1802 in birding and ornithology
- Johann Matthäus Bechstein Ornithologisches Taschenbuch 1802–1803.
- Matthew Flinders discovered the soon to be extinct Kangaroo Island emu
- George Montagu publishes Ornithogical Dictionary; or Alphabetical Synopsis of British Birds
- Louis Dufresne popularized the use of arsenical soap for preserving birds in an article in Nouveau dictionnaire d'histoire naturelle a technique which had enabled the Muséum to build the greatest collection of birds in the world.
- scarlet honeyeateramongst many other birds.
- The Jean Baptiste Audebertin Oiseaux dorés, ou à reflets métalliques