Here is another one of those lucky shots of birds in action in the back yard.
The female house finch, on the right, was drinking water from the birdbath.
Then a male house finch, on the left, landed on the bath platform and stood very erect, watching the other finch.
It's not a great image, quality-wise, but I love the moment caught here.
The male finch seems to be checking to see just how much water the female finch is going to drink, and whether there will be enough left for him.