The wood grouse is the biggest kind of grouse, and the males are twice as large as the females and can weigh up to 16 pounds.
Which was unlucky for this poor man who happened across one in Norway.
The bird got quite attached and clung to his shoelaces with its beak, and then followed him out of the grass and chased him down a dirt road when he tried to get away.
And then proceeded to beat him into submission with its wings (as the man curls himself into a ball to no avail. His friends have forsaken him and are having the time of their life from behind the camera from the sounds of it).