Bird Guide

Peruvian Sheartail vs Xantus's Hummingbird

Peruvian Sheartail (Thaumastura cora)

Peruvian Sheartail

Thaumastura cora

Tiny2 gShrubland

The male Peruvian sheartail is about 14 cm (5.5 in) long and weighs about 2.5 g (0.088 oz). The female about 7.5 cm (3.0 in) long and weighs about 2.6 g (0.092 oz). It is among the tiniest hummingbirds. Both sexes have a short, straight, black bill. Both sexes have metallic green upperparts, including the top of the face, that are darker towards the tail. The female's green has a faint beige tinge. Both sexes have an indistinct white spot behind the eye. Males have an iridescent magenta gorget that appears cyan or black at different angles; the female's throat is cream. Voice: The male Peruvian sheartail's song is "squeaky, incessant, undirected has at least 4 syllables". It is given from a perch or during the shuttle flight and can last a minute or more. Shorter versions are given during agonistic encounters with other males. Both sexes make "a short chip call".

ID text from Wikipedia, CC BY-SA 4.0

Photo: nmoorhatch · CC BY 4.0
Xantus's Hummingbird (Basilinna xantusii)

Xantus's Hummingbird

Basilinna xantusii

Tiny3 gShrubland

Xantus's hummingbird is 8.5 to 9.5 cm (3.3 to 3.7 in) long. Males weigh an average of 3.5 g (0.12 oz) and females 3.4 g (0.12 oz). Their bills are straight and about 1.7 cm (0.67 in) long; males' are red with a black tip. Females' maxilla is black with a pinkish base and their mandible pinkish red with a black tip. Males have a golden green to emerald green crown, nape, and upperparts with rufous edging on the uppertail coverts. Their forehead and chin are black, their face mostly black with a wide white stripe behind the eye, and their throat iridescent emerald green. Voice: The male Xantus's hummingbird sings from within or under a bush, "a quiet, rough, gurgling warble, at times interspersed with rattles...and high, squeaky notes.

ID text from Wikipedia, CC BY-SA 4.0

Photo: marlin harms · CC BY 2.0

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Photos and recordings are credited to their authors under the licence shown. Full profiles: Peruvian Sheartail and Xantus's Hummingbird.