In the last hour left to accomplish any of those goals, the butterfly finally started perching and I got photos. Like I thought, it was a Henry's Elfin, and it gets to go on my Feb list, thanks to leap year.
Another butterfly species I was able to photograph was AZ Powdered-Skipper. There were two of them.
My theory on the hummer is that it arrived sometime during the day and when I heard it around 5 PM it was not just arriving. I think it just moved from one perch to another in the bushes adjacent to the oasis. Perhaps, it arrived tired and was resting and had been forced to move by a bird of some kind. Then around 6 PM (I was determined to wait it out since I couldn't flush it) it headed to the cam feeder where I snapped these photos. So before I left the oasis for the house I turned on the cam. That way if it doesn't have anything on it tomorrow, I'll know the hummer isn't big enough to trip the shutter. If the hummer is on it, then I'll know I got it when it first arrived.
The weights helped some but the cam still caught enough wind to take about 25 photos. I'll take off the weights tomorrow when I take down the cam.
While watching the redbud tree it looked lovely to see so many green trees looming above it.
And back to the west for the last three times I've been at the oasis I've heard a Crissal Thrasher calling. Today I was finally able to locate it. Another was answering so I think that's their nesting territory. This photo was taken from a distance farther than my lens can take decent shots, but it's better than nothing.
Finally, there was this cute little insect on the blooming agarita bush. Don't know what it is.
And the thrush photo was barely good enough that I could say for sure it was a Hermit Thrush.