Black-throated Mango
Anthracothorax nigricollis
The black-throated mango is 10.2 to 14 cm (4.0 to 5.5 in) long and weighs 6 to 9 g (0.21 to 0.32 oz). Both sexes of both subspecies have a slightly decurved black bill. Adult males of the nominate subspecies have a metallic bronze-green crown, nape, and upperparts. Their innermost pair of tail feathers are dusky bronze green and the outer four pairs are metallic magenta-rufous with dark blue edges and a violet sheen. Their wings are grayish brown. They have a black chin, throat, and middle of the chest with metallic bluish green beside it and to the vent. Voice: The black-throated mango is not highly vocal. Males sing from trees, "rendered hsl-hsl-hsl-hsl-hsl-hsl-hsl". Its calls include twick or tiuck and a tsick.
ID text from Wikipedia, CC BY-SA 4.0
Green-breasted Mango
Anthracothorax prevostii
The green-breasted mango is 10.3 to 12.1 cm (4.1 to 4.8 in) long and weighs 5.7 to 7.0 g (0.20 to 0.25 oz). Both sexes of all subspecies have a slightly decurved dull black bill. Adult males of the nominate subspecies A. p. prevostii have metallic bronze green crown, nape, and upperparts. Their innermost pair of tail feathers are dull dusky bronze green to dull coppery bronze, and the outer four pairs are shades of purple with a metallic gloss. Their wings are dusky brownish slate. They have a velvety black stripe down their chin, throat, and chest with metallic bluish green beside it. Voice: The green-breasted mango is not highly vocal. Its song is "a buzzy and repetitive tsi si-si-si si-si-si" with up to 17 notes. Its calls include a "short, high, and sharp sip or sik" in flight, a "harsh chipping, chik chik chik" while feeding or perched, and a "high, shrill, slightly tinny twittering" during agonistic encounters.
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: Black-throated Mango and Green-breasted Mango.