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Providing evidence to improve practice

Action: Insulate power pylons to prevent electrocution Bird Conservation

Key messages

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A single before-and-after study in the USA found the insulating power pylons significantly reduced the number of Harris’s hawks Parabuteo unicinctus electrocuted.


Supporting evidence from individual studies


A before-and-after study in 2003 in urban environments in Tucson, Arizona, USA (Dwyer & Mannan 2007), found that there were significantly fewer electrocutions following the insulation of potentially dangerous elements of power pylons (1.4 electrocutions/nest before insulation vs. 0.2 electrocutions/nest afterwards). Any differentially energised hardware components, closer than 60 cm apart, on half the power poles within 300 m of 58 Harris’s hawk Parabuteo unicinctus nests were insulated.


Referenced papers

Please cite as:

Williams, D.R., Child, M.F., Dicks, L.V., Ockendon, N., Pople, R.G., Showler, D.A., Walsh, J.C., zu Ermgassen, E.K.H.J. & Sutherland, W.J. (2019) Bird Conservation. Pages 141-290 in: W.J. Sutherland, L.V. Dicks, N. Ockendon, S.O. Petrovan & R.K. Smith (eds) What Works in Conservation 2019. Open Book Publishers, Cambridge, UK.