I dropped into Clyde Muirshiel Regional Park this morning while I was in the Lochwinnoch area for something else. Almost the first birds seen were two Cuckoos (presumably a pair) swooping and flying very fast around the area of the Visitor Centre.  Other good birds were five warblers in song (Willow Warbler, Blackcap, Garden Warbler, Whitethroat and Wood Warbler), Common Sandpiper and Grey Wagtail on the river, displaying Goldfinch, Siskin and Redpoll and a Carrion Crow mobbing a Buzzard overhead.