Seagull attacks seagull - Brutal wild life drama

This dramatic bird attack was captured in Traena, Norway on July 16th 2016. I live on an island and we are surrounded by these birds, but have never seen anything like this. Was this caused by lack of food or was the attacked bird already injured and an easy target? I don't know. As the attacker did not seem to give up, I finally chased him away from the injured bird, so it could escape.
I created this video with the YouTube Video Editor (http://www.youtube.com/editor)

Видео Seagull attacks seagull - Brutal wild life drama канала Thore Hopperstad