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- W2007096927 abstract "The diet of Tawny Owls during the breeding seasons 1949-52 in Wytham Woods, near Oxford, was determined (a) from analysis of pellets collected, (b) from observation at night, by the use of a red floodlight, of prey brought to the nest and (c) from records of prey left in the nest made during daily visits to weigh the young. Analysis of pellets showed an increase in the proportion of moles and beetles (mainly cockchafen) in the diet after the first week of May (the time when, on average, the young owls are about half grown) and a decrease in the proportion of mice and voles. These changes were confirmed in a more emphatic way from observations of food being brought to the nest and from records of prey left in the nest. This greater emphasis suggests that tho food brought to the young may differ from that which the adults eat themselves. The fact that no moles were observed being brought to nests at night, wherean many were recorded as surplus prey in the nest, showed that diurnal hunting is regular during the breeding reaaon. A true assessment of prey taken by Tawny Owls during the breeding season should be based both on analyeis of pellets cast by the adults and on records of food brought to the nest throughout 24 hours. Such records could best be obtained with an automatic camera and flash and a design of nest-box which is described." @default.
- W2007096927 created "2016-06-24" @default.
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- W2007096927 date "2008-04-03" @default.
- W2007096927 modified "2023-09-23" @default.
- W2007096927 title "PREY TAKEN BY TAWNY OWLS DURING THE BREEDING SEASON" @default.
- W2007096927 cites W2055793335 @default.
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- W2007096927 doi "https://doi.org/10.1111/j.1474-919x.1969.tb02545.x" @default.
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