BUCEROS HYDROCORAX (L)
(Vulg) CALAO.
E. Serrano

Date 1885
Source http://www.flickr.com/photos/biodivlibrary/15937177132
Author Ramōn Jordana y Morera.
Full title Bosquejo geográfico é histórico-natural del archipiélago Filipino por Don Ramon Jordana y Morera ... Publicado de real órden en vista del favorable informe de la Real academia de ciencias exactas, fisicas y naturales.
Source: https://commons.wikimedia.org/wiki/File:Bosquejo_geogr%C3%A1fico_%C3%A9_hist%C3%B3rico-natural_del_archipi%C3%A9lago_Filipino_por_Don_Ramon_Jordana_y_Morera_(15937177132).jpg

The rufous hornbill (Buceros hydrocorax), also known as the Philippine hornbill and locally as kalaw (pronounced kah-lau), is a large species of hornbill. It is endemic to the Philippines.