Stag Beetles start life underground as a larvae, and munch their way through rotting logs for seven years or so before emerging as an adult beetle. So when you make a loggery, the first step is to dig a hole...
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Then tip your logs in and fill in the gaps with soil...
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Then stand back and feel smug and accomplished for a while...
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Then go get a cup of tea.
Thanks again to Skanska and the London 2012 Biodiversity Team for the logs. And an extra-special thanks to Helen, Stuart, Gareth, Suzanna and Russell for the mammoth digging effort!