Buffy helmetcrest

The buffy helmetcrest (Oxypogon stuebelii) is a Vulnerable species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is endemic to Colombia.

The buffy helmetcrest is 11.2 to 12.7 cm (4.4 to 5.0 in) long. It has a short straight black bill. The male has a long buffy and black crest and a mostly black face with a buffy-white "collar". Its upperparts are bronzy green. It has a thin glittering green and blue gorget that forms a "beard". The rest of the underparts are grayish bronzy that blends to cinnamon-buff on the undertail coverts. The tail is moderately long and forked. Its upper side is coppery to bronzy green with the outer feathers showing a wide white stripe; the underside is rufous with some pale cinnamon. The adult female is similar to the male but lacks the crest and beard, and its underparts are rufous buff to brownish with greenish flecks. Juveniles resemble the adult female; the male has a partial crest and beard.