Thanks, everyone, for the kind comments.
What speed did you have to set your camera on to get those shots? I placed two humming bird feeders off my deck. I enjoy watching those little rockets fly around. There their and gone in a blur.
h2ofowler, I had my 50D set to ISO 800 for all 4 images.
The settings were as follows:
"wings stopped" 1/4000 @ f5
the coneflower image: 1/3200 @ f5.0
eye closed: 1/3200 @ f4.5
the last image, taken after the sun had set, was at a relatively slow 1/800 @ f4.0
I'd love to shoot even faster, but then I'd have to compromise on ISO and aperture more than I want to.
I've shot hummers several times in the past, but this was the first time when they were in direct sunlight, and it was a real treat to shoot them with sufficient light.