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Keywords: hanging
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Journal Articles
J Exp Biol (1991) 155 (1): 519–530.
Published: 1 January 1991
...John Videler; Alex Groenewold ABSTRACT Hunting kestrels were observed to hang, almost without wing-flapping, in fixed positions over a sea dike. The height and position with respect to the dike profile, the wind direction and velocity and the percentage of hunting time without wing beating were...