Johannes Gerardus Keulemans was a Dutch bird illustrator. For most of his life he lived and worked in England, illustrating many of the best-known ornithology books of the nineteenth century.
An illustration of the extinct great auk by Keulemans
The forest wood hoopoe is a species of bird in the family Phoeniculidae. It is found in Cameroon, Central African Republic, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Ghana,
John Gerrard Keulemans
…bases, but against its pretensions as a science based on demonstrable fact. List of major works to which Keulemans contributed Irrisor jacksoni and Scoptelus castaneiceps The following are cited in Keulemans & Coldewey's Feathers to Brush (unless noted with an asterisk). Annales des Sciences Naturelles. (one volume…