Keywords: CrinigerVerreauxiKeulemans.jpg Criniger verreauxi Criniger calurus verreauxi Red-tailed Bulbul ssp Catalogue of the birds in the British Museum Volume 6 1881 Creator John Gerrard Keulemans PD-old-100 Catalogue of the Birds in the British Museum John Gerrard Keulemans Criniger calurus |