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Broad-billed roller

species of bird

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 6, 2026
Entity authorityQ204154 ↗
Source-derived summary

The broad-billed roller (Eurystomus glaucurus) is a member of the roller family of birds which breeds across tropical Africa and Madagascar in all but the driest regions. It is a wet season breeder, which migrates from the northern and southern areas of its range towards the moister equatorial belt in the dry season.

Taxonomy

The broad-billed roller was formally described in 1776 by the German zoologist Philipp Ludwig Statius Müller under the binomial name Coracias glaucurus. The specific epithet is from Ancient Greek glaukos meaning "blue-grey". Statius Müller based his brief description on "Le Rollier de Madagascar" that had been described in 1775 by the French polymath Georges-Louis Leclerc, Comte de Buffon and illustrated by Edme-Louis Daubenton. The type locality is Madagascar. The broad-billed roller is now placed in the genus Eurystomus that was introduced in 1816 by the French ornithologist Louis Pierre Vieillot. A molecular phylogenetic study published in 2018 found that the broad-billed roller was most closely related to the blue-throated roller (Eurystomus gularis). Alternate names for the broad-billed roller include the African broad-billed roller and the cinnamon roller.

Four subspecies are recognized:

E. g.

Editorial summary

This brief starts where responsible research should: with the source description of “Broad-billed roller” as species of bird. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA sound reference starting point where classification, measurement and the date of the underlying evidence remain visible. The current lead gives the account dated anchors—1776, 1775, 1816, 2018—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Broad-billed, roller and species can be independently traced.
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Why this record matters

The subject matters to the science & nature register because the source frames it as species of bird. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Jul 6, 2026. The linked authority identifier is Q204154. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1776, 1775, 1816 and 2018.

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Source & attribution

This entry incorporates text from “Broad-billed roller” 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.