Effects on plant and animal life

With regard to possible changes in plant and animal life, based on the available information, it has been reported that possible relevant interferences  have been noted only with regard to the birds’ impact with the machine rotors. Generally collisions are rare, and mostly limited to birds of prey. Migratory birds  instead seem to adapt to the presence of these obstacles.
According to the US Fish and Wildlife Service  the leading cause of mortality in the birds are cats (about one billion birds a year), followed by buildings (a little less than a billion), hunters (about 100 million a year) and lastly vehicles, telecommunication towers, pesticides and high-tension lines (each category accounts for about 60-80 million birds a year); the contribution of wind power plants appears to be an extremely modest fraction.
The impact on plants is noted specially when setting up the power plant, with the construction of roads and  foundations, and when handling materials on site. Some measures are taken to reduce  the impact on the territory, for example planting plants when the site has been completed, or compensating the impact with improvements in the surrounding areas, in order to have a positive overall balance.
Concluding, if some measures are taken when designing a wind farm, among all the energy producing industries, wind power plants are among the cleanest and safest. During operation they do not produce polluting substances, dusts and heat, even after they are dismantled, the former pristine state can be restored without leaving any traces in the environment nor on the people.

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