Ecuadorian Ground Dove
Columbina buckleyi
The Ecuadorian ground dove is 18 cm (7.1 in) long and weighs about 57 g (2.0 oz). The male's forehead and face are grayish pink that darkens to a deep mauve pink on the breast and underparts. Its crown and nape are bluish gray and the upperparts brownish gray. The closed wing shows lines of black spots. The central tail feathers are gray and the rest black; the outermost have white tips. The female is browner than the male with less of a pink wash. Voice: The Ecuadorian ground dove's song is "a series of evenly-spaced, low-pitched slightly upslurred cooing notes...huWOO...huWOO...huWOO....".
ID text from Wikipedia, CC BY-SA 4.0

Plain-breasted Ground Dove
Columbina minuta
With a total length of approximately 14.5–16 cm (5.5–6.5 in) and a weight of 24–42 g (0.85–1.48 oz), this species averages slightly smaller than the common ground dove. The plain-breasted ground dove may be the smallest of the columbids by mass, though the more heavily built but almost tailless dwarf fruit dove of Southeast Asia is typically shorter in overall length. The plain-breasted ground dove has dark grey to brown plumage, with somewhat paler wings with dark violet spots; the underwings are mostly rufous. It has a grey bill, pink legs, and reddish eyes.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Ecuadorian Ground Dove and Plain-breasted Ground Dove.