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Forty one acoustic
encounters
Seven observers among the twelve who visited the site for at least 48
hours between May 2005 and April 2006 heard either double knocks or
kent calls, and observers detected these signature sounds of ivorybills
on 41 separate occasions during this period including as many as 50
kent calls and 45 double knocks during single encounters. Kent
calls or double knocks were heard in May and December 2005 and January,
February, March, April, May, June, and July 2006.
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