>>Jamie Strange at Univ of Washington found the easiest was to walk around listening up. That's a lot of acrage to cover which is especially not easy to do in dense suburbia where you can't walk across anybody's property and are restricted by fences and street layouts. I was hoping to learn an easier way of doing drone-lining. :) Waldemar ****************************************************** * Full guidelines for BEE-L posting are at: * * http://www.honeybeeworld.com/bee-l/guidelines.htm * ******************************************************