Family Hummingbirds (Trochilidae)

Near Threatened

Black-thighed Puffleg (Eriocnemis derbyi)


French: Érione de Derby German: Schwarzfeder-Höschenkolibri Spanish: Calzadito patinegro

Trochilus Derbyi

DeLattre and Bourcier

, 1846,

Volcán de Puracé, near Popayán, Colombia


Closely related to E. nigrivestis and E. vestita. Populations at N end of range have a slightly longer bill; formerly regarded as race longirostris, but variation is clinal. Monotypic.


C Andes of Colombia (S from Tolima) and NW Ecuador (to Imbabura).

Descriptive notes

10 cm. Bill straight, blackish. Male shining golden-green above and below, underparts appearing black in certain lights; uppertail- and undertail-coverts are strongly... read more


Only known vocalization is a short buzzy trill “tzzrr”, repeated at irregular intervals, and given... read more


Inhabits humid forest borders and bushy pastures; in addition there are records from shrubby... read more

Food and feeding

Territorial; takes nectar of low-growing flowers such as Fuchsia and Ericaceae. Insects are caught by hawking.


Records from Puracé suggest season in Feb. Clutch two white eggs; incubation by female; first breeding in second year. No further... read more


Sedentary with seasonal altitudinal movements.

Status and conservation

Not globally threatened. CITES II. Currently considered Near Threatened. Restricted-range species: present in Northern Central Andes EBA. Generally uncommon to locally common... read more

Recommended citation

Heynen, I. & Boesman, P. (2019). Black-thighed Puffleg (Eriocnemis derbyi). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 6 December 2019).