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Yellow-billed tit-tyrant

species of bird

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionOct 5, 2025
Entity authorityQ1264828 ↗
Source-derived summary

The yellow-billed tit-tyrant (Anairetes flavirostris) is a species of bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Chile, Peru, and as a vagrant in Uruguay.

Taxonomy and systematics

The members of genus Anairetes are known commonly as tit-tyrants because their active foraging behavior and crests are reminiscent of the true tits in the family Paridae. The genus had formerly been named Spizitornis.

The yellow-billed tit-tyrant has these four subspecies:

A. f. huancabambae (Chapman, 1924)

A. f. arequipae (Chapman, 1926)

A. f. cuzcoensis (Chapman, 1924)

A. f. flavirostris Sclater, PL & Salvin, 1876

Description

The yellow-billed tit-tyrant is 10 to 12 cm (3.9 to 4.7 in) long and weighs 6 to 7 g (0.21 to 0.25 oz). The sexes have the same plumage.

Editorial summary

Begin with the source’s own compact description: “Yellow-billed tit-tyrant” is species of bird. The dossier treats that line as a proposition to test through Yellow-billed, tit-tyrant and species, not as a finished interpretation.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current lead gives the account dated anchors—1924, 1926, 1876—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Yellow-billed, tit-tyrant and species is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of bird” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Oct 5, 2025. The linked authority identifier is Q1264828. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1924, 1926 and 1876.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

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Source & attribution

This entry incorporates text from “Yellow-billed tit-tyrant” 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.