William Thompson, The Natural History of Ireland… (1849)
“ In contour, bill, eyes, legs, &c, it is a miniature of the golden eagle, but about one-third less than a male of that species ; except the tail-coverts and some spots on the wings and breast, it is entirely of a very deep glossy blackish- brown : the body is of small size, comparatively with the head, wings, and tail. ”
