The bird table�s roof is slightly wider than the base which gives protection to the birds from the rain and the corners have been cut off to allow easy cleaning of old food.. How to build a bird table. in this article: simple wooden bird table no base bird table teacup bird table old glass dishes bird table community q&a references. bird tables are a wonderful way to feed the birds and add a decorative item to your garden at the same time.. Riverside woodcraft open bird table... 13.