Dragonflies

I was gone in the morning.  At lunch, a male widow skimmer used one of the bamboo stake perches.  Then I had an afternoon meeting so my swim was late.  More beetles, including a weevil, but not much else.  After I got out, I saw one or more dragonflies hunting over the pool. It (or they) zipped erratically at about dogwood height, apparently seeing lots of prey, but I never saw a dragonfly land.  I just had an impression of a pale tan body with no markings.  The sky had clouded over so the light level wasn't very high.  

I went outside hoping to get a picture of the dragonfly, but no luck.  Instead, a hummingbird visited the milkweed, then came and gave me a thorough examination, and moved on to the feeder.  I didn't see what happened next as I was not moving in the hope of not spooking it.  At supper time, a male goldfinch visited.