Thanks for the case info. I’ll give your settings a try. I was on Case 2 this morning: TS fully left and AC/DC + 1. I found that focus jumped very quickly to a second bird in the frame.
On the bright side, I have two families of wrens in the garden.

I have also set ‘Switching Tracked Subjects’, in AF menu #4, to 0.
Two families of wrens in the garden? Oh, that’s nice. Their song is so lovely and with two families you’ll be hearing it in stereo! 






