The Austronesian Comparative Dictionary

*siwsiw to cheep; baby chick

PAN siwsiw to cheep; baby chick

Form.
Amis ciwciw baby chick, baby bird
Puyuma pa-s<al>iwsiw noise made by cheeping (as by baby chicks looking for their mother)
siwsiw-an chicks, small birds
siwsiw to cheep
WMP
Itbayaten siwsiw baby chick
Pangasinan siwsíw chick
Ayta Abellan hiwhiw chick
Hanunóo sisíw chick
Murut (Tagol) sisiw baby chick
Proto-Minahasan sisi chicken (baby fowl)