think this is it: http://link.springer.com/article/10.1007/s00265-015-1958-1 http://link.springer.com/article/10.1007/s00265-015-1958-1 it's hidden behind a p

think this is it: http://link.springer.com/article/10.1007/s00265-015-1958-1 http://link.springer.com/article/10.1007/s00265-015-1958-1 it's hidden behind a paywall. Yay!