Robert C Stein
Martin C Michener
11 Jun 1958
- J. Clark Salyer Nat. Wildlife Refuge
- MAGNEMITE UNSPECIFIED MODEL
- Parabola 101.6cm (40in)
NOTES: UPHAM, NORTH DAKOTA. TREE IN YARD OF REFUGE HEADQUARTERS. ALARM NOTES AT NEST.
[These are mostly "Repeated Vocalizations" but with several instances of "Chatter Vocalizations" (0:36-0:40, 0:44-0:49, 1:06-1:13) and a few examples of the "Incipient Locomotory Hesitance Vocalizaton" (0:21, 0:22, 0:56). Terminology follows BNA and W. J. Smith (1966. Communications and relationships in the genus Tyrannus.Publ. Nuttall Ornithol. Cl. 6). Quality changed from 2 to 2-3 (rumble that may be wind on microphone and some vocalizations may be overloaded) - CAM - 7 January 2005]