I was taxiing down to the end of 20 at Nelson airport down here in NZ, ATC - XXX Taxi to hold point echo caution gyro copter at charlie (i think)ME - Holding echoATC - XXX are you ready to departI tak a look down the runway and see the bright orange gyro copter about 100ft off the end of the runway, it was like the bloke was pedalling, and forgetting good RT i repliedME- XXX ready to go as soon as....err 'that thing' gets out of the way.ATC - XXX 'That Thing' will be turning starboard shortly cleared for take off 20The gyro copters radio was barely readable by me so it was probably just as well i didn't hear his next transmission but i did catch the word 'Thing'