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[audioplayer:77771|align:left|caption:Calls of the American bittern.]
You鈥檙e listening to one of the most peculiar and memorable of all North American bird voices. This bird鈥檚 deep, resonant calls have earned it the nicknames 鈥渢hunder-pumper鈥 and 鈥渟take-driver.鈥
Its name in the bird book? American bittern. Medium-sized cousins of herons, American bitterns spend most of their time in dense marshes, out of view. In fact, bitterns are so well camouflaged in shades of brown, and so stealthy, that they can be hard to spot even when out in the open. Their 鈥渦ngodly鈥 calls, most often heard during the breeding season, led to an Old Testament connection of bitterns with evil and desolation. As recently as 1786, a group of Connecticut men met to rid nearby marshes of the accursed bittern.
Fortunately, the American bittern has outlived the folklore about its evil nature. Bitterns nest in marshes throughout much of Canada, and they winter along both US coasts south into Central America. But bitterns are in serious trouble as breeding birds in the US, because much of the extensive, shallow marshland they once bred in has been drained or degraded by pesticides and silt.
Expansive and healthy freshwater marshes are crucial to the bittern鈥檚 continued welfare, and to a natural world that includes its remarkable voice.
Call of the American Bittern provided by The Macaulay Library of Natural Sounds at the Cornell Lab of Ornithology, Ithaca, New York. Recorded by S.R. Pantle
Producer: John Kessler
Executive Producer: Chris Peterson
漏 2012 Tune In to Nature.org December 2012 Narrator: Michael Stein