SUMMARY (1) The seasonal pattern of occurrence of the Palaearctic-breeding landbird migrants in Tsavo East National Park in south-eastern Kenya is described. (2) The majority of the migrants did not arrive in the autumn until the onset of the rains, usually about mid-November. By this time they had been in Africa south of the Sahara for 2 or 3 months. SUMMARY (1) The seasonal pattern of occurrence of the Palaearctic-breeding landbird migrants in Tsavo East National Park in south-eastern Kenya is described. (2) The majority of the migrants did not arrive in the autumn until the onset of the rains, usually about mid-November. By this time they had been in Africa south of the Sahara for 2 or 3 months. SUMMARY (1) The seasonal pattern of occurrence of the Palaearctic-breeding landbird migrants in Tsavo East National Park in south-eastern Kenya is described. (2) The majority of the migrants did not arrive in the autumn until the onset of the rains, usually about mid-November. By this time they had been in Africa south of the Sahara for 2 or 3 months. SUMMARY (1) The seasonal pattern of occurrence of the Palaearctic-breeding landbird migrants in Tsavo East National Park in south-eastern Kenya is described. (2) The majority of the migrants did not arrive in the autumn until the onset of the rains, usually about mid-November. By this time they had been in Africa south of the Sahara for 2 or 3 months.
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Peter Lack (1983) studied this question.
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