Bird Strike Prevention: How Airports Manage Wildlife Hazards

The threat to aviation is both physical and financial. Most strikes occur during the most critical phases of flight—takeoff and landing—with over 90% of incidents happening at low altitudes [2]. When a bird is ingested into a turbine, it can cause immediate engine failure, as seen in the tragic 2024 Jeju Air Flight 2216 incident where Baikal teals caused a dual engine failure [1].

Beyond the safety risk, the economic impact is staggering. According to Scientific Reports, wildlife management programs are highly cost-effective, with estimated economic benefits being seven times greater than the costs of the programs themselves [3].

The most effective long-term strategy for bird strike prevention is not scaring birds away, but ensuring they never want to visit in the first place. This is known as habitat modification.

• Grass Height Regulation: Airfield grass is typically kept at a specific height—usually between 6 and 10 inches. If the grass is too short, birds can easily see and eat worms or insects; if it is too tall, it provides nesting cover.

• Water Management: Standing water is a major attractant for waterfowl. Airports invest heavily in drainage systems and may use “bird balls”—floating plastic spheres—to cover retention ponds, preventing birds from landing.

• Vegetation Control: Trees and shrubs that produce berries or provide ideal perching spots for raptors are systematically removed or replaced with less attractive species [2].

When habitat management isn’t enough, airports use active measures to clear the area immediately before or during flight operations.

• Pyrotechnics and Sound: Propane cannons and “screamers” (hand-held pyrotechnic launchers) create loud noises to disperse flocks.

• Falconry and Canine Patrols: Some airports, like Toronto Pearson and Dallas-Fort Worth, utilize trained falcons or border collies. These natural predators trigger a “flight” response in problematic species like gulls and geese [4].

• Avian Radar: Advanced radar systems can track bird movements in real-time, allowing air traffic controllers to warn pilots of high-density flocks on the approach path.

• Lasers: Handheld green lasers have proven highly effective for dispersing birds during dawn and dusk without harming the animals or affecting pilot vision when used correctly.

The Federal Aviation Administration (FAA) and the International Civil Aviation Organization (ICAO) emphasize that wildlife management cannot stop at the airport fence. The FAA provides strict guidance on “Hazardous Wildlife Attractants on or near Airports,” often focusing on a 5-mile (roughly 8-km) for smaller airports and a 13-km advisory radius for larger ones [5].

Landfills, wastewater treatment plants, and even large-scale agricultural operations within this radius are monitored. In 2025, authorities in Lahore, Pakistan, demonstrated the scale of this coordination by enforcing an 8-km “No-Bird Zone,” which included cracking down on illegal meat vendors and removing rooftop pigeon cages to reduce attractants [2].

While airports work to prevent the strike, aircraft manufacturers work to mitigate the damage if one occurs. Modern jet engines must undergo “ingestion tests” to ensure they can be safely shut down or continue to operate after striking a bird of a specific weight.

Just as pilots must understand Cold Weather Operations for engine reliability, they are also trained in “Bird Strike SOPs” (Standard Operating Procedures) to manage the immediate aftermath of a strike without losing control of the aircraft.

Main Points Covered:

• The Risk: Over 90% of strikes occur at low altitudes during takeoff and landing, making airport perimeters the primary battleground for safety.

• Strategic Prevention: Modification of grass height, water drainage, and vegetation is the primary line of defense.

• Active Measures: Airports use high-tech radar, pyrotechnics, and natural predators (dogs and falcons) to clear the airspace.

• Regulatory Zones: Safety requires coordination with local municipalities up to 13 km away from the airport to manage external attractants like landfills.

Action Plan for Aviation Stakeholders: 1. Conduct Assessments: Airports should conduct a Wildlife Hazard Assessment (WHA) annually to identify shifting migratory patterns. 2. Report Every Incident: Pilots and ground crews should log all strikes in the National Wildlife Strike Database to help biologists identify hazardous species trends. 3. Coordinate with Local Government: Airport managers must engage with city planners to prevent the construction of attractants (like new parks or landfills) near flight paths.

While we may never completely remove wildlife from the skies, the combination of biological science, stringent regulation, and advanced technology ensures that the risk to passengers remains remarkably low. Through continuous data-driven efforts, airports are proving that nature and aviation can coexist—provided we keep a respectful, managed distance.