The Norwegian Photographer Arnt Berget had a little bit of fun by burping to a male Tetrao Urogallus (Western capercaillie). The big bird took this as
a challenge to a duel and he charged and attacked. Berget had to hide in his car while the bird were furiously attacking the windshield. He took some
interesting photos. Driving the car backwards and forwards made the bird even more crazy. The fight ended when Berget trew an orange colored fur out
of his car. The bird jumped on top of the fur and were showing off, dancing around. The bird accepted the fur and "won" by chasing the intruder out
of his domain. Berget said he also filmed the whole thing and he gave the film to a television-channel.