TexasBred":2ums88eu said:
I've been lucky so far but have had to run them away from a fresh born calf a couple of times. The turkey vulture is a much larger than the mexican vulture. The mexican vulture is much more aggressive. I can't prove it but the mexican vulture seems to be attracted by blood whereas the turkey vulture seems to be more attracted to the small of rotting flesh.
Not according to Wikipedia at least by weight, Richard. Turkey Vulture has greater Wing span. They appear to me to be the same size. They congregate together. I often see them sharing a fawn cut up in the disc mower. They look the same size here.
From Wikipedia:
Black or Mexican Vultures.
The black vulture is a fairly large bird of prey, measuring 56–74 cm (22–29 in) in length, with a 1.33–1.67 m (52–66 in) wingspan. Weight for Black Vultures from North America and the Andes ranges from 1.6–2.75 kg (3.5–6.1 lb).
Turkey Vulture.
A large bird, it has a wingspan of 160–183 cm (63–72 in), a length of 62–81 cm (24–32 in), and weight of 0.8 to 2.3 kg (1.8 to 5.1 lb).