White-faced Quail-Dove
Zentrygon albifacies
The white-faced quail-dove is 28 to 31.5 cm (11.0 to 12.4 in) long. Eleven specimens had weights ranging from 158 to 339 g (5.6 to 12.0 oz). Adults' crowns are gray, from very light in front fairly deep at the back and into the nape. The hindneck and sides of the neck are cinnamon; on the latter loose feathers give the impression of dark furrows. The rest of the upperparts are chestnut and the back has a bluish violet gloss. The wings are dark dusky grayish brown. The face is pale grayish buff and the chin and throat pale buff. Voice: The white-faced quail-dove's song is "a low, hollow, mournful whoooo or whoo'oo."
ID text from Wikipedia, CC BY-SA 4.0
White-throated Quail-Dove
Zentrygon frenata
The white-throated quail-dove is 30 to 34 cm (12 to 13 in) long and weighs about 311 g (11 oz), making it among the largest quail-doves. The adult nominate subspecies Z. f. frenata male's forehead and the lower part of the face are buff and the crown blue-gray. The mantle is deep purple and the rest of the upperparts reddish brown. The throat is white, the breast gray, and the belly and flanks dark buff. Females are browner rather than gray; juveniles are similar to the female with the addition of dark barring on both the upper and underparts. Voice: The white-throated quail-dove's song is "a single monotonous low-pitched note 'whoOOo', with highest amplitude in the middle."
ID text from Wikipedia, CC BY-SA 4.0

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