Arthur A Allen
Peter Paul Kellogg
10 Jul 1954
- Delta; Delta Waterfowl Research Station
CAPTIVE BIRD WITH CYGNETS.
ML: Because Whooper and Trumpeter Swans were both recognized under Cygnus cygnus in the LNS collection at this time and that this recording represented captive birds not identified to subspecies, it is unclear whether C. [c.] cygnus or C. [c.] buccinator was involve here d. (CAM - 27 October 2004.)