Years back (2002) I was looking out of a window watching this big spider in his web. Then I noticed that there was this mud dauber flying pretty close to the webbing. I was certain the mud dauber was going to get stuck in the web and become a meal for the spider. Wrong. Next thing I know the mud dauber lands on the spiders back, stings him, spiders legs retracted inward and the mud dauber pulled the spider off of the web and flew away. Pretty bad ass. These guys will pluck spiders out of webs and bring them back to their nests.... lots of them. All of those little cavities are stuffed with spiders.