- found: Fisher, J. Wildlife in danger, 1969.
- found: Web of experience, 1988: t.p. (Jack Vincent) p. 1 (b. Mar. 1904)
- found: Information from 678 converted Dec. 16, 2014 (Represents the International Council for Bird Preservation)
- 1981-08-11: new
- 2014-12-16: revised