280B (2006 RB)

The Orcalab recording 280A starts at 11:11 on August 21, 2006.  The A5 and A4 pods of the northern residents were heard rubbing on the pebbles at Main beach at 11:40, until the end of the tape 11:56.  A total of 44 discrete calls were identified and analyzed; N3 (6%), N4 (54%), N5 (10%), and N9 (30%).