An enormous pigeon of lowland swamp forest. Blue-gray body and maroon chest. Differs from other crowned pigeons by its long white-tipped crest and pale gray wing patch tipped with maroon. Claps its wings very loudly when it takes off. Forages on the forest floor for fallen fruit. Courtship display includes rocking whole body forward and fanning tail, then lifting wings. Unmistakable and does not overlap with other crowned-pigeons. Voice a deep, upslurred booming call. Also regular deep hooting notes.