by William Swainson

“ The species are much more numerous then is imagined, but they are, perhaps, less understood than those of any one group of Ornithology. Males of different species are classed as the same, while their females are considered as distinct. The number enumerated in the last edition of the Synopsis of Birds as inhabiting all South America, is six; but we possess eight species from Brazil alone; besides several others, which it is impossible to identify from books.
The Mexican Trogon was first described by us, from a bird, which we felt assured was a female ”