Humans unintentionally expose raptors to a variety of lethal collision hazards, most notably road vehicles (Massemin and Zorn 1998), wires (Jenkins et al. 2010), and wind turbines (Loss et al. 2013). Other human-related sources of frequent raptor mortality are electrocutions on distribution lines (Lehman et al. 2007), ingestion of pesticides and other synthetics (Goldstein et al. 1999), and lead poisoning from bullet fragments and shotgun pellets in the remains of gun-killed animals (Pain et al. 2009). These last three factors involve the attraction of raptors to potentially lethal situations, and all can be remedied at their source: the first by deploying safer poles (Lehman et al. 2007), the second by substitution with safer chemicals (Oaks et al. 2004), and the third by the use of non-lead projectiles (Watson et al. 2009).
Where...