 Among his other achievements, he is known for opening one of the first bird banding stations in Europe, at Cape Ventė in 1929.He also founded the Zoological Museum in 1918, the Kaunas botanical garden in 1923, Žuvintas reserve in 1937, and the Kaunas Zoo in 1938.Ivanauskas published 37 books and brochures, most famous of them - "Birds of Lithuania".