Poyoko

Poyoko (ミノルガー) is a flying chicken Mechaniloid from Mega Man ZX Advent that has evolved and developed the ability to both fly and reproduce by itself. However, its wings have gradually devolved as consequence, as they can only fly at low altitudes. It's only a matter of time before they completely lose the ability to fly. They are capable of dropping egg-shaped explosives. Poyokos appear in Train 3, Arctic Ice Floe 2, and Oil Field 1.