Yes i did and its jolly exciting. For a brief and basic insight check out wikipedia.
Anyway, research so far:-
I didn't know that some butterfies hibernate. And to do so they conceal themselves in crevices or piles of dry leaves. so piles of slate or old tiles placed upright is ideal. Smooth sides though to protect their wings.
I was also unaware that there were solitary bees. Lots of them in fact and all the females are fertile. So if you drill holes in a log or tree trunk they will fill them up with rows of individual eggs. The cavities are first filled with pollen which can take the bee 20 visits per egg. these are aften placed near fruit trees or anything that relies heavily on pollination.
The holes (2,4,6 &8mm thick) need to be drilled quite deep and at an angle so rain cant get in. Also the opening needs to be smooth so the bees dont get hurt. the logs should also be south facing and sheltered.
Lady birds like a wooden box on its side filled with twigs. whole colonies will live there and enjoy eating the nasties in your garden.
the earwigs can be trapped in a terracotta pot hung upside-down filled with straw.
Thats it so far. I can see how you can build some great hotels. Not sure if ill make a big one, or just have individual suites dotted about the garden where i think theyll be best suited.
I have some well weathered logs in the garden, so i reckon thats a good place to start. Il post pics as i go...
...Bug on a mission : )
Edited by bughut - 5/25/13 at 2:51pm