The herons were quite active this evening. These are screengrabs from 4k videos.
Some poorer quality pics:-

Here is an image from the Olympus EM1 to show the comparison. The heron in this image is about 3 feet to the right of the heron in the image above. The water level has dropped about a foot between the two images.

Another imagetaken withth EM1 and 100-400mm lens.
