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Masatierra petrel

species of bird

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionFeb 8, 2026
Entity authorityQ903357 ↗
Source-derived summary

Masatierra petrel (Pterodroma defilippiana) or De Filippi's petrel, is a species of seabird in the family Procellariidae. It is endemic to Chile where it nests in the Juan Fernández Islands (including Masatierra) and Desventuradas Islands. Its natural habitats are open seas and rocky shores.

Etymology

The petrel was first described by Enrico Hillyer Giglioli in 1869 and named in honour of the Italian zoologist Professor Filippo de Filippi. Both these naturalists took part in an Italian government-sponsored scientific voyage to circumnavigate the world in 1866. The vessel returned successfully to Naples in 1868 but de Filippi died in Hong Kong from dysentery during the previous year. Giglioli took over the scientific work of the expedition after the professor's death.

Description

Masatierra petrel grows to a length of about 26 centimetres (10 in). Its cap and mask are dark grey while its forehead is white. It has dark grey plumage on its upperparts with a distinctive "M" mark, a paler grey partial collar and a white throat, belly and under wing-coverts.

Editorial summary

This brief starts where responsible research should: with the source description of “Masatierra petrel” 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—1869, 1866, 1868—that can be checked directly. The selected authority fields contribute no independent date. The account is most persuasive where Masatierra, petrel and species can be independently traced.
Editorial analysis

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 Feb 8, 2026. The linked authority identifier is Q903357. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1869, 1866 and 1868.

Critical limits

Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

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  • Classification context
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  2. Expand the search: follow Masatierra petrel primary sources, Masatierra petrel archive and Masatierra research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

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Source & attribution

This entry incorporates text from “Masatierra petrel” 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.