And unrelated birds that had been reared together for a short time scorned their broodmates and preferred to lek near relatives who were perfect strangers instead.

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Whether it is a pedigreed oil painting of the family (in the best of cases, a Sargent) or a plucky image of oneself (perhaps a Warhol, but probably not a Freud), people love to keep representations of their relatives near at hand.

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Staying near children, other relatives and old friends easily might outweigh everything else.

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Donna Wright, from Spennymoor, County Durham, admitted harassing relatives of Katrice Lee, who went missing from a shop near an army base in Germany in 1981.

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Concerned relatives have joined the search for some 30 fishermen from the Bashkhali area - near Chittagong and some 300km (190 miles) south-east of the capital Dhaka - who set sail last week.

BBC: Pirates 'kill fishermen' off Bangladesh

Earlier on the same day a group of about 200 Uighur protesters, mainly women, gathered near the scene of some of the worst violence on Sunday, demanding the release of male relatives whom they said had been detained indiscriminately by police.

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