White Dapperling Fungi

I had planned to spend the day repotting many of my indoor plants, but I need to take them all outside; today is not the day to do that! 
 
Today’s picture is of one of the many fungi that have sprung up overnight; the extra is a different species; there seem to be hundreds of them in the grass.
  
The temperature at noon today was fifteen degrees Celsius. We have had torrential rain overnight and all day today. I expect we shall have a very large pond tomorrow, just when it had started to go down. However, our large wildfowl population seem to be enjoying the weather.