[INFORMATIVE] The Impact of Electricity on Birds: Risks and Solutions

The Impact of Electricity on Birds: Risks and Solutions
By: Preethi Senthil


The demand for electricity continues to grow over time to the point where it may be doubled by 2026. Both urban and rural areas increasingly exploit ecosystems to meet the needs of their people. This disruption damages habitats and affects the migration patterns of birds.

Power lines and wind turbines are two of the most common types of infrastructure that make migration significantly more difficult for birds by blocking their paths. When opportunities to nest and find food are reduced, bird populations also decline. Upon nesting on these infrastructures, birds become vulnerable to attacks from predators.Similarly, when the overall landscape of a location is changed to accommodate energy sources, the ability of birds to spot prey is disturbed.

Birds often collide with power lines, leading to significant mortality rates, which highlights the severity of the issue at hand. Due to poor visibility or rapid flying, birds may fall into these unavoidable circumstances. In the United States alone, estimates suggest that between 140,000 and 328,000 birds sustain injuries from wind turbines each year.

The larger the bird, the greater the risk—particularly if it is a raptor, eagle, hawk, or owl. The structure of an electric pole allows birds to have a clear view of their surroundings and spot prey. However, the disadvantages are far worse than the advantages, as they can lead to serious harm. Due to the size of their wings, these birds might end up completing an electric circuit by touching two wires at once while flying or perching, resulting in electrocution.

Some behaviors associated with breeding can be modified by the development of electrical infrastructure. Studies in the UK have established that skylarks changed how they sang and displayed to avoid areas around power lines, as they felt at risk. Such changes can disrupt mate attraction and territorial defense, leading to reduced populations.

The consequences will affect several species, including severely endangered species such as California condors.These losses pose significant threats to biodiversity. A case study in Spain showed that the population of the Spanish imperial eagle was reduced by 50% because of accidents on power lines. Such extinctions in local areas lead to imbalances and disruptions in ecosystems, as the lack of one species can affect another species that relies on its existence. This indicates the urgency of this situation and how quickly we need to work on diminishing it or, at least, reducing it.

Many techniques can be implemented to counter the adverse effects of electrical infrastructure on birds. One of these methods is marking power lines with visual markers to alert birds of the dangers ahead. Using brightly colored flags, balls, or similar items can significantly reduce airplane collisions.

Another method is to use insulation wires. If exposed wires are covered with an insulating material, the electrocution of birds that choose to perch on power poles can be avoided. Utility companies in California have adopted this strategy, which has helped the populations of various bird species flourish, further proving its effectiveness.

Implementing bird-friendly infrastructure can also be helpful. These poles prevent birds from nesting in unsafe places. In Arizona, Colorado, Idaho, New Mexico, Utah, and Wyoming, a program that replaced widespread power poles with avian-safe types reduced the electrocution of raptors, ensuring the sustainability of both the raptors and the power infrastructure.

By doing the following, we can see that these proactive measures not only curb the mortality rate of birds but also generate positive results. Creating safer environments for avian species will also lead to restored biodiversity.

The restoration of habitats will minimize the impact on bird populations because it directly addresses the decline in nesting and feeding sites due to electrical infrastructure. By preserving and rehabilitating natural habitats, birds can have a safe space to live and raise their young.

Working with conservationists, wildlife agencies, and utility companies to design and bring about projects that can balance electricity needs with wildlife protection will ensure that electrical infrastructure is integrated while keeping conservation goals in mind. An environmental assessment will allow identification of critical habitats and migratory paths that must be conserved at all costs.

Another innovative way to protect birds is to establish buffer zones near important habitats and examine the configuration of power lines to minimize their risk. This co-integrated approach promotes the development of humans and wildlife.

In conclusion, it is fundamental to take the necessary actions to prevent the risks to bird populations from electrical infrastructure. The discussion above highlights threats such as habitat loss, collisions, and electrocution, which are not only dangerous to birds but also to biodiversity. To protect these important species, readers, policymakers, and researchers are encouraged to advocate for changes in infrastructure that are bird-friendly and to support conservation initiatives. In this way, we can enhance the overall state of our planet.


References
International Energy Agency. (2024). Electricity 2024: Executive summary. https://www.iea.org/reports/electricity-2024/executive-summary

Moreira, F., Martins, R. C., Aguilar, F. F., Canhoto, A., Martins, J., Moreira, J., & Bernardino, J. (2023). Long-term management practices successfully reduce bird-related electrical faults in a transmission grid increasingly used by white storks for nesting. Journal of Environmental Management, 327, 116897. https://doi.org/10.1016/j.jenvman.2022.116897

DeGregorio, B. A., Weatherhead, P. J., & Sperry, J. H. (2014). Power lines, roads, and avian nest survival: Effects on predator identity and predation intensity. Ecology and Evolution. https://www.researchgate.net/publication/261223034

IAF. Bird electrocution: Why birds die on powerlines – and how we can stop it. https://birdelectrocution.org/avian-electrocution/

Layton, J. (n.d.). Do wind turbines kill birds? HowStuffWorks. https://www.howstuffworks.com/environmental/green-science/wind-turbine-kill-birds.htm

National Park Service. California condors. https://www.nps.gov/subjects/condors/threats.htm

Amezian, M., Irizi, A., Errati, A., Loran, H., El Khamlichi, R., Morandini, V., González, D., & Garrido, J. (2015). Spanish imperial eagles and other eagles found electrocuted in Morocco and proposition of correction measures. https://doi.org/10.6084/m9.figshare.1613292

PERC. (2022, July 26). Using markets to limit eagle mortality from wind power. https://perc.org/eagle-mortality

Warren, T. (2021, October 12). Why can birds sit on power lines? EnergyBot. https://www.energybot.com/blog/why-can-birds-sit-on-power-lines.html

U.S. Nuclear Regulatory Commission. (2006). Suggested practices for avian protection on power lines: The state of the art in 2006. https://www.nrc.gov/docs/ML1224/ML12243A391.pdf

Dwyer, J. F., Harness, R. E., & Eccleston, D. (2017). Avian electrocutions on incorrectly retrofitted power poles. Journal of Raptor Research, 51(3), 305–312. https://doi.org/10.3356/JRR-16-93.1
Conservation Evidence. Set minimum distances for approaching birds (buffer zones). https://www.conservationevidence.com/actions/310

Comments

Popular Posts