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The data collected during 26 days of cattle watching have been examined. Differences in the distribution of the habits, and of the length of time spent on each habit, larger than those recorded by other workers, are given. Possible explanations for these differences are discussed; part of the variations may have been caused by individual behaviour, and part by changes in climatic conditions. It is concluded that the major cause of variation is the difference between the herbage quantity and quality on the different pastures.
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Harker et al. (1961) studied this question.
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