Bird Identifier
Lucifer Hummingbird (Calothorax lucifer)
Flickr - ggallice - Hummingbird by Geoff Gallice from Gainesville, FL, USA, via Wikimedia Commons, licensed under CC BY 2.0
hummingbird

Lucifer Hummingbird

Calothorax lucifer

A rare desert hummingbird with a distinctly curved bill and, in males, an elongated glittering purple gorget.

Size
8.5-9.5 cm (3.5 in) long, 11 cm wingspan
Habitat
desert scrub and agave-studded slopes
Type
hummingbird

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Overview

The Lucifer Hummingbird is a scarce and sought-after species found in the United States only in a small area of desert borderlands. Adult males are striking, with a slender, distinctly decurved bill, a green back, and an iridescent purple gorget whose feathers extend outward into elongated points along the sides of the neck, along with a deeply forked tail. Females lack the colorful throat, showing a green back, buffy underparts, and the same curved bill, which helps distinguish them from other female hummingbirds.

How to identify it

Key Field Marks

  • Distinctly decurved (downward-curving) bill in both sexes
  • Male: elongated, glittering purple gorget with pointed sides, deeply forked tail
  • Female: green back, buffy underparts, curved bill, no gorget
  • Small overall size

Similar Species

  • Black-chinned Hummingbird has a straight bill and a black-and-purple, not fully purple, gorget.
  • Costa's Hummingbird has a straight bill and violet crown as well as throat.
  • The curved bill is the most reliable mark separating Lucifer Hummingbird from similarly sized relatives.

Habitat & range

Habitat

Lucifer Hummingbirds favor arid, agave- and ocotillo-rich desert slopes and canyons, often in rugged, rocky terrain.

Range

In the United States, it is found in very limited numbers in the Big Bend region of west Texas and parts of southeastern Arizona, with the core of its range in the highlands of central and northern Mexico.

Migration

U.S. populations are summer visitors, arriving in spring to breed and withdrawing south into Mexico by fall.

Behavior & voice

Behavior

Males are territorial around stands of blooming agave, a key nectar source, and perform display flights to attract mates during the breeding season.

Voice

Calls include thin, high-pitched chip notes; the species lacks a musical song.

Feeding

The curved bill is well suited to probing the deep, curved flowers of agave and other desert plants for nectar, and the species also catches small insects for protein.

Nesting

Females build a small cup nest, often on a low shrub such as ocotillo, in exposed desert habitat.

Frequently asked questions

What makes the Lucifer Hummingbird's bill unusual?

Unlike most North American hummingbirds, its bill is distinctly curved downward, an adaptation for probing the curved, tubular flowers of agave and similar desert plants.

Where can you see a Lucifer Hummingbird in the United States?

It occurs in very limited numbers in the Big Bend region of west Texas and in a few desert mountain ranges of southeastern Arizona.

What does a male Lucifer Hummingbird's throat look like?

It shows an iridescent purple gorget with feathers that extend outward into elongated points along the sides of the neck, unlike the more rounded gorgets of many other hummingbirds.

What do Lucifer Hummingbirds eat?

They rely heavily on nectar from agave and other desert flowers, supplemented with small insects for protein.