Günther Niethammer was a German ornithologist who served during the Second World War with the Nazi Waffen-SS at various places including the Auschwitz concentration camp where he conducted studies on birds. Niethammer was the eighth son of Konrad Niethammer who was a paper manufacturer and politician. After studying zoology at Tübingen in 1927 he moved to Leipzig in 1929 and then worked on the anatomy of the avian crop under J. Meisenheimer. Through Hans Kummerlöwe, also in Leipzig, he met Erwin Stresemann who gave him the task of compiling the Handbuch der Deutschen Vogelkunde. The publication of the first volume led to a position as a curator at the Museum Koenig in Bonn from 1937 and he continued to work on the remaining two volumes, the last published in 1942. In 1937, Niethammer joined the Nazi party and in early 1940 he volunteered with the Luftwaffe as he had a flying license. Due to his age, he was rejected and he then tried to join the Wehrmacht which also refused to admit him. He then joined the armed unit, Waffen-SS, in May 1940. He was posted to Oranienburg and shortly after to Auschwitz concentration camp where he was posted at the main gate as a part of the security team. He made a request to the camp commander Rudolf Höss for alternate duty and towards March 1941 he was given "special ornithological duty" nearby and Niethammer published on the birdlife of the Auschwitz area. He also hunted ducks nearby which were shared with Höss and son Klaus. A prisoner named Grembocki helped in preparation of specimens. From the end of 1941 he was appointed as a zoologist with the Wehrmacht Department of Science at the recommendation of Fritz von Wettstein. He took part in the Ahnenerbe to support Nazi racial theory research. In 1942 he was transferred to unit K led by SturmbannführerErnst Schäfer. By 1 May 1944 he was promoted to Obersturmführer and from 22 April to 8 May 1945 he served in combat operations with the 269th Infantry Division. When the Allied Forces took over the region, he fled in civilian clothes on a bicycle belonging to Richard Heyder. In early February 1946 he reported to the British 320th Field Security Section in Bonn and was arrested. Niethammer was sentenced to eight years of imprisonment but it was reviewed and reduced to three years. He was placed in Mokotów Prison in Warsaw and released in November 1949. Niethammer became head of the ornithology department at the Museum Koenig in 1950 and became a professor in 1951 and retired in 1973 to Bonn. From 1962 to 1972 he served as editor for the Journal fur Ornithologie. He died of a heart failure while hunting on 14 January 1974. Niethammer's Nazi record was suppressed during his time in West Germany although known from his publications. Arno Surminski based his 2008 novel Die Vogelwelt von Auschwitz upon Niethammer's ornithological studies around Auschwitz. Niethammer was married to Ruth née Filtzer and one of their four sons, Jochen became a mammalogist of repute. Several subspecies of birds have been named after him including:
