The Green Heron is relatively small; adult body length is about 17 inches. The neck is often pulled in tight against the body. Adults have a glossy, greenish-black cap, a greenish back and wings that are grey-black grading into green or blue, a chestnut neck with a white line down the front, grey underparts and short yellow legs. The bill is dark with a long, sharp point. Female adults tend to be smaller than males, and have duller and lighter plumage, particularly in the breeding season. Juveniles (like this one) are duller, with the head sides, neck and underparts streaked brown and white, tan-splotched back and wing coverts, and greenish-yellow legs and bill. This little guy posed for me for about 15 minutes. I took this along the shore of Lake Telemark in Rockaway, NJ with my Nikon D3100 and the Nikon 70-300mm zoom lens.