Abstract
THAT change of temperature has little to do with bird migration is well illustrated by the fact that flocks, apparently of ducks, are seen as early as the middle of August, moving south past the Biological Station of the University of Egypt at Ghardaqa just south of the entrance to the Gulf of Suez. Not only are they beginning their migration when it is warmest in the north, but also, a few days after passing here, they enter the hot part of the Red Sea, where, in August, conditions are truly dreadful from the human point of view.
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CROSSLAND, C. Bird Migration and the Red Sea. Nature 134, 574 (1934). https://doi.org/10.1038/134574b0
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DOI: https://doi.org/10.1038/134574b0
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