Beyond supplying food, native shrubs and trees are also necessary for shelter and nesting. While birds are adaptable, they’re going to seek out the places their instincts recognize, and those are the places that will evolve to accommodate them year-round. 

"If you have a forested area in your yard, leave dead branches and snags that provide nesting places for woodpeckers, as well as other cavity-nesting species such as chickadees, titmice, wrens, and bluebirds," says Winston. "Include native evergreens to supply important shelter from the cold."