Konrad Zacharias Lorenz (Austrian German pronunciation: [ˈkɔnʁaːd tsaxaˈʁiːas ˈloːʁɛnts] ; 7 November 1903 – 27 February 1989) was an Austrian zoologist, ethologist, and ornithologist. He shared the 1973 Nobel Prize in Physiology or Medicine with Nikolaas Tinbergen and Karl von Frisch. He is often regarded as one of the founders of modern ethology, the study of animal behavior. He developed an approach that began with an earlier generation, including his teacher Oskar Heinroth. Lorenz studied instinctive behavior in animals, especially in greylag geese and jackdaws.
https://en.wikipedia.org/wiki/Konrad_Lorenz