A Study of the Colies of Southern Africa

The medicinal and poisonous plants of southern and eastern Africa.

1962 • 3,171 citations

Population Studies of Birds

1967 • 1,799 citations

Learning and Instinct in Animals

1964 • 1,624 citations

The birds of South America

1989 • 861 citations

Energy Metabolism, Thermoregulation and Body Temperature

1961 • 452 citations

Birds of the world

1929 • 188 citations

The Birds of Kenya Colony and the Uganda Protectorate

1938 • 101 citations

The Birds of British Somaliland and the Gulf of Aden

1938 • 94 citations

Birds of South Africa

1966 • 41 citations

The Birds of South Africa

2011 • 34 citations

The birds of South Africa,

1900 • 18 citations

A Check List of The Birds of Southern Rhodesia with Data on Ecology and Breeding Reay H. N. Smithers Michael P. Stuart Irwin Mary L. Paterson

1957 • 15 citations

Zulu Journal

1959 • 13 citations