A summary of 1821 in birding and ornithology.

Years in birding and ornithology: 1818 1819 1820 1821 1822 1823 1824
Centuries: 18th century · 19th century · 20th century
Decades: 1790s 1800s 1810s 1820s 1830s 1840s 1850s
Years: 1818 1819 1820 1821 1822 1823 1824

Events

Deaths

References

  1. Nilsson, Sven (1817–1821). Ornithologia Svecica. Havniae, Apud J.H. Schubothium. Archived from the original on 2023-10-04. Retrieved 4 October 2023.
  2. "Historie". Senckenberg Society for Nature Research. 1 March 2021. Archived from the original on 30 December 2022. Retrieved 30 December 2022.


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