purple heron (Ardea purpurea) Ardea purpurea
Source: http://www.biologie.uni-hamburg.de/b-online/birds/1617_39.htm
aus: NAUMANN : Naturgeschichte der Vögel Mitteleuropas, Band VI, Tafel 21 - Gera, 1897 digitale Bearbeitung : Peter v. Sengbusch - b-online@botanik.uni-hamburg.de
Naumann, Naturgeschichte der Vögel Mitteleuropas. 3. Aufl. Neubearb. von G. Berg et al. Hrsg. von Carl R. Hennicke. (Naumann, Natural history of the birds of central Europe, 3rd Ed. Revised by G. Berg et al.; Edited by Carl R. Hennicke.) of 1905 or his earlier works.
Source: https://commons.wikimedia.org/wiki/File:Ardea_purpurea.jpg
The purple heron (Ardea purpurea) is a wide ranging species of wading bird in the heron family, Ardeidae. The scientific name comes from Latin ardea "heron", and purpureus, "coloured purple". It breeds in Africa, central and southern Europe, and southern and eastern Asia.