The grounds also qualify as a Local Biodiversity Site (LBS). The Scottish Ornithologists Club (SOC) have identified Spier's as a site for birdwatching with, amongst others, tits, finches, thrushes, greater spotted woodpecker, chiffchaff, blackcap, willow and garden warbler.Birdwatching in Ayrshire and Arran. No. 28. Spier's School Grounds. 2003. An unusual bird migrant record for the school grounds in the 1920s is that of the mealy redpoll (Carduelis flammea flammea). It breeds across the northern parts of North America and Eurasia.Paton, E. Richmond and Pike, Oliver G. (1929). The Birds of Ayrshire. London : H. F. & G. Witherby. p. 19.
