Bird Identification: CLOSED: Wetlands Bird, 4 by wingwoman

wingwoman wrote:
I just visited our local wetlands park for the first time in over a year. Light Rail will be rumbling through the edge of the creek, and the construction has caused much disruption with the birdies. The first thing I saw was these swift birds swooping down to the water, skimming the surface and taking off again. So fast, I was unable to get a shot that was even reasonably in focus, but he colors certainly came through. I'm hoping that somebody familiar with this bird will recognize it, despite the blur.