Electrocution on Power Lines Threatens Expanding Harpy Eagle Territories

Modern power grids create lethal perches for this rainforest predator.

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Large raptors are among the bird groups most susceptible to power line electrocution globally.

As infrastructure expands into tropical forests, Harpy Eagles increasingly encounter electrical lines and utility poles. Large raptors are vulnerable to electrocution when wings contact multiple conductors simultaneously. In fragmented habitats, power lines may cut across former hunting routes. Because Harpy Eagles have broad wingspans, the risk of bridging electrical gaps increases. Conservation groups have documented raptor electrocutions worldwide, including in neotropical regions. For a slow-breeding species, even occasional infrastructure mortality can have outsized impact. Modern energy networks unintentionally introduce new lethal hazards.

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Unlike natural threats, electrocution offers no evolutionary adaptation pathway. The physics of electricity operates instantly and fatally. When a breeding adult is lost to a power line, replacement may take years. Mitigation measures such as insulating lines exist, but implementation varies widely. Each infrastructure expansion into forested areas compounds risk.

As rural electrification spreads across tropical regions, balancing development with wildlife safety becomes critical. Apex predators like the Harpy Eagle are especially vulnerable because of their size and territorial behavior. Preventing electrocution requires engineering foresight and regulatory enforcement. Without it, technological progress may silently remove the canopy’s most powerful hunter.

Source

BirdLife International

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