Decided to spend some time outdoors between the two legs of the evening "Rugby Run". Headed to the Robertson Car Park south of Paisley, and enjoyed a very pleasant walk on the Gleniffer Braes in still, mild conditions. Almost the first bird encountered on leaving the car was a bright male Wheatear on the fence which runs along the south side of the car park. Other birds in the area included Chiffchaff, Willow Warbler and a single Mallard. Heading further south, heard the unmistakable song of a Cuckoo. Thereafter, spent a good half hour watching the bird as it flew between blocks of conifers, sang loudly from various treetops and attracted the attention of several other birds including Carrion Crow and Blackbird. Back at the Rugby Club, two Swallows flew over.