Bird Fact Friday – Hillstars

Adapted from page 157 of Birds of Chile:

The Andean Hilstar is found in the North Andes, and is a common resident south of Tarapacá. They frequently populate scrubby valleys, villages, and rocky slopes with scattered shrubs. They often cling to flowers when feeding, but have also been known to feed on the ground. They have bulky nests (often made of alpaca wool), which are placed under the eaves of buildings, bridges, or rock faces. Their call is a high, slurred tswic, often made in a short series. They are distinctive in their range, with a flashy white tail. Males have an emerald gorget; females are dull overall. 

A male Andean Hillstar (Oreotrochilus estella)

A male White-sided Hillstar (Oreotrochilus leucopleurus)

White-sided Hillstars are found in the central Andes, and are a fairly common breed south of Aysén. In the winter, however, they are known to move downslope to southern Antogagasta. They frequently inhabit rocky slopes, scrubby valleys, or bogs. Their habits and voices are similar to Andean Hillstars, but their range has little, if any, overlap. Males are recognizable by their broad, inky blue-black belly stripe. Females have a dark, subterminal tail band, extending across their outer feathers. 

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Birds of Chile
A Photo Guide
By Steve N. G. Howell & Fabrice Schmitt

This is the first modern-style photographic field guide to the birds of Chile, an increasingly popular destination with birders and naturalists. Compact and easy to carry, pack, and use, Birds of Chile is ideal for curious naturalists and experienced birders alike, providing everything anyone needs to identify the birds they see. Clear photographs and brief, facing-page species accounts highlight what to look for and how to quickly identify species. The photos include both close-ups and birds-in-habitat images to further aid real-life identification. An introduction and maps provide an overview of Chile’s geographic regions and their distinctive birdlife. Birds of Chile is also a great resource for birding in nearby countries, especially Argentina, Bolivia, and Peru.

  • The first field-friendly photographic guide to the birds of Chile
  • More than 1,000 real-life photos and brief, facing-page text make bird identification easy
  • Overview and maps describe the distinct bird regions of Chile
  • Perfect for curious naturalists and experienced birders alike
  • Compact and easy to carry and pack
  • Also a great resource for birding in Argentina, Bolivia, and Peru


This post is part of a series, explore additional posts here<< Bird Fact Friday — The Ducks of ChileBird Fact Friday: the Caracaras of Chile >>