Choco tyrannulet
species of bird
The Choco tyrannulet (Zimmerius albigularis) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Colombia and Ecuador.
Taxonomy and systematics
The Choco tyrannulet was originally described as Tyrannulus chrysops albibularis, a subspecies of the golden-faced tyrannulet. Through much of the twentieth century the golden-faced tyrannulet and several other tyrannulets were kept in genus Tyranniscus but a study published in 1977 erected the present genus Zimmerius for them. Following a study published in 2008 that detailed molecular and vocal differences among the golden-faced tyrannulet's subspecies, the Choco tyrannulet was recognized as a full species.
The Choco tyrannulet is monotypic.
Description
The Choco tyrannulet is 10.5 to 11.5 cm (4.1 to 4.5 in) long and weighs 6.6 to 8.6 g (0.23 to 0.30 oz). The sexes have the same plumage. Adults have a mottled yellow forehead, dusky lores, a yellow supercilium, a dark stripe through the eye, and golden-brown ear coverts. Their crown, back, and rump are dark olive.
“Choco tyrannulet” enters the record as species of bird. Crown Archives preserves that source wording while asking what Choco, tyrannulet and species can confirm, complicate or overturn.
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“Choco tyrannulet” is worth following because a concise public description often conceals a longer documentary argument. Here, Choco, tyrannulet and species provides the most credible route into that argument.
The date and method of observation matter as much as the stated conclusion, especially where classification or consensus has changed. The source revision retrieved here is dated Sep 30, 2025. The linked authority identifier is Q1277295. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1977 and 2008.
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This entry incorporates text from “Choco tyrannulet” 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.