What is "francolinus"

Francolinus is a genus of birds in the francolin group of the partridge subfamily of the pheasant family. Its five species range from western and central Asia through to southern and south-eastern Asia. The species are:

• Black francolin, Francolinus francolinus
• Painted francolin, Francolinus pictus
• Chinese francolin, Francolinus pintadeanus
• Grey francolin, Francolinus pondicerianus
• Swamp francolin, Francolinus gularis