An outlying landing field (OLF) is a satellite airfield, associated with a seaborne component of the United States military. When associated with the United States Navy (who operate the majority), they are known as naval outlying landing fields (NOLFs) or naval auxiliary landing fields (NALFs); when associated with United States Marine Corps, they are known as Marine Corps outlying fields (MCOFs) or Marine Corps auxiliary landing fields (MCALFs).
NOLFs were primarily built field carrier landing practice, and to also mitigate noise caused by louder aircraft from existing fields. Having no based units or aircraft, and minimal facilities, an outlying landing field is used as a low-traffic location for flight training, without the risks and distractions of other traffic at a naval air station or other airport.
However, the construction of a NOLF imposed various environmental issues, including bird/animal strike hazards (BASH), which can stress the bird population in the area. The Navy used various techniques to mitigate BASH, such as managing these hazards through the usage of radar detection and habitat management.
Source: AirNav.com airport search