Birds and planes share the same skies, but not on equal terms. For all the sophistication of modern aviation, a flock of birds remains one of its most persistent and unpredictable hazards.
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Birds and planes share the same skies, but not on equal terms. For all the sophistication of modern aviation, a flock of birds remains one of its most persistent and unpredictable hazards.
The scale of the problem is often underestimated. In 2019 alone, more than 17,000 bird strikes were reported in the United States, according to the Federal Aviation Administration, as cited by CNN. Globally, the figure runs much higher, with many incidents never formally recorded.
Yet most passengers will never notice. Flights take off, cruise and land without incident. The risk feels distant. The reality is more complex.
Bird strikes have shadowed aviation since its earliest days. In 1905, Orville Wright documented what is widely regarded as the first recorded collision between a bird and an aircraft.
More than a century later, the fundamentals have not changed. Aircraft have become faster, larger and more resilient. Birds, meanwhile, remain agile, unpredictable and difficult to track.
Each year, thousands of birds collide with aircraft, often fatally for the animal. For aviation, the consequences range from minor damage to severe system failure.
Most bird strikes occur where aircraft are most vulnerable. The majority take place below 3,000 feet, during take-off and landing.
These are the moments when engines are under high load, pilots have limited time to react, and aircraft operate close to terrain. It is also where birds are most active.
Only a small proportion of strikes, around 3 per cent, occur during the cruising phase. Even so, rare incidents have been recorded at altitudes of up to 31,000 feet, highlighting the unpredictability of the threat.
Airports themselves can intensify the problem. Large open spaces, water bodies and surrounding vegetation attract both migratory and resident birds. Runways, by design, cut through these environments.
To counter this, wildlife management teams deploy a mix of deterrents. Fireworks, lasers, trained dogs and birds of prey such as hawks and falcons are used to disperse flocks, CNN reported. These measures reduce risk, but do not eliminate it.
Most bird strikes do not lead to accidents. Aircraft are designed with a degree of tolerance for such impacts. But when conditions align, the results can be severe.
One of the most widely known incidents occurred in January 2009. A US Airways Airbus A320 departing New York struck a flock of Canada geese, leading to the failure of both engines.
Captain Chesley Sullenberger and First Officer Jeff Skiles executed an emergency landing on the Hudson River. All passengers survived, an outcome widely described as exceptional, according to CNN.
Earlier cases were less forgiving. In 1960, a Lockheed Electra aircraft crashed after ingesting birds into its engines shortly after take-off from Boston, killing 62 people. Two years later, a Vickers Viscount crash caused by bird impact to the tail resulted in 17 fatalities.
These incidents reshaped aviation safety standards. Regulators began to require more rigorous testing of aircraft structures and engines against bird impacts.
If the problem sounds unusual, the solutions can seem even more so.
At the National Research Council Canada, engineers simulate bird strikes using specialised compressed-air cannons. The goal is straightforward. Recreate the conditions of a real collision in a controlled environment.
The execution is anything but ordinary.
The cannons fire bird carcasses at aircraft components, including windshields, wings and engines. The birds used can weigh anywhere from a few ounces to several pounds, depending on the certification requirements.
“It is about making sure we are firing the bird at the required speed,” said Azzedine Dadouche in an interview with CNN Travel.
Tests can take weeks to prepare. Engineers calibrate the system using gelatin substitutes or supermarket chickens before conducting final tests with real birds. The aim is precision. The impact speed must match real-world flight conditions.
The approach may sound unusual, but it reflects a serious objective. Aircraft must withstand impacts without catastrophic failure.
In some cases, testing has gone well beyond normal operating conditions.
Experiments conducted by the NRC in the late 1970s propelled projectiles at speeds exceeding Mach 1. A two-pound gelatin projectile reached around 1,000 miles per hour. A real bird was later fired at over 800 miles per hour.
The results were as much about understanding limits as meeting regulatory standards. The facility gained a reputation for producing what it informally described as the “world’s fastest chickens”.
Behind the humour lies a clear message. Aviation safety depends on anticipating worst-case scenarios, not average ones.
The same testing systems are now being adapted for a different challenge. Drones.
The rapid growth of recreational and commercial drone use has introduced new risks around airports. Unlike birds, drones are made of rigid materials and can cause different types of damage on impact.
Dadouche told CNN that regulatory frameworks for drone impacts are still evolving. There are no comprehensive global standards yet, despite the increasing frequency of incidents.
Tests at the NRC have already involved firing drones at aircraft structures at speeds of up to 250 knots. The findings are helping inform future safety rules.
Despite decades of research, bird strikes cannot be fully eliminated. Aviation operates in open airspace. Birds do not follow flight plans.
What has changed is how the industry manages the risk.
Aircraft are stronger. Engines are tested to withstand bird ingestion. Airports deploy increasingly sophisticated wildlife control systems. Data collection has improved, offering better insight into patterns and hotspots.
Even so, the underlying dynamic remains. Birds and aircraft will continue to cross paths.
For passengers, bird strikes are largely invisible. They rarely make headlines unless something goes wrong. Yet they represent a constant background risk that shapes how aircraft are designed, tested and operated.
The industry’s response has been pragmatic. Accept that the risk exists, and build systems robust enough to handle it.
That includes everything from reinforced windshields to unusual testing methods that involve firing birds at aircraft components in controlled environments.
As global air traffic grows, so too will the exposure to bird strike risk. Expanding airports, changing migration patterns and environmental factors could all influence future trends.
At the same time, new hazards such as drones are adding complexity to an already challenging area.
For regulators and manufacturers, the focus will remain on adaptation. Better data, improved design and evolving certification standards are likely to define the next phase.
For now, one conclusion stands out. Bird strikes may seem like a small problem, but in aviation, even small risks demand serious attention.
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