The Bearded Helmetcrest (Oxypogon guerinii) is a species of hummingbird in the family Trochilidae. It is found in Colombia and Venezuela. Its natural habitat is subtropical or tropical high-altitude grassland, known as páramo.
Measuring 114 mm (4.5 in) in length, it is a small hummingbird with a very small 8 mm (0.3 in) bill.
The Bearded Helmetcrest is found in the Andes, ranging from altitudes of 3600 to 4500 m (12000–15000 ft) in Venezuela, and 3200 to 5200 m (10500 to 17000 ft) in Colombia.