And the moon sinks low in Scorpio

This is something I've been meaning to experiment with for ages, but never got round to. I've just been reminded of it, because someone posted on a thread elsewhere with the assumption that "birthdays are randomly distributed" - which I've always assumed they're not. For a start, there's always a bit of a clump of birthdays round February/March, which I've always blamed on people having early summer holidays in June.

Now, I'm assuming that unlike, say, musical taste, incidence of birthdays among my friends list will at least be representative of the population as a whole. If not, then we're into the suggestion that being born in a particular month predisposes you to particular behaviours and that smacks of astrology, so I don't like it.

(Yes, I know there are other non-astrological factors which might be relevant, but let's give it a whirl, shall we?)

( When's your birthday? )