There is no such thing as a BFR and has not been for many years. It is simply called a flight review. Doing it once a year is a good practice, at the very least the flying portion.
All our club members are required to do a spring check before solo flying which is a pretty good practice, we think.

UH

Uncle Hank is correct. It is simply "Flight Review" per FAR 61.56. One reason is that it encourages a pilot not to wait 24 months to have a review of their skill and their knowledge of FAR Part 91. (FAR Part 61 describes how you earn a FAA pilot certificate. Part 91 is how they take it away if you don't know the Part 91 rules!)

I'm amused and a little dismayed when I see that a CFI wrote "Biannual Flight Review" in someone's logbook. Then I must inform the owner of that logbook that their "Biannual" expired 6 months after that misspelled endorsement. Well, maybe not -- I know what was meant but according to the FAA (and the plaintiff's lawyers after the accident) it is not correct, although it was endorsed in good faith and I'll probably accept it.

Perhaps the change from "Biennial" was also because many CFI's couldn't spell it (myself included!)

Curious what is in your logbook? Take look sometime but I wouldn't worry about it.

Enough nit-pickin'. I'm actually not this serious when you fly with me at Marfa!
But being a Designated Pilot Examiner for the FAA causes me to accidentally know this trivia.

Let's go fly!