 Having lost the ability to fly , it has developed strong legs . Movement is often by way of a rapid " <unk> @-@ like " gait by which it can move many kilometres . A female has been observed making two return trips each night during nesting from her nest to a food source up to 1 km ( 0 @.@ 6 mi ) away and the male may walk from its home range to a mating arena up to 5 km ( 3 mi ) away during the mating season ( October – January ) . 
