Trumpeter swan Michigan turned this line northwards, placing a hypothetical eastern boundary up through Ontario to western Quebec and the eastern shore of James Bay. In 1984, Harry G. Lumsden posited that trumpeter swans may have been extirpated from eastern Canada by native people armed with firearms prior to the arrival of European explorers and noted archaeological remains of trumpeter swans as far east as Port au Choix, Newfoundland dating to 2,000 BCE. He cited historical observer records of what must have been breeding trumpeters, such as Father Hennepin's August report of swans on the Detroit River from Lake St. Clair to
Trumpeter clock were very simple in design, producing a simple bugle call that is reproduced once for each hour. In the later years the musical abilities of the clocks greatly improved, and many examples were made to produce complex musical tunes. Although many different makers made the trumpeter clocks, Emilian Wehrle was without question the undisputed leader of trumpeter clock production and design. A trumpeter clock can be found in several different variations. The most common examples are known to collectors as a "blowers" or "German buglers". These examples use a modified cuckoo type movement that produces a simple trumpet like call.