Which of the following is a method for bird control on airfields?

The method of bird control on airfields that is recognized for its effectiveness is the use of sound decoys. Sound decoys work by mimicking the calls of birds, thereby attracting them to areas that are safer from aircraft traffic or deterring them from approaching runways. The strategy relies on manipulating avian behavior through auditory cues, which can help manage bird populations in critical areas and reduce the risk of bird strikes.

While some other methods may be utilized in various contexts, sound decoys have a more established track record in aviation settings. Infrared technology, for instance, is not commonly used for bird control; instead, it’s typically associated with thermal imaging in surveillance. The shotgun approach, although it may suggest a more aggressive strategy, is not a recognized or sustainable method for bird management on airfields and poses significant safety and ethical concerns. Visual camouflage may have applications in different fields but does not have direct relevance to bird management in aviation.

Therefore, using sound decoys is an appropriate and well-documented technique for controlling birds in proximity to airfields, highlighting its suitability within this context.