Zi Collection, Page Position: Lower Radical: Short-tailed bird (zhuī) Page 912, Entry 14 In the Collection of Rhymes Classified by the Five Sounds (Wuyin Jiyun), the character for a pair of birds is commonly written in a variant form (luan). It refers to birds in a pair. For detailed annotations, see the section under the Radical: Short-tailed bird (zhuī) at the eight-stroke position.