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Publication . Article . 2011

Putative audio recordings of the Ivory-billed Woodpecker (Campephilus principalis)

Michael D. Collins;
Published: 01 Mar 2011 Journal: The Journal of the Acoustical Society of America, volume 129, pages 1,626-1,630 (issn: 0001-4966, Copyright policy )
Publisher: Acoustical Society of America (ASA)

Putative audio recordings of the Ivory-billed Woodpecker (Campephilus principalis) are presented along with discussions of the videos from which they were extracted and the observations that were made when these data were obtained. On two occasions, high-pitched calls were heard coming from the direction of a bird that was identified in the field as an Ivory-billed Woodpecker. These calls seem to match the description of an alarm call that was reported in the 1930s. One of the videos captured a series of the high-pitched calls, which sound similar to the Blue Jay (Cyanocitta cristata) bell call but do not match published sonograms of that call. A putative double knock, which is characteristic of the Ivory-billed Woodpecker, was captured in another video a little over a minute before a large bird with characteristics consistent with an Ivory-billed Woodpecker flew into view. Since it is extremely difficult to observe this critically endangered species, information on audio clues could have an impact on its conservation.

Subjects by Vocabulary

Microsoft Academic Graph classification: Cyanocitta biology.organism_classification biology Acoustics Ivory-billed woodpecker Endangered species Geography Video recording Campephilus Sound recording and reproduction Critically endangered Woodpecker Cartography


Acoustics and Ultrasonics, Arts and Humanities (miscellaneous)

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