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Unequal sex-ratio, mortality causes and pollutant residues in Long-eared Owls in Britain

01 October 1996 Comments Main paper Recent reports have indicated an uneven sex-ratio among wintering Long-eared Owls Asio otus, in favour of males in Norway and females in Britain. Harvey & Riddiford (1990) found a ratio of 28F : 8M among trapped autumn migrants on Fair Is...

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01 October 1996 Comments Notes On 21st June 1992, along the Basingstoke Canal, Hampshire, I came across a family of Little Grebes Tachybaptus ruficollis. While watching the adults feeding their four young, I noticed a Pike Esox lucius about 30 cm long approach through the clear wate...

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01 May 1943 Comments Notes 1942 I had excellent opportunities of observing the birds which frequent the southern shores of Ayr Bay, between the mouth of the river Doon and the Heads of Ayr. As a result I have been able to add three new birds to the Ayrshire list, and I include one...

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Unequal sex-ratio, mortality causes and pollutant residues in Long-eared Owls in Britain

Notes

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