AUTHOR=Pika Simone TITLE=Response to: Commentary: The use of referential gestures in ravens (Corvus corax) in the wild JOURNAL=Frontiers in Ecology and Evolution VOLUME=4 YEAR=2016 URL=https://www.frontiersin.org/journals/ecology-and-evolution/articles/10.3389/fevo.2016.00121 DOI=10.3389/fevo.2016.00121 ISSN=2296-701X