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These two photographs, taken by Tanner in 1938 and published in his dissertation, have not been otherwise widely disseminated or (to the best of my knowledge) reprinted elsewhere. Each is interesting in its own right, and not just because they add to the small body of indisputable ivorybill imagery; the first shows the behavior of a near-fledgling (Sonny Boy) in the nest and the second for the position of the male’s crest, which is more recurved than in most or all other stills. Another series of rare images is here. Images are Courtesy of the Division of Rare and Manuscript Collections, Cornell University Library. 
