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David Lack

British ornithologist and biologist (1910-1973)

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 20, 2026
Entity authorityQ732872
Source-derived summary

David Lambert Lack FRS (16 July 1910 – 12 March 1973) was a British evolutionary biologist who made contributions to ornithology, ecology, and ethology. His 1947 book, Darwin's Finches, on the finches of the Galapagos Islands was a landmark work as were his other popular science books on Life of the Robin and Swifts in a Tower. He developed what is now known as Lack's Principle which explained the evolution of avian clutch sizes in terms of individual selection as opposed to the competing contemporary idea that they had evolved for the benefit of species (also known as group selection). His pioneering life-history studies of the living bird helped in changing the nature of ornithology from what was then a collection-oriented field. He was a longtime director of the Edward Grey Institute of Field Ornithology at the University of Oxford.

Education and early life

Lack was born in London, the oldest of four children of Harry Lambert Lack MD FRCS, who later became President of the British Medical Association. The name 'Lack' is derived from 'Lock.' His father grew up in a farming family from Norfolk and became a leading ear, nose, and throat surgeon at the London Hospital. Although his father had some interest in birds as a boy, it does not appear that he influenced David's interest. His mother Kathleen was the daughter of Lt. Col.

Editorial summary

This brief starts where responsible research should: with the source description of “David Lack” as british ornithologist and biologist (1910-1973). Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1910, 1973, 1947—that can be checked directly. The linked authority record independently contributes the date 1910-07-16. The account is most persuasive where David, Lack and British can be independently traced.
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The subject matters to the general reference register because the source frames it as british ornithologist and biologist (1910-1973). Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q732872. VIAF identifies the subject as 108526189. The Library of Congress control number is n50039064. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1910, 1973 and 1947.

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This entry incorporates text from David Lack” 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.