Grey-breasted Sabrewing
Campylopterus largipennis
The grey-breasted sabrewing is a large hummingbird, 12.4 to 14.9 cm (4.9 to 5.9 in) long. Males weigh 9 to 10 g (0.32 to 0.35 oz) and females about 7 to 8 g (0.25 to 0.28 oz). The sexes have almost identical plumage. Their bill is slightly decurved; the maxilla is black and the mandible pinkish with a black tip. The nominate subspecies' upperparts are dark shining green and the underparts dark gray. They have a white spot behind the eye. Their central pair of tail feathers is green and the rest bluish black on their inner half and white on the outer. Subspecies C. l. obscurus (with C. l. Voice: The grey-breasted sabrewing makes "repeated short chik or trzik" calls and "occasionally a faster stuttering series." What is thought to be its song is the "same call note delivered in a more regular continuous series."
ID text from Wikipedia, CC BY-SA 4.0
Napo Sabrewing
Campylopterus villaviscensio
The Napo sabrewing is about 13.5 cm (5.3 in) long. Males weigh 7.4 to 9.3 g (0.26 to 0.33 oz) and females 5.2 to 7.4 g (0.18 to 0.26 oz). Both sexes have an almost straight black bill and a white spot behind the eye. The male's crown is glittering golden green and the rest of its upperparts bronzy green. Its throat and chest are dark violet-blue and the rest of its underparts dark gray with green spots. Its central tail feathers are bronze-green and the rest dark blue. Females have entirely emerald green upperparts and gray underparts. Voice: The Napo sabrewing's song is "a long series of two notes repeated continuously at evenly spaced intervals 'tslip...tseek...tslip...tseek...' or 'trrip...tseek...trrip...tseek'." Its calls include "a single 'chip' or doubled 'chirrip'" that sometimes become a short rattle.
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: Grey-breasted Sabrewing and Napo Sabrewing.