A lake, sometimes.

Five days ago this was a lovely green field, with a herd of white heifers. Today the same herd is here, but they now have a lake in the centre of the field, and lots of ducks and geese for company.
There have been a couple of thunderstorms through the night, but I didn't think we had enough rain for this lake to form again.
I noticed the little calf, to the right of the picture, happily resting. I wonder if dad is looking after it?