Green-backed Firecrown
Sephanoides sephaniodes
The only hummingbird in most of southernmost South America. Fairly common to common in woodlands, forests, gardens, matorral, and flowering hedges and bushes in farmland of lowlands and foothills. Rather stocky with a straight, sharply pointed bill, and a white spot behind the eye. Often looks simply dark and green overall; male’s “firecrown” rarely catches the light, but forehead often looks rather bushy or plush; female has a green crown.
Identification
The green-backed firecrown is 10 to 10.5 cm (3.9 to 4.1 in) long. Males weigh about 5.5 g (0.19 oz) and females about 5 g (0.18 oz). The species is sexually dimorphic, with larger, short-billed males, and smaller, longer-billed females. Adults of both sexes have bronzy green upperparts, slaty green wings and tails, and pale buff underparts with black and green spots. Adult males have the eponymous iridescent red-yellow crown. Juveniles of both sexes have rusty feather edges on the head and their underparts have a cinnamon tone. Because the young are sexually monochromatic, it is difficult to assign a sex to them.
Taxonomy
The green-backed firecrown is monotypic. It shares its genus only with the Juan Fernandez firecrown (S. fernandensis). The specific epithet sephaniodes is sometimes misspelled sephanoides to match the genus.
- Scientific name
- Sephanoides sephaniodes
- Authority
- (Lesson, RP & Garnot, 1827)
- Order
- Caprimulgiformes
- Family
- Trochilidae
- Genus
- Sephanoides
Range and habitat
The green-backed firecrown is found in Chile from south of the Atacama Region all the way to the southern tip of South America, in the adjoining areas of southern Argentina, and east across central Argentina to the Atlantic coast. (See Behavior:Movement below for details.) An isolated population is found on Robinson Crusoe and Alejandro Selkirk Islands of the Juan Fernández group, some 770 km (420 nmi) off the Chilean coast. It has been recorded as a vagrant on the Falkland Islands. The species inhabits forest edges, plantations of introduced Eucalyptus, clearings, thickets, and gardens. It is an important pollinator for the temperate rainforest regions of southern South America. In elevation it ranges from sea level to above 2,000 m (6,600 ft).
- Migration
- Complete migrants
Behavior
The green-backed firecrown is resident in the Chilean matorral from south of the Atacama Region to approximately the Los Lagos Region and in adjoining western Argentina. It nests from Los Lagos all the way to the southern tip of South America in both Chile and adjoining Argentina. In the non-breeding season it winters in the lowlands of central Argentina as far east as the Atlantic coast. The Juan Fernandez Islands population is believed to be sedentary.<p>The green-backed firecrown feeds on nectar from a variety of native and introduced flowering plants, favoring those of genera Abutilon, Embothrium and Fuchsia, and sometimes perches on flowers to feed rather than hovering. It is able to recall not only the nectar location among identical flowers but also to the location of the most rewarding nectar among less rewarding flowers. It is intensely territorial and has been noted to chase birds as large as caracaras.<p>The green-backed firecrown's nesting season on the mainland spans from September to November; data are sparse but the season on Juan Fernández appears to be September to December. The nest is a very small cup that is sometimes placed above water. The clutch is two white eggs. Nothing else is known about the species' breeding phenology.<p>The green-backed firecrown's typical song is "a series of high-pitched notes interspersed by gravelly trills and squeaky notes, 'pseee...pseee...krrr.skee.skee.skee....psee...'." Its call is "a single 'psee' or 'skee'."
Conservation
- Population trend
- declining
Photos
Distribution
Bird Calls
Other Birds
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A tiny barbet with strongly speckled and streaked upperparts, uniformly lemon-colored underparts, and a distinctive yellow-gold forehead patch. Pairs occupy dry savanna, broadleaved woodland, and montane forest, where they forage mostly for small fruit. It has a distinctive repetitive “pok-pok-pok” call that can last for minutes and is often the first sign that a bird is present. Red-fronted Tinkerbird is almost identical but has a bright red (not yellow-gold) forehead patch, and its similar call is faster-paced and higher-pitched.
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Fischer's Starling
Lamprotornis fischeri
An unusual gray-and-white starling of dry country. Note the gray hood, pale eye, whitish crown, and gray rump. The large white patches on the underwing are distinctive in flight. Found in dry savanna, in cultivated areas, and around human habitation, usually in flocks. Most similar to Wattled Starling, but has a gray rather than white rump, a pale eye, and a distinct gray hood. The most common call is a rising, slurred whistle, sometimes given in a long series.
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