Why birds use chimneys

Chimneys can give birds a protected elevated cavity, especially when caps are missing, damaged, loose, or not suited to the opening. Birds may also use gaps around the chimney, nearby roofline openings, parapets, soffits, and facade details.

Chimney-related work should be handled carefully because the opening may be tied to building systems, code requirements, draft, and safety. Bird Control NYC can identify bird activity and recommend the proper prevention direction.

Common signs of activity

• Birds entering or leaving a chimney opening.
• Chirping, scratching, or fluttering near the chimney area.
• Nesting material visible near a cap or roofline.
• Droppings on the roof surface or below the chimney.
• Birds gathering on nearby parapets or roof edges.
• A missing, loose, or damaged chimney cap.

Where we usually find the problem

Chimney bird calls often come from brownstones, row houses, older residential buildings, apartment buildings, mixed-use properties, roof bulkheads, parapets, and properties where birds are active along the roofline.

On NYC buildings, the visible mess is not always the source. Droppings on a sill, balcony, fire escape, roof surface, sidewalk, or rear yard may be coming from a ledge, parapet, vent, louver, soffit, AC sleeve, chimney opening, or roofline gap above the affected area.

Why this should be handled carefully

Nesting material in or around a chimney opening can create odor, noise, debris, repeat bird activity, and possible ventilation concerns. Active nests must be handled legally and humanely before any exclusion decision is made.

Active nests, eggs, and young birds must be handled properly and in accordance with applicable wildlife rules. Bird Control NYC inspects first, explains what we find, and recommends the proper next step based on the bird activity, access, and structure.

Our inspection and prevention process

1. Review photos or inspect the area: We look at the opening, surrounding surface, droppings, nesting material, and access conditions.
2. Identify the access point: We confirm whether birds are landing nearby, nesting inside, or entering through a gap.
3. Check for active nesting: Timing and handling matter when nests, eggs, or young birds are present.
4. Remove material where appropriate: Accessible nesting material and debris can be removed when legally appropriate and conditions allow.
5. Install prevention: We recommend a cover, screen, guard, mesh, sealant, deterrent, or repair option that fits the building condition.

Prevention options

Prevention may include chimney cap recommendations, screening, hardware cloth, exclusion mesh, repair planning, or deterrents on nearby roof edges, parapets, ledges, and landing surfaces.

The goal is to stop re-entry while preserving building function. Vents still need airflow, downspouts need drainage, AC units need ventilation, chimneys must remain safe and code-appropriate, and exterior materials should not be damaged by the wrong installation method.

Serving the five boroughs and Long Island City

Bird Control NYC provides this service across Manhattan, Brooklyn, Queens, Long Island City, the Bronx, and Staten Island. We work with residential buildings, mixed-use properties, commercial buildings, restaurants, warehouses, storefronts, co-ops, condos, supers, landlords, and property managers.

Common access conditions vary by borough. Manhattan buildings may involve high-rise facades, roof bulkheads, parapets, and terraces. Brooklyn and Queens calls often involve brownstones, row houses, storefronts, mixed-use buildings, and rear elevations. Long Island City properties may involve newer multifamily buildings, rooftops, balconies, commercial spaces, and mechanical areas. Bronx and Staten Island calls often include apartment buildings, residential rooflines, gutters, vents, and solar panel arrays.

Frequently asked questions