Great Blue Heron

Adult: (shown below) Grey overall, very hard to see along rocky shorelines. Long yellow bill, white crown, head and face with black plumes 1/4 inch down from head to neck. Pale colored neck with shaggy'ness down chest.

Juvenile: (shown below) Grey overall, very hard to see along rocky shorelines. Long yellow and black bill. Black crest with NO PLUMES. Dark black and white neck and chest.