Winter is a quiet season for birds in Alaska. Most migrate south to wintering areas in the Lower 48, Mexico, South America, and Polynesia. But, some species remain in Alaska through the winter. Even in the northernmost regions of Alaska, some ravens, snowy owls, and gyrfalcons remain, and offshore, murres and a few gulls linger near openings in the pack ice. Over 25 species endure the harsh winters of interior and western Alaska, and over 100 stay through the milder coastal winters of southcoastal and southeastern Alaska.
Be sure young birds will be able to leave the nest. Roughen the inside of the nest box below the entrance hole or attach a sheet of 1ǚ_inch galvanized wire mesh, so fledging young can climb out easily. Provide woodpeckers, waterfowl, and owls with nest material. Many cavity_nesting birds will add their own nest material, but the woodpeckers, waterfowl and owls prefer nest boxes with 2ι inches of dry sawdust or woodchips in the bottom.