by William Swainson, Zoological Illustrations Series II… (1829)
“ Naturalists, until of late, were accustomed to pay so little regard to the habits and manners of birds, that of some of the most common species, we know as little now, as we did a century ago. We are in this predicament with the species before us, called the Dial Bird by Albin, whose vague and very questionable account of its manners, has been copied by every succeeding writer. We believe that under the name of Gracula Saularis, two, if not three species are confounded. ”
