Snow "Cone" Instead of Water for the Birds

Greetings from the Arctic Tundra!  Uhhh, I mean frozen western Massachusetts.

It's  been pretty ch-ch-ch-chilly around here lately.

I feel the sorriest for the birdies who have opted to stay up north instead of fly south for the winter.

Honestly, I'd do anything to have a warmer in the birdbath.

We keep seeds in the feeders for the birds but the bird bath?  

All they'd get these days is a big snow cone to nibble on instead of water! Sad but true.

DO YOU KNOW HOW TO HEAT A BIRD BATH?