Andean hillstar
| Andean hillstar | |
|---|---|
| Male above, female below | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Aves | 
| Clade: | Strisores | 
| Order: | Apodiformes | 
| Family: | Trochilidae | 
| Genus: | Oreotrochilus | 
| Species: | O. estella | 
| Binomial name | |
| Oreotrochilus estella (d'Orbigny, 1838) | |
| Combined distribution (green) of Andean and green-headed hillstars in South America | |
The Andean hillstar (Oreotrochilus estella) is a species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae. It is found in Argentina, Bolivia, Chile, and Peru.