Middle Persian northern languages affected New Persian literature strongly. Also Great Khorasan’s dialects have preserved some linguistic features of those languages (eastern). While the Sogdian language was studied since long time ago but I have stressed on a new aspect of research in this note. The two bird names, Hoopoe and partridge, have been preserved as Pup/butis and Vartic by eastern dialectical texts and dialects. The author supposes that there is a linguistic relation between the suffixes in Pup/ butis and Vartic and Sogdian -tyak in the terms like ywry’ty’kh. The author believes that the northeastern suffixes -tis and -tic and Sogdian -ty’kh are the same and from a single form. Also I suggest that the function of the suffix was “noun-maker” and maybe “adjective-maker” in the past.