I use fill flash quite a bit on insects and birds (see my galleries in the link below). My comment was a bit of joke. There are too many variables to get right when seconds count with birds and insects. So any help with auto-focus is appreciated. Fill and auto iso don't work.
As for Winterliude, not much a of winter guy though I walked to whole canal to see what was what. My fear is this winter will never end, they are predicting snow for Friday!
All the best and hoping to get out to Saskatchewan one of these days.