1957 Calyptra anna Aug 4 Quercus Rd., Berkeley, Calif rising into the air about 2 feet. During this clash, the only note heard was the deep note of the young male, given two times in quick succession. Later three hummers, including ♂1 were involved in a melee & chase which let SE ward, upslope, into eucalypts. Two perched on wire about 3 feet apart, a third (m.8 or ?) also came along and momentarily perched on the wire about 8 feet to one side of the pair. Then took off approaching the last two, these began a chase the last followed immediately, further from & weaving, and a twisting path with intermittent chatter. Aug 4 ♂1 observed, in the course of chases on NW side of house where area of ♂2 located, to swing through a broad arc up mid air about 30 feet above the ground, look down momentarily, than drop to his territorial perch. The mid-air pose was similar to that often preceding a dive. Aug 6- An immature male (in song occasionally), but still to enter the main part of the molt, located this morning Quercus thicket, same site as used earlier by ♂2 (above).