Johannes Thienemann (1863-1938) was a German scientist, founder and permanent director of the world's first Ornithological Station in Prussian Rossitten, now Rybachy. Thienemann first came to the Curonian Spit as a tourist and his attention was drawn to the migration of birds... Thienemann's memoirs "Thirty Years on the Curonian Spit" include not only the sum of his knowledge about birds, but also vivid descriptions of life on the spit, the book is imbued with love for this place, birds and nature in general, written with the deepest attention to life around.