When you perform oral sex on a dead woman with a lot of pubic hair.

the whale tail is the shape formed when a g-string rides up high over a womans trousers

A sexual predator. Could be a man or a woman.

Just like the bird, a bearded vulture naturally preys on potential predators. The ultimate goal is sexual intercourse. He has 20/20 vision and spends most of the time spying on his/her 'victims'. That helps evaluate the situation and 'attack' at the right time.

With that said, this person is still a very naive and a weak predator compared to what he can become. When he gains enough experience he has the chance of evolving to a vulture, earning him or her a higher success rate and many more traits.