I keep my feeders out year round. It is the best way to observe the regulars and spring/summer visitors.
We bring our feeders in once the buds begin to pop out but that is mainly because of our high pigeon population. We just placed our hummingbird feeders out today.
I know they have to eat too but they make it impossible to sit on our deck or backyard, unfortunately. We still get lots of small visitors to our trees and they enjoy the berries on the Weeping Cypress and sit in the silk lilac and hedges.