Bitterns, Herons, and Egrets of Pennsylvania 

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Bitterns

American Bittern

Least Bittern

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Herons

Great Blue Heron

Tricolored Heron

Little Blue Heron

Green Heron

Black Crowned Night Heron

Yellow Crowned Night Heron

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Egrets

CattleEgret

Snowy Egret

Great Egret