Spring has sprung with a backyard mini makeover

Ran and I spent Friday updating our little backyard. It was so nice to enjoy a beautiful Easter sunday outside in the pretty landscape. In addition to some intensive weeding and pruning, we filled in the dirt path with pebbles and installed solar powered lights along the walkway. They look so pretty at night! We also bought a bird feeder and hung the metal art from Ran's Uncle Jay. The bird feeder has, expectedly and sadly, turned into a squirrel feeder. Any suggestions on how to prevent these bird bullies from eating all of our seed?

Before shot from last fall.