E. Donovan, The Naturalist's Repository, Volume 1…
“ This conspicuous band is formed by the secondary quill feathers, which being of a fine yellow, with the ends a lively blue, appear like two distinct bands, and from their gaiety of colouring are admirably relieved by the deep sable hues of the wings and back. In the bird before us the black colour of the back extends nearly to the tail, the ends of the tail coverts only being green. ”
