bird spikes can be installed on:

• Signage

• Window sills

• Rooftop edges

• Light fixtures

• Support beams

• Commercial ledges

Stainless steel spikes are humane and long-lasting — they simply remove a stable landing surface.

4. Install Bird Netting for Larger Areas

For commercial buildings, warehouses, loading docks, and overhangs, heavy-duty bird netting creates a full barrier that stops starlings from entering protected spaces. Proper installation prevents sagging, gaps, and entanglement issues.

5. Remove Food and Water Sources

Like most nuisance birds, starlings will stay where food is consistent:

• Keep garbage areas sealed

• Clean outdoor eating areas

• Remove spilled seed from feeders

• Avoid feeding birds cracked corn or bread

• Keep pet food indoors

Replacing standard bird seed with safflower reduces starling activity around feeders.

6. Use Visual and Sound Deterrents (Short-Term Only)

Starlings are intelligent and adaptable. These deterrents may help temporarily, but should never replace exclusion:

• Reflective tape

• Predator balloons

• Auditory repellents

• Flashing discs

They are most effective when combined with structural bird-proofing.