On April 13th a pair of Loons were observed on Lake Manitou making their distinct calls. A day later, at least 15 more Loons were observed swimming together and resting up before continuing their journey. They are avid divers that eat small fish. This is only a temporary stop over as they make their way to quiet and secluded northern forest lakes. https://youtu.be/Hnlze_cIYZs
If you are interested in learning more about birds and their distinctive calls and songs, visit http://cams.allaboutbirds.org/ . At the website you can search a wide variety of birds.