I would love to see some pictures of vultures attacking a healthy critter. We have them here and I have never witnessed a vulture attack a healthy animal. My pens are all covered but not because of a vulture attack but from hawks, eagles and owls. They may take very young small and week animals but are primarily scavengers. There are a lot of predators for sea turtle hatchlings among other wildlife. Their journey is perilous. I do think that vultures are primarily scavengers. Here most of our predators are coyotes. I have witnessed vultures eating a wild boar that had been hit by a car. I read the articles cited in the above post and it said in both,
"Even though most folks find the birds repugnant, vultures fill an important niche in nature. They are the clean-up crew. This lifestyle demands certain adaptations."
"A major adaptation is food. Carrion, or dead matter, makes up most of both vultures' diets. But black vultures may include newborn animals, chicks and eggs in their menu. They will also eat grass and vegetable matter."
"Mostly carrion. Feeds on carcasses of dead animals of all sizes. At times also eats eggs of other birds, turtles, lizards. May kill and eat young of some birds, sea turtles; sometimes eats newborn young of larger mammals. Also eats some plant material, such as coconuts and rotting vegetables. Will scavenge scraps of refuse from garbage dumps."
I think they prefer to scavenge. I didn't find anything on vultures ganging up on larger animals and killing them. I believe this is probably rare. I couldn't find anything on people actually witnessing this. If someone has documentation/pictures, that would be interesting. Just curious.