Australian bees visit

It's been a while since a photo appeared here, so let's put one up.

The kids noticed these bees in the garden in December. They have unusual behaviour, clinging to a particular stick on a bush overnight, and disappearing again during the day:



It appears that they are Australian blue banded bees. They are solitary (in that they don't build hives), but like to sleep together in small groups. Apparently they are common around Brisbane, but I've not noticed them before. Nice.