This video from New York state in the USA says about itself:
22 August 2016
A Great Blue Heron spent its Monday morning wading in the pond of the Feeder Garden. You can observe it moving stealthily along the pond’s edge in the backdrop of the bustling activity of the Cornell Feeder Watch Cam!
Watch LIVE at http://AllAboutBirds.org/CornellFeeders for news, updates, and more information about the pond and its surroundings.
This FeederWatch cam is located in the Treman Bird Feeding Garden at the Cornell Lab of Ornithology. Perched on the edge of both Sapsucker Woods and its 10-acre pond, these feeders attract both forest species like chickadees and woodpeckers as well as some species that prefer open environments near water like Red-winged Blackbirds.