Spikes on trees in Oxford to 'stop bird poo' - BBC News

A wildlife campaigner says he believes the spikes are to stop birds from messing on cars.

Bird sculptures installed in Somerset nature reserve - BBC News

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Some Rich People Put Anti-Bird Spikes On Trees To Protect Fancy

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Spikes on trees in Oxford to 'stop bird poo

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Fury over anti-bird spikes installed on trees 'to protect cars

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Pitcher plant problems? Maybe it wants some poop. yes, I said

Anti-bird spikes fitted to Clifton trees to 'protect' expensive

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