Macropygia is a genus of bird in the pigeon and dove family Columbidae. The genus is one of three genera known as cuckoo-doves.
Columbidae, Columba: Latin columba (“dove, pigeon”). Ancient Greek κόλυμβος (kólumbos, “a diver”), from κολυμβάω (kolumbáō, “dive, plunge headlong, swim”).
Macropygia: the Ancient Greek makros meaning "long" or "deep" and "-pugios" meaning "-rumped").

1/ Little cuckoo-dove (Gầm ghì đầu hung, Macropygia ruficeps) 
2/ Barred cuckoo-dove (Gầm ghì vằn, Macropygia unchall)