Oxypogon stuebelii
The Buffy Helmetcrest (Oxypogon stuebelii) is a spectacularly ornamented hummingbird, measuring approximately 11-13 cm in length and weighing 4.8-5 g. This striking species is instantly recognizable by its long, pointed, and shaggy white crest, often appearing buff-tinged, contrasting with a dull green body. Males boast an iridescent, spangled emerald-green gorget bordered by a prominent white "beard" that extends to either side of the throat, while females are duller, lacking the iridescent ...
This species exclusively inhabits high-altitude paramo and sub-páramo grasslands, shrublands, and humid montane forests, typically found between 3,000 and 4,800 meters (9,800-15,700 feet) above sea level, particularly in areas dominated by Espeletia plants.
The primary diet consists of nectar, predominantly from the characteristic Espeletia (frailejones) plants, supplemented with small insects and spiders caught by hawking or gleaning from vegetation.
Buffy Helmetcrests are diurnal and highly active, primarily spending their days foraging for nectar and insects among the paramo vegetation. They employ a characteristic hover-and-feed strategy, darting between flowers, particularly the large inflorescences of Espeletia species. Males are known t...
The Buffy Helmetcrest is an extremely range-restricted species, endemic solely to the high-altitude paramo ecosystems of the Cordillera Oriental of the Colombian Andes. Its distribution is primarily concentrated in the departments of Boyacá and Santander, with scattered populations extending sout...
Endangered
- The Buffy Helmetcrest was historically considered a subspecies of the White-bearded Helmetcrest (Oxypogon guerinii) but was elevated to full species status in 2017 based on genetic and morphological differences. - It is one of only four species in the genus Oxypogon, all of which are found excl...