2 Dippers fighting and chasing each other furiously on lower part of River Clyne today. Rival males, or male pursuing a female?
2 Dippers fighting and chasing each other furiously on lower part of River Clyne today. Rival males, or male pursuing a female?
Glamorgan Bird Club 
Based on your description I would assume it’s 2 males. They will definitely defend their stretch of the river.
Thanks!