While we’re still shoveling snow and scraping windshields, bluebirds are thinking about spring. Colorado has three species of bluebirds, Eastern, Western (seen here) and Mountain, and all of them are what birders call “early nesters.”
Why do they arrive here so early in the year? Maybe it’s because they don’t travel very far for the winter. While other kinds of thrushes migrate to central America, bluebirds tend to stick closer to home.
Bluebirds living in the southern parts of the United States stay there year-round. Western Bluebirds from harsher climates winter along the Pacific coast or in the dry scrubland of the Southwest and Mexico. A few stay in Colorado.