What animal or insect makes this kind of
We have an animal or insect that makes the most amazing string structures. We would like to know what is capable of this. The structure starts at the top of a tree and zig zags down about 12 feet. At this point a finer string shoots out about 45 feet across the yard to another tree where it zig zags up to the top of that tree. The horizontal part is about 20 feet off the ground. This is the second one we have noticed this summer. We live in Springfield, MA. I have some photos of it here
http://picasaweb.google.com/MATetreault/20100801
Picasa Web Albums - Mark - 2010-08-01
Any help would be greatly appreciated. It amazes me that the string shoots out horizontal for a long distance. Something that flys?