Footprints believed to have been made by the giant bird Diatryma indicate that it was a “gentle herbivore” and not a fierce carnivore.

http://www.bbc.co.uk/nature/20413665

http://onlinelibrary.wiley.com/doi/10.1111/j.1475-4983.2012.01195.x/abstract?isLogout=true

P.S. Note, the title of the original paper (Giant Eocene bird footprints from Northwest Washington, USA) gives no indication of *what* is the significance of the footprints, a similar case that was discussed in Kurten club during Mikko’s last news flash…

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Laura