Thanks, klm, exkalibur, and Marko!
klm--that's what I'm starting to play with--the 'S' setting. With limited success so far.
But I'm larnin'!
exkalibur, I'm using the 70 - 300 mm VR zoom most of the time when I'm shooting birds. So I've got the problem of low light exacerbated by the longer lens cutting out even more
Marko, thanks for the tutorial!! Very interesting! I'm going to print this out and play with it
With luck I'll get it figured out before the large flock disperses...