Watch Clip
![](http://image.pbs.org/video-assets/V6r5LAe-asset-mezzanine-16x9-gkV1Ky5.jpg?resize=410x)
Capercaillies Battle for the Right to Mate
2m 59s
Capercaillies, birds that live and breed amongst the Scots pines, have an intimate relationship with the tree. The males must compete for the right to mate exclusively with all the hen capercaillies.