Most of us have seen Great Blue Herons in the Hudson area. We might have seen or heard Green Herons, their smaller cousins.
We are less likely to see Black-crowned Night Herons because they forage in the evening and at night. So, even if they are in our area, we might not see them. These medium sized herons have a stocky build, relatively short legs and bright red eyes.
Why do they forage at night? It allows them to coexist with other species of herons. Here is a Black-crowned Night Heron photographed this week at Cooper Marsh.