Visual fields, foraging and collision vulnerability in Gyps vultures

摘要: The visual fields of vultures contain a small binocular region and large blind areas above, below behind the head. Head positions typically adopted by foraging suggest that these provide comprehensive coverage ground below, prohibit eyes from imaging sun extensive laterally. However, will often be in direction travel. We conclude erecting structures such as wind turbines, which extend into open airspace, humans have provided perceptual challenge vision cannot overcome.