Bible Dictionary · S
Sparrow
Mentioned among the offerings made by the very poor. Two sparrows were sold for a farthing (Matt 10:29), and five for two farthings (Luke 12:6). The Hebrew word thus rendered is tsippor, which properly denotes the whole family of small birds which feed on grain (Lev 14:4; Ps 84:3; Ps 102:7). The Greek word of the New Testament is strouthion (Matt 10:29–31), which is thus correctly rendered.
From Easton’s Bible Dictionary (1897), by Matthew George Easton.