Extract of a letter, regarding swallows in winter from Armand Dubourdieu
Reference number: CLP/15i/54
Date: 21 September 1697
Description
Dubourdieu describes the way in which swallows (Hirundinidae) 'drown' during the winter, remaining in the water until spring. He describes how the birds rest together in the water, one on top of another.
Subject: Zoology / Ornithology / Natural history
Written by Dubourdieu in Stockholm
Read to the Royal Society on 27 October 1697
- Reference number
- CLP/15i/54
- Earliest possible date
- 21 September 1697
- Physical description
- Ink on paper
- Page extent
- 1 page
- Format
- Manuscript
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Citation
Extract of a letter, regarding swallows in winter from Armand Dubourdieu, 21 September 1697, CLP/15i/54, The Royal Society Archives, London, https://makingscience.royalsociety.org/items/clp_15i_54/extract-of-a-letter-regarding-swallows-in-winter-from-armand-dubourdieu, accessed on 10 July 2026
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https://makingscience.royalsociety.org/items/clp_15i_54/extract-of-a-letter-regarding-swallows-in-winter-from-armand-dubourdieu
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Classified Papers
The 'Classified Papers' of the Royal Society are papers from British and international natural philosophers and scholars categorised according to subject areas.
Dates: 1592 - 1741
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