Well if you think you may have a record Wardy, then I've just beat it!
During a recent mild and sunny spell, I've seen some bumble bee's visiting some winter flowering shrubs in my garden topping up on some nectar.
At a guess I'd say they was temporarily awoken from their torpid state and took the opportunity to raise their energy levels on what was available, this lead me to realise that, yes there is indeed a reason and a purpose for winter flowering plants, other than just looking pretty for us humans.