This species includes three genetically distinct groups, two of which overlap in range in Colorado. The calls of the three genetic groups are very distinctive. The Eastern White-breasted Nuthatch tends to have a higher pitched call, while the Rocky Mountain's call is lower pitched. Oftern the Rocky Mountain birds have a disyllabic call, while Easterns often utter a series of single "quanks". Learn to distinguish between the calls of the Eastern and Rocky Mountain types by studying Nathan Pieplow's excellent three part series. Then test your new found skills with this quiz.
Click the play button to listen to the audio file. Select your answer using the radio buttons. The result of your answer will be presented to you. Move through the quiz using either the next buttons or the arrows at the top of the page.