I have three big nests outside my house in New Haven. All I know, is that I spend a gazillion hours cleaning my car, which, if parked in the wrong place, can often be referred to as the "guano mobile". Then there was the time one poor guy from the colony fried himself on the transformer outside the house, set the pole on fire and shut down the power to the whole neighborhood for hours. I also like spending time cleaning up thousands of little sticks after a storm blows one of the nests out of their tree into my yard. Love that! As Kermit the Frog used to say "It's not easy being green". But exterminate 'em..I don't think so. Julian Hough New Haven, CT 06519 www.naturescapeimages.wordpress.com