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Resource Documents: Vultures (2 items)
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Griffon vulture mortality at wind farms in southern Spain: Distribution of fatalities and active mitigation measures
Author: de Lucas, Manuela; et al.
Abstract: Wind is increasingly being used as a renewable energy source around the world. Avian mortality is one of the negative impacts of wind energy and a new technique that reduces avian collision rates is necessary. Using the most frequently-killed species, the griffon vulture (Gyps fulvus), we studied its mortality at 13 wind farms in Tarifa, Cadiz, Spain, before (2006–2007) and after (2008–2009) when selective turbine stopping programs were implemented as a mitigation measure. Ten wind farms (total of 244 . . .
More »Visual fields, foraging and collision vulnerability in Gyps vultures
Author: Martin, Graham; Portugal, Steven; and Murn, Campbell
Abstract: The visual fields of vultures contain a small binocular region and large blind areas above, below and behind the head. Head positions typically adopted by foraging vultures suggest that these visual fields provide comprehensive visual coverage of the ground below, prohibit the eyes from imaging the sun and provide extensive visual coverage laterally. However, vultures will often be blind in the direction of travel. We conclude that by erecting structures such as wind turbines, which extend into open airspace, . . .
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