Species names in all available languages
|English (United States)||Short-tailed Woodstar|
|French||Colibri à queue courte|
|Spanish (Ecuador)||Estrellita Colicorta|
|Spanish (Peru)||Estrellita de Cola Corta|
|Spanish (Spain)||Colibrí colicorto|
|Turkish||Kısa Kuyruklu Ormanyıldızı|
Short-tailed Woodstar Myrmia micrura
Version: 1.0 — Published December 12, 2014
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Short-tailed Woodstar is the sole species in the genus Myrmia. This is a small hummingbird with a very short tail; at rest, the wingtips extend beyond the tip of the tail. The bill is relatively short (for a hummingbird) and very slightly decurved bill. The upperparts are shining green. The male is mostly white below, with a violet gorget. The rectrices are narrow and stiff; the central rectrices are green and the outer rectrices are blackish. Females are cinnamon buff below. The central rectrices of the female are green; the outer rectrices are black, with white tips.
Short-tailed Woodstar readily is distinguishable from sympatric species by its very small size and very short tail. Purple-collared Woodstar (Myrtis fanny) is larger, longer tailed (especially in the male), and has a longer, more strongly curved bill.
The following description is based on Meyer de Schauensee (1970) and on Schuchmann (1999):
Adult male: Upperparts shining green. Rectrices narrow and stiff; central rectrices are green, outer rectrices are blackish. Distinct white lateral throat stripe. Gorget glittering violet. Breast band and belly white; flanks dingier.
Adult female: Upperparts as in male. Central rectrices green, outer rectrices are black, tipped with white. Underparts pale buffy whitish or cinnamon buff.
Immature: Central rectrices slender and pointed at tips; rectrices of immature female broader and more evenly rounded (Zimmer 1953).
Iris: black [= dark brown?]
Bare parts color data from specimens in the Louisiana State University Museum of Natural Science.
Total length: 6 cm (Ridgely and Greenfield 2001b)
Bill length: 13 mm (Ridgely and Greenfield 2001b)
Mass: female, mean 2.3 g (range 2.2-2.4 g, n = 3; specimens in the Louisiana State University Museum of Natural Science)