Wetlands are another major attractant of wildlife in the airport environment. They are of particular concern because they attract waterfowl which have a high potential to damage aircraft (Federal Aviation Administration 2013). With large areas of impervious surfaces, airports must employ methods to collect runoff and reduce its flow velocity. These best management practices often involve temporarily ponding runoff. Short of redesigning existing runoff control systems to include non-accessible water such as subsurface flow wetlands (DeVault et al. 2013), frequent drawdowns and covering of exposed water with floating covers and wire grids should be employed (International Civil Aviation Organization 1991). The implementation of covers and wire grids must not hinder emergency services.