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Bird Ecology and ConservationA Handbook of Techniques$
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William J. Sutherland, Ian Newton, and Rhys Green

Print publication date: 2004

Print ISBN-13: 9780198520863

Published to Oxford Scholarship Online: September 2007

DOI: 10.1093/acprof:oso/9780198520863.001.0001

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Diet and foraging behavior

Diet and foraging behavior

(p.233) 10 Diet and foraging behavior
Bird Ecology and Conservation

William J. Sutherland

Oxford University Press

The availability of food has wide-ranging effects on the population size and demography of wild birds. This chapter describes methods used to discover what birds eat, to measure the rate at which they can ingest food, and the factors that affect these. Methods used to determine the composition of the diet are presented and compared. The measurement of the size and quality of prey items is described. Techniques used to measure food intake rates, prey handling time, time budgets, depletion of food supplies, and interference among foraging birds are considered.

Keywords:   diet, foraging behaviour, food intake rate, food depletion, prey size, prey quality, handling time

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