That's a gorgeous picture of that robin, Peggy.
I see now on bigger sites (like Cornell's) that red house finch is super common. When I started trying to id I looked on sites with birds found in my area and the pics were harder to match up.
I wish I had a place for a window bird feeder, that's a good idea for picture taking.
Kurt thanks for the info on the camera lens. That's a nice lens.