Bird Bath

I have a winter cover over our pool. I place water on the cover to hold it place when the wind blows, the cover is porous so water from the pool seeps through also. This makes an ideal drinking water hole for the cats plus the birds now use it to bathe in and get a drink. I tried to get a photo of one of the birds bathing but by the time I got the camera two birds were at the edge of the pool water. I will wait a bit and maybe I can catch more birds using the pool.