Blue-tufted Starthroat
Heliomaster furcifer
The blue-tufted starthroat is 12.6 to 13 cm (5.0 to 5.1 in) long and weighs 5 to 6.5 g (0.18 to 0.23 oz). Both sexes of all subspecies have a long, decurved, black bill and a small white spot behind the eye. Both have a forked tail but the female's is less deeply indented than the male's. Males in breeding plumage have an emerald green crown, nape, and upper back; the rest of the upperparts are shining coppery green. The throat is glittering violet. The underparts and elongated feathers on the sides of the neck are iridescent ultramarine. Voice: The blue-tufted starthroat does not appear to have a conventional song. It does make "a descending, pure-whistled 'tseep'" call.
ID text from Wikipedia, CC BY-SA 4.0
Stripe-breasted Starthroat
Heliomaster squamosus
The stripe-breasted starthroat is 11.2 to 12.4 cm (4.4 to 4.9 in) long and weighs 5 to 6.5 g (0.18 to 0.23 oz). Both sexes have a long, slightly decurved, black bill, a white streak behind the eye, and a white "moustache". Both have a forked tail but the female's is less deeply indented than the male's. Males in breeding plumage have bronzy green upperparts with an iridescent green crown. Their gorget is glittering violet and the sides of it flare out. Their underparts are greenish-black with a white stripe down the middle. The central tail feathers are black and the rest are dark blue-green. Voice: What is thought to be the stripe-breasted starthroat's song is "a subdued, buzzy scratchy warble 'bzzzrrrr..bzzzrrr..chi-chi-chi-chi..bzrrr'." It also makes "a liquid 'tsik'" call.
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: Blue-tufted Starthroat and Stripe-breasted Starthroat.