bantam
/ˈbæn(t)əm/
noun
A chicken of a small breed, the male of which is noted for its aggression.
tiny,small,little,petite,minute,miniature,mini,minuscule,microscopic,nanoscopic,small-scale,compact,pocket,toy,midget,undersized,short,stubby,elfin,dwarfish,dwarf,pygmy,bantam,homuncular,Lilliputian