Numerical Data On African Birds' Behaviour At The Nest: Hirundo S. Smithii Leach, The Wire-Tailed Swallow.

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Date
1939
Authors
Moreau R.E
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Abstract
The observations on which this series of papers is based have been made almost entirely by Africans who are able to read and write Swahili. Equipped with note-book, pencil, and ordinary watch, they have made observations for continuous spells of five hours and upwards in the day, and noted the time at which every event occurred, especially the arrival and departure of parent birds. Compared with mechanical systems of recording, the use of African observers has the obvious disadvantage of human fallibility.
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East African Agricultural And Forestry Journal, 109, p. 109-125
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