https://ceb.wikipedia.org/wiki/Gorsachius_melanolophus
Gorsachius melanolophus - Wikipedia
wikipedia
https://davesbirdingdiary.blogspot.com/2014/11/white-backed-night-heron-gorsachius.html
DavesBirdingDiary: White-Backed Night Heron ( Gorsachius leuconotus )
night heronwhitebacked
https://www.lautarchiv.hu-berlin.de/objekte/stichworte/16347/
Gorsachius magnificus
magnificus