Appreciate the kind comments on the nuthatch photo.
scc, all the data can be seen in the Flickr link.
These shots were set up with a pre focus just off to the side of an active feeder. I had my daughter hold a broom in the air about where I figured they'd be coming in and I focused on that plane. It was then just a matter of waiting for the correct afternoon light (I did use fill flash on some) and hitting the shutter as the speedy little devils entered the zone. I had more misses than hits.
Here's a mountain chickadee, also K1 and DA 560.