Cuckoo generally refers to cuckoo. Rhododendron grandiflora (scientific name: Cuculuscanorusbakeri) is a China subspecies of Rhododendron grandiflora. The body length is about 320 mm, the wing length is about 2 10 mm, and the male bird's upper body is pure dark gray; The wings are dark brown, white and mixed with brown spots; The tail is black and the top is white; The central tail feather has white fine spots along both sides of the feather axis; The chin, throat, upper chest, head and neck are light gray, and the rest of the lower body is white with dark brown horizontal spots.