Count Konstanty Tyzenhauz was a Polish–Lithuanian nobleman, naturalist, artist, and founder of ornithology in Poland and Lithuania. He made a large collection of eggs and bird skins at his estate in Pastavy.
- Occupation
- ornithologist
- Citizenship
- Russian Empire, Polish–Lithuanian Commonwealth
- Born
- June 3, 1786
- Died
- January 1, 1853
