In addition to distinct belly coloration, Burke researchers found that species east and west of the North Cascades are genetically different.
Do bird populations living on different mountain ranges evolve independently of one another?
A rare Asian songbird was far off course last December when it fatally struck a window on Lopez Island.
A study of the seasonal environmental changes influencing when Washington state birds breed and how many eggs they lay.
Graduate student Ethan Linck reflects on his first scientific collecting trip with the Burke ornithology team.