Baldfaced Hornet - Dolichovespula maculata

In mid-August B went to St. Peter's Abbey in Muenster. I decided to tag along and check for bugs to photograph. As I was wandering around one of the many beautiful gardens I met Jim who was collecting seeds from some of the flowers that had finished blooming. He told me that he had seen some hornets on one of the sunflowers. I checked it out and found these hornets crawling around holes on the stalks. They seemed to like the frothy goo that was oozing out.