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
Silver-throated bushtit "Mecistura glaucogularis". He specified the type locality as Shanghai. As Gould's work appeared in print in 1855 before the publication of the proceedings of the Zoological Society, under the rules of the International Code of Zoological Nomenclature Gould's publication has priority. The name "glaucogularis" combines the Latin "glaucus" "glaucous" and the New Latin "gularis" "throated". The silver-throated bushtit was formerly considered a subspecies of the long-tailed tit ("Aegithalos caudatus") but the plumage is distinctive and there are significant genetic differences. Two subspecies are recognised: Silver-throated bushtit The silver-throated bushtit or silver-throated tit ("Aegithalos glaucogularis") is a species of bird in