Recorded September 20, 2011 at the Lee & Rose Warner Nature Center in Marine on St. Croix Minnesota. Our director first noticed this last week and at the time the comb was white. It has since turned yellow as you can see in the video. It is also interesting to watch at the end when a tree branch pushes up against the comb. It moves it around a puts a dent in it.
About the Site:
Kirk Mona is the founder of Twin Cities Naturalist.
He is a professional naturalist and writer.