?url_ver=Z39.88-2004&rft_id=10.1006%2Fanbe.1996.0190&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Ferriere%2C+R.&rft.aulast=Ferriere&rft.aufirst=R.&rft.issue=3&rft.volume=52&rft.date=September+1996&rft.issn=1095-8282&rft.atitle=Predictability+and+chaos+in+bird+vigilant+behavior&rft.title=Animal+Behaviour&rft.pages=457-472&rft.genre=article