I Kicked a Bird and I Liked it Achievement

This achievement is a little odd, but you should be able to unlock it by kicking a vulture that is sitting on a fence. Even if it isn't in flight, it appears to unlock if the bird is simply not on the ground. Otherwise, vultures swoop in to eat dead bodies often, so just run at one and press  to try and boot it in the face.

https://www.youtube.com/watch?v=AJ5S9dqylV4