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
Dark-winged trumpeter species: "P. viridis" between the Madeira and Tapajós rivers, "P. dextralis" between the Tapajós and Tocantins rivers, and "P. obscura" east of the Tocantins. The taxon "dextralis" can potentially be split further, with "interjecta" between Tocantins and Xingu, and "true" "dextralis" for the population between the Tapajós and Xingu. Dark-winged trumpeter The dark-winged trumpeter ("Psophia viridis") is a species of bird in the family Psophiidae. It is found in the Amazon rainforest of Brazil, but only south of the Amazon River and east of the Madeira River. The eastern range of dark-winged trumpeter extends into the lower adjacent Tocantins River