Grey-breasted Sabrewing

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."