References:

 http://designeranimals.wikispaces.com/Ancient+Animal+Moa
http://www.nzbirds.com/birds/moagiant.html
http://www.newzealandfauna.com/moa.php
http://nzetc.victoria.ac.nz/tm/scholarly/tei-TreRace-t1-body-d10-d2.html
http://en.wikipedia.org/wiki/Moa