A departure procedure based upon a straight out climb would call for minimum climb gradients that exceed those expected for the left turn procedure, and would dramatically reduce aircraft payload capability. ALPA has repeatedly voiced its concerns for this problem with the county, only to be told that they will not lose votes over noise propagation. The county will apparently ignore safety concerns by placing a premium on noise and votes. Wildlife Wildlife issues also require mitigation. The Advisory Circular is attached for your information.
Gulls top the list as the bird most commonly struck by aircraft.
If a daily migration pattern exists to the landfill areas noted above, the probability of an engine failure on take off dramatically increases. This only adds fuel to the fire when debating the issue of engine failures on take off. Aircraft engines can sustain certain amount of damage caused by bird ingestion, but they remain susceptible and vulnerable and are by no means bullet proof. As the Advisory Circular describes the problem, birds profoundly affect the aviation industry. Lost lives and billions in damages have resulted because our fine-feathered friends wish to share the same airspace.