Large pigeon of marshy savannas, riversides, open areas with scattered trees, locally even in towns, such as Villahermosa, Mexico. Gray head contrasts with pinkish body, and whitish belly does not contrast strongly with plain grayish tail; compare darker Red-billed Pigeon, which often occurs in same areas but prefers drier and more forested habitats. Also note black bill of Pale-vented, and subtly distinctive song: after long introductory coo, repeated phrase is typically a 3-syllable "who’koo-koo", unlike 4-syllable "oo’koo-koo-koo" of Red-billed.