great blue heron
noun
Definition of great blue heron
: a large slaty-blue American heron (Ardea herodias) that has a dark crown, showy plumes on the head and neck, is about 46 inches (117 centimeters) long, and includes a white morph — see great white heron
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First Known Use of great blue heron
1835
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Britannica.com: Encyclopedia article about great blue heron
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