29 Aphelecoma Sept. 1 1 mi SW Prisoner's Harbor, Santa Cruz 1. Large group of jaup, including 3 or 4 adults and perhaps a half dozen first-year birds, was observed moving along a slope, back and forth, over an area apparently regularly inhabited by an established pair. Several chases were noted, also two actual clashes, one of them resulting in screaming from the group. Entire group very active and noisy. The entire sequence in all essentials resembled several such sequences noted in the Berkeley Hill jaups (see Canyon Road notes). The frog note seems to be given by the ♀ when the ♂ calls kra-kra-kra excitedly. This was observed in this sequence described above, in the morning, and also later when a pair was found on the NW facing slope, the male flew down slope calling and the ♀ frog-noted at once, ending the note with [illegible] inflected notes, ike-ike.