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A FUNCTIONAL ANALYSIS OF COURTSHIP FEEDING IN THE RED-BILLED GULL, LARUS NOVAEHOLLANDIAE SCOPULINUS by C. R. TASKER1) and J. A. MILLS2) (Department of Zoology, University of Canterbury, Christchurch, New Zealand, and Wildlife Service, Department of Internal Affairs, Wellington, New Zealand) (With 6 Figures) (Acc. 10-III-1981) INTRODUCTION Courtship feeding is part of the behavioural repertoire of many bird species. It occurs early in the reproductive period and involves food beg- ging by the female and regurgitation or presentation of food by the male. The form and extent of courtship feeding vary between species. LACK (1940), MORLEY (1949), ANDREW (1961) and HINDE (1952, 1964) considered that the major function of this behaviour was to strengthen or maintain the pair-bond during the nesting period. However, studies by VON HAARTMAN (1958), CURIO (1959) ROYAMA (1966), BROWN (1967), KREBS (1970), and NISBET (1973) have shown that the quantity of food the female receives in courtship feeding can amount to a considerable proportion of her total daily intake, substantially more than would be re- quired to satisfy a solely symbolic behavioural function. ROYAMA (1966), after studying courtship feeding in the genus Parus, concluded that in most cases the feeding of the female by the male
Behaviour – Brill
Published: Jan 1, 1981
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