Marsh Harriers Circus aeruginosus target Teals Anas crecca at roosts according to potential availability of vulnerable prey: Capsule The mean daily rate of foraging flyovers by Marsh Harriers in a given site is better predicted by the number of vulnerable Teal they can force to take flight (equivalent to patch size) than by the total number of Teal present.

Author： Guillemain Matthieu   Lepley Michel   Fritz Herve   Hecker Nathalie  

Publisher： Taylor & Francis Ltd

ISSN： 0006-3657

Source： Bird Study, Vol.54, Iss.2, 2007-07, pp. : 268-270

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