The U.S. Fish and Wildlife Service recommends that any company proposing to construct a new communications tower should collocate the communications equipment on an existing communication tower or other structure such as abillboard, water tower, or building mount.
Additionally, the type of lighting used on the towers is important. According to the U.S. Fish & Wildlife Service, it is estimated that nearly 7 million birds, predominantly night-migrating songbirds, die each year as a result of collisions with lit communication towers in the United States. Birds can be attracted to and disoriented by tower obstruction warning lighting systems that include non-flashing lights, especially during inclement weather. Research has demonstrated that eliminating non-flashing lights on towers may reduce migratory bird collisions by as much as 70 percent.