Power line collisions kill millions of birds annually worldwide, with migratory cranes particularly vulnerable, and mitigation technologies are proving highly effective when deployed.
Power line collision causes immediate severe injury or death to affected birds — a welfare harm that is both acute and preventable. The scale of this mortality is vast yet largely invisible to the public. For common species this represents population-level pressure; for rare cranes like the whooping crane, even small numbers of collision mortalities are conservation-significant. The technology to dramatically reduce collisions exists, is relatively inexpensive per km of line, and has been proven effective in numerous studies. The challenge is motivation — utilities require regulatory pressure or financial incentive to retrofit existing infrastructure. Advocacy for power line diverter mandates on migration corridors represents a high-impact, cost-effective animal welfare and conservation intervention.