UPDATE: here are some videos of this very late ruby throat. The first one shows him/her feeding at Salvia "Waverley" - a small white flower. It starts out badly out of focus but I focus better at the end (I'm a little out of practice!).
The second video is better - he's feeding at Rosebud sage, Salvia involucrata.
In the third video he's feeding at pineapple sage (between the 2 feeders, which I just put up). Pineapple sage is a very late bloomer, so they are well matched.
In the last video, he's approaching pineapple sage, and I have him closer up.