"Head" = falsetto?

That depends. I may be treading on dangerous waters (without checking, I'm just guessing there are a couple of hundred ancient threads on this subject), but in my formal voice classes they insisted that if you happen to be of the *female* persuasion, as am I, the head voice is "normal" and the chest voice is something you do as a vocal "trick."

Of course, this didn't stop me from singing tenor instead of the range they wanted to put me in, but then I'm that sort of bear. And besides, who ever heard of a bear singing mezzo?!