By default I’ll identify them as a Blue-gray Gnatcatcher. It’s a little tricky here based on their lack of color.
One of the following photographs clearly shows black tail feathers. Which could be a Black-tailed Gnatcatcher. That also means they are lost and far from home.
To me it’s not really all that important, interesting birds for a photograph.
Real ‘bird watchers’ can talk these points to death, or until my eyes glaze over.
The above is the other side…the ‘people’ watcher.