Marshall, 1939 46. Otus flammeolus yoemite, July 20, 1939 behavior due to curiosity aroused by the lights & calls. (A horned owl was calling far away the whole time.) The procedure was as follows: I would leave the owl while it still called—would walk silently about 100 yds or more then begin to shoot. Immediately the ♂ would become silent. In 15-30 sec., a rustling would be heard in a tree above my head & in as long an interval more the ♀ would begin to answer. This ♂ was led thus for at least a mile thru the fairly heavy timber of this canyon. Then the trail rounded an open, granite, south-facing knoll, sparsely covered with manzanita, and (an occasional stunted red fir or sierra juniper—very open; trees about 50 yds. apart) The owl readily followed us, even in this