Hi Peter & all As a long time user of OMF (25 years+) I am always interested to read articles on the topic. The one of Peter's... http://www.stratford-upon-avon.freeserve.co.uk/Newsletters/September2005.htm contains the following... " I think they also help with finding queens, as I have never yet found a queen on a mesh floor." I have never considered this myself, but I like to think that I am a good 'observer', I certainly can't recall any incident whereby a queen was observed on a mesh floor screen. So can I ask this list for any observations ? Regards & Best 73s, Dave Cushman, G8MZY http://website.lineone.net/~dave.cushman or http://www.dave-cushman.net Fall Back M/c, Build 6.02 (stable) -- Visit www.honeybeeworld.com/bee-l for rules, FAQ and other info ---