Birds Of The World:
The Night Herons
American Black Heron
The American Bittern (b. Lentiginosus)
The Hammeróhead, Or Umbrette
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( Originally Published Early 1900's )
Very similar to this species is the Japanese Stork (C. Boyciana) of eastern Siberia, Korea, and Japan, though it is much larger and has the bill horn-black instead of red, and the spot around the eye vermilion-red instead of black.