I have been to a lot of wetlands during all times of the year during the last six years. But until today, I have never seen a Heron stand in this position.
There were three or four female Herons standing in a similar way. I can post a couple more photos if anyone wants.
What I believe is a female in each case standing on the north edge of the nest functioning as a reflector? to get heat into the nest?
That is the only thing I can figure out. Who is our resident ornithologist?