Add perches to electricity pylons to reduce electrocution
Overall effectiveness category Unlikely to be beneficial
Number of studies: 1
Background information and definitions
Raptors and other large birds can become electrocuted when they perch on pylons and touch multiple wires with their wings. Adding perches to pylons may therefore reduce mortality by allowing birds to land safely away from the wires.
Supporting evidence from individual studies
A before-and-after study in a wetland national park in Andalusia, Spain (Ferrer & Hiraldo 1991), found that adding perches to 80 electricity pylons did not reduce electrocution rates of Spanish imperial eagle Aquila adalberti. This study discusses other eagle management techniques, described in ‘Bury or isolate power lines’, ‘Use signs and access restrictions to reduce disturbance at nest sites’, ‘Foster eggs or chicks with wild conspecifics’ and ‘Remove/treat endoparasites’.Study and other actions tested