Dr Alwin Karl Haagner was a South Africa

South Africa

The Republic of South Africa is a country in southern Africa. Located at the southern tip of Africa, it is divided into nine provinces, with of coastline on the Atlantic and Indian oceans...

n ornithologist.

Haagner worked in the Transvaal Museum

Transvaal Museum

""The Ditsong National Museum of Natural History, formerly Transvaal Museum, is a natural history museum situated in Pretoria, South Africa....

 from 1906, where he started the museum's great ornithological collection. Haagner left the museum in 1911, was succeeded by Austin Roberts

Austin Roberts

Austin Roberts was a South African zoologist. He is best known for his Birds of South Africa, first published in 1940. He also studied the mammalian fauna of the region: his work The mammals of South Africa was published posthumously in 1951...

, and became director of the Pretoria Zoological Gardens

National Zoological Gardens of South Africa

The National Zoological Gardens of South Africa is the national zoo of South Africa. It is situated in the city of Pretoria and was founded by J. W. B...

.

He took an interest in the Kruger National Park

Kruger National Park

Kruger National Park is one of the largest game reserves in Africa. It covers and extends from north to south and from east to west.To the west and south of the Kruger National Park are the two South African provinces of Limpopo and Mpumalanga. In the north is Zimbabwe, and to the east is...

 and played an important role in drafting the National Parks Acts of 1926. He was the author of Sketches of South African Bird-Life.

Haagner compiled A Checklist of the Birds of South Africa with J. W. B. Gunning

J. W. B. Gunning

Jan Willem Boudewijn Gunning , was director of the Transvaal Museum and a medical practitioner....

, first director of the Transvaal Museum

Transvaal Museum

""The Ditsong National Museum of Natural History, formerly Transvaal Museum, is a natural history museum situated in Pretoria, South Africa....

in 1910.