Large pigeon with an elegant, silky appearance. Smooth, pearly gray below with dark gray wings, back, and tail (the first two can appear iridescent greenish in good light). Also note faint white eye-ring. Can be confused with Green Imperial-Pigeon, but Gray is much duller- and darker-winged. An inhabitant of forested offshore islands, where it is typically encountered singly or in pairs up in the canopy. Song is a low, booming “coOOOooouh”.