...This small variety of Bittern is very commonin the southern portions of the United States, butless so and locally distributed in the northernportions of its range... 
Chester A. Reed 「The Bird Book」
...It is very different from the Least Bittern,having a more uniform chestnut coloration, especially on the under parts...
Chester A. Reed 「The Bird Book」
...
A booming bittern I know sits hour after hour, almost every day insummer, year after year, on a dark, decaying pile of an old dock inthe creek...
Neltje Blanchan 「Birds Every Child Should Know」
...The Least Bittern usually weaves a platform nestof reeds among rushes growing in the water and lays four or five bluishwhite eggs...
Frank M. Chapman 「Color Key to North American Birds」
...Van Tyne and Sutton (1937:14) saw two representatives of this bittern "along the Río Grande not far from Hot Springs," Texas, on May 15...
Emil K. Urban 「Birds from Coahuila, Mexico」
...American Bittern...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...At last comes the summer truce andhappy days of peace in the tangled jungleof the marsh, with the wild duckand bittern nesting beside his waterypath, the marsh wren weaving her rushybower above it...
Rowland E. Robinson 「In New England Fields and Woods」
...Yet what she loses on one side shegains on another; she is like that least bittern Mr...
John Burroughs 「Ways of Nature」
..., his story of a least bittern, ...
John Burroughs 「Ways of Nature」
...On our first arrivalat the Depot there was a bittern, Ardetta flavicollis, that frequentedthe creek in considerable numbers...
Charles Sturt 「Expedition into Central Australia」
...--Spotted Bittern...
Charles Sturt 「Expedition into Central Australia」
...--The Bittern...
Charles Sturt 「Expedition into Central Australia」
...We no longer heard the discordant shriek ofthe parrots, or the hoarse croaking note of the bittern...
Charles Sturt 「Expedition into Central Australia」
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