Sound recording of an example Alarm Hoo (AH).
Schel A, Townsend S, Machanda Z, Zuberbuhler K, Slocombe K
CC BY 2.5
Audio S2 from <cite style="font-style:normal">Schel A, Townsend S, Machanda Z, Zuberbuhler K, Slocombe K (2013). "<a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3797826">Chimpanzee Alarm Call Production Meets Key Criteria for Intentionality</a>". <i>PLOS ONE</i>. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371/journal.pone.0076674">10.1371/journal.pone.0076674</a>. <a href="https://en.wikipedia.org/wiki/PMID" class="extiw" title="w:PMID">PMID</a> <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pubmed/24146908">24146908</a>. <a href="https://en.wikipedia.org/wiki/PubMed_Central" class="extiw" title="w:PubMed Central">PMC</a>: <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3797826">3797826</a>.</cite>