Buff-tailed sicklebill
species of bird
Epimachus albertisi, a bird-of-paradise from New Guinea, is also sometimes called "buff-tailed sicklebill".
The buff-tailed sicklebill (Eutoxeres condamini) is a species of hermit hummingbird from the lower Andes and adjacent west Amazonian lowlands from southern Colombia and northern Ecuador to Peru and Bolivia.
Description
With a total length of 5–6 in (13–15 cm) and weighing 0.28–0.44 oz (7.9–12.5 g), it is a relatively large hummingbird. Males and females are virtually identical, differing only in size (especially wing measurements), with the females being some 20% smaller.
Its upperparts are iridescent dull greenish, while the underparts are whitish, densely streaked with dusky. The neck-side has a relatively faint blue patch. The tips of the rectrices (tail feathers) are white, and there is a naked stripe on top of the head (but this is usually concealed). The most conspicuous features, however, are those the common name refers to: the bill is strongly decurved, and the outer three rectrices on each side are deep buff, best visible from below.
Immature birds have light-tipped remiges (pinions), hardly any blue on the neck, and lack the naked crown stripe. Hatchlings have black skin and grey down.
Begin with the source’s own compact description: “Buff-tailed sicklebill” is species of bird. The dossier treats that line as a proposition to test through Buff-tailed, sicklebill and species, not as a finished interpretation.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Nov 5, 2025. The linked authority identifier is Q1261602. None of the 0 selected statements returned an explicit reference.
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This entry incorporates text from “Buff-tailed sicklebill” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.