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[[File:Egret.jpg|300px|thumb|centerleft|''Picture of whole egret including its beak found on endoscopy January 2014 and released shortly thereafter back into the wild'']]
The '''bird's beak''' refers to not only one but two findings in patients with achalasia. Classically, a '''bird's beak''' appearance is noted along with a dilated esophagus on barium swallow. The lesser known but truer '''bird's beak''' is when upper endoscopy reveals an actual '''bird's beak''' and sometimes a whole bird's head lodged at the [[GE Junction|GE junction]] thus causing dysphagia and regurgitation.
