A monograph of the Bucerotid, or family of the hornbills..[London]Published for the subscribers by the author [printed by Taylor and Francis]1882..biodiversitylibrary.org/page/38534633
A monograph of the Bucerotid, or family of the hornbills..[London]Published for the subscribers by the author [printed by Taylor and Francis]1882..biodiversitylibrary.org/page/38534641
A monograph of the Bucerotid, or family of the hornbills..[London]Published for the subscribers by the author [printed by Taylor and Francis]1882..biodiversitylibrary.org/page/38534637
Silvery-cheeked Hornbill (Bycanistes brevis) in captivity at Niagara Falls Aviary, Ontario, Canada. Photographed on 24 June 2010.The species is native to Africa.www.inaturalist.org/observations/55847033
A monograph of the Bucerotid, or family of the hornbills..[London]Published for the subscribers by the author [printed by Taylor and Francis]1882..biodiversitylibrary.org/page/38534629
Description: A Silvery-cheeked Hornbill (Ceratogymna brevis) kindly pauses for a photo op, letting me capture his formidable bill and bushy eyebrow feathers bill head-on. Bahir Dar, Lake Tana, Ethiopia. Date: 26 October 2007, 07:49. Source: Silvery-cheeked Hornbill, Ethiopia Uploaded by Elitre. Author: A. Davey from Where I Live Now: Pacific Northwest.