Seed_eating birds that can be attracted to feeders include pine siskins, sparrows, grosbeaks, redpolls, and crossbills. These species also eat suet, but seeds will attract them to your feeder. Unsalted sunflower seeds, thistle seeds, raw crushed peanuts, millet, scratch feed, various wild grains, and canary seeds are welcomed. Commercial wild bird seed mixes can be used, but they often contain filler seeds that are not eaten by many species. Often, you can mix your own "wild bird food" more economically. Seeds can be purchased from local feed, variety, and pet stores, or ordered from catalogs. When you first start your feeder, experiment with various seeds and find out which are preferred by the birds in your area.
Those of us interested in wildlife can help avoid conflicts, which always end up with the moose or bears as the losers. To protect wildlife and keep problems from arising, either locate feeders out of reach of moose and bears, or put up feeders after bears are hibernating (Nov. 1) and take them down before bears begin to wake up in spring (mid_March). Don't feed birds in any way that will harm them. Keep feeders clean, and clean up the area on the ground around feeders that may attract other wildlife species to feeders.