Green-headed hillstar

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Green-headed hillstar
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Apodiformes
Family: Trochilidae
Genus: Oreotrochilus
Species: O. estella
Subspecies: O. e. stolzmanni
Trinomial name
Oreotrochilus estella stolzmanni
Salvin, 1895

Oreotrochilus stolzmanni

The green-headed hillstar (Oreotrochilus estella stolzmanni) is a species of hummingbird found in the Andes in far southern Ecuador and northern and central Peru in alpine grassland and scrub at altitudes of 3,600 to 4,200 metres (11,800 to 13,800 ft).

It is usually considered a subspecies of the Andean hillstar, Oreotrochilus estella, but the male of that species has duller upperparts and a brown (not black) line to the central underparts.

The binomial name commemorates Polish ornithologist Jan Sztolcman (Jean Stanislaus Stolzmann).


  • Handbook of the Birds of the World. Vol. 5, J. del Hoyo, A. Elliott & J. Sargatal (eds.), Barcelona, 1999
  • Hummingbird splits