Male hanging from his display perch on lek, flapping wings, and calling during peak mating season July 1971. Male is performing "staccato buzz", a rapid modulation of honking call performed to females when they hover near the male. Female can barely be seen on right of photo hovering to this male. Females visit multiple males (indicated by sequence of staccato buzzes along lek) and then select one for mating. Female ends copulation with loud squeals so matings are easily counted.