Game birds include guineafowl, Swainson's spurfowl and crested francolin. Swamp francolin and rufous-vented grass babbler occur as well. They are compatible with crestless firebacks and eared pheasants but not with junglefowl or francolin. Game birds include the swamp francolin, Bengal florican, and pale-capped pigeon. The Coqui francolin ("Peliperdix coqui") is a species of bird in the family Phasianidae. Rare birds include black francolin and grey-headed fish eagle. The only similar species is the painted francolin, which has a rufous vent. This bird is a medium-sized francolin, with males averaging and females averaging . The black francolin only flies when disturbed. It is believed to be the most widespread francolin in Africa. The pair befriended the human Francolin upon arrival on earth. Other interesting species include Red-winged Francolin, the African black swift and the Sentinel rock thrush. Most of the species within the genus formerly included "francolin" in their common name.