Trumpeter swan The tundra swan ("C. columbianus") more closely resembles the trumpeter, but is significantly smaller. The neck of a male trumpeter may be twice as long as the neck of a tundra swan. The tundra swan can be further distinguished by its yellow lores. However, some trumpeter swans have yellow lores; many of these individuals appear to be leucistic and have paler legs than typical trumpeters. Distinguishing tundra and trumpeter swans from a distance (when size is harder to gauge) can be challenging without direct comparison but it is possible thanks to the trumpeter's obviously longer neck (the great length of
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