Most ducks lack the roosting instinct that chickens have. Apparently Muscovy ducks are a notable exception, they'll roost in coops, on roofs, and in trees like

Most ducks lack the roosting instinct that chickens have. Apparently Muscovy ducks are a notable exception, they'll roost in coops, on roofs, and in trees like chickens do. https://en.wikipedia.org/wiki/Muscovy_duck#/media/File:Muscovy_Ducks_(Cairina_moschata)_couple_perched_for_the_night_..._(27751132099).jpg https://en.wikipedia.org/wiki/Muscovy_duck#/media/File:Musco...