Bending their long necks, they scoop up mud, bird dung, and a few feathers to form a cone - shaped mound some 16 inches [40 cm] high.
Nad kuhjavad noka abil muda, linnusõnnikut ja mõningaid sulgi ning valmistavad sellest materjalist ligi poole meetri kõrguse koonusekujulise hunniku.