Best bird bath material
Looking for guidance on selecting the best material /type of bird bath to install in the backyard. Looking for a 4 season setup that can withstand Western Canada's winter (Calgary). All of the ones I've seen so far are some sort of concrete and fiber mix that explicitly states cannot be exposed to cold.
I would like to be able to add a heater to the winter months and a fountain during the summer so a bit of depth may be needed.
Any help is appreciated.
Oh, and we cater to all sorts of bird sizes from very large crows to chickadees.