Here's a more scientific look at the behavior: John Marzluff & Tony Angell: Gifts of the Crow (2012) Video: https://archive.org/details/scm-67314-johnmarzluff

Here's a more scientific look at the behavior: John Marzluff & Tony Angell: Gifts of the Crow (2012) Video: https://archive.org/details/scm-67314-johnmarzlufftonyangellgiftsoft https://archive.org/details/scm-67314-johnmarzlufftonyangell... Book: http://books.simonandschuster.com/Gifts-of-the-Crow/John-Marzluff/9781439198742 http://books.simonandschuster.com/Gifts-of-the-Crow/John-Mar...