We all love feeding the birds, but we don't want to attract bears and get them habituated to being around humans who inadvertently feed them with bird seed.
It might interest you to know that the man in the house below us attracted a bear who was bothering his feeder about 3 years ago. He got permission from the game warden and shot it. This year he had another bear and the game warden asked him if he had feeders out. He said that he brought them in at night. But, unfortunately bears always remember where they can get a good snack, even if it's just some bird seed scattered on the ground. That bear was killed too.
Now, to my way of thinking, this hardly seems fair to Bruin. First we attract him with delicacies, and then we kill him for hanging around. And even if we don't kill him, someone else might because he is becoming habituated to humankind and people find this a nuisance and they are afraid of him.
As much as I dislike bringing in my feeders, I do bring them by April 15th. This year I brought them in by April 5th because we had some unusually warm days. I wish I knew a better answer. But, I still see bluebirds, tree swallows (we have bird houses), phoebes, robins, chickadees, titmice, grouse, wild turkeys, flickers, sparrows, occasional woodpeckers, woodcock, etc.