...I have also caughtthem preparing and eating sea gulls, terns, blue heron, egret andeven the bittern... 
William T. Hornaday 「Our Vanishing Wild Life」
...Cory's Least Bittern...
Chester A. Reed 「The Bird Book」
...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」
...125 Australian Bittern (Black-backed), Boomer, Bull-Bird...
John Albert Leach 「An Australian Bird Book」
...TheAmerican Bittern nests on the ground and lays three to five palebrownish eggs...
Frank M. Chapman 「Color Key to North American Birds」
...Bewick has put his utmost skill into it; and the cut, with the Bittern and White Owl, may perhaps stand otherwise unrivaled by any of his hand...
John Ruskin 「Love's Meinie」
...Least Bittern...
Harrison B Tordoff 「Check-list of the Birds of Kansas」
...The Bittern is remarkable for its loud boomingcry which has some resemblance to the bellowing of a bull,and for its spiral flight which it pursues to a great altitude...
Various 「Natural History in Anecdote」
...We no longer heard the discordant shriek ofthe parrots, or the hoarse croaking note of the bittern...
Charles Sturt 「Expedition into Central Australia」
...--The Bittern...
Charles Sturt 「Expedition into Central Australia」
...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」
ランダム例文：
scant initiative grounder
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