
As one of the more specialized birds of Iowa’s wetlands, the American Bittern is known to many Iowans although few have ever seen or heard one. With its brown streaked plumage and conspicuous black chin stripe, the bittern is a classic example of a species with cryptic plumage that blends in with its environment. The behavior of the bittern also complements the plumage. When disturbed, a bittern typically extends its head and bill skyward, allowing the streaking on its body to blend in well with its surroundings. Most people know the bittern better for its loud, “slough-pump” call that it gives, even though they seldom see the bird. Once found in wetlands and wet meadows throughout Iowa, American Bittern are more restricted in their range, being mainly found on wetlands in northern Iowa.
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