Birds Eating Wasps
A flock of birds converging on a muddy nest of wasps found on a home in the village of Chmeľová, Slovakia.
Their ability to hold onto the imperfect concrete surface is quite amazing, as is what happens to the wasp nest long after it has been raided and abandoned: It's turned into a birds nest for the eggs/chicks.
Craig Heimburger | travelvice.com
September 20th, 2008
Martin, my current host in Romania, informs me that these are likely swallows, and that the muddy nest that I'm seeing is not that of wasps, but built by the birds themselves. I believe I stand corrected on this.