Eric Walker added Hoatzin - Wikipedia to Opisthocomus hoazin
Eric Walker added The Bizarre Bird That’s Breaking the Tree of Life | The New Yorker and Hoatzin - Wikipedia to Opisthocomus hoazin, and added Opisthocomus hoazin to Opisthocomus
Eric Walker added Opisthocomus hoazin to Opisthocomus, and added Opisthocomus to Opisthocomidae