Me pēnei te tohu i te whārangi:
Vanessa Wintle and Stacey Lepper, 'Ngā whakaahua, ngā rauemi katoa', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/poultry-industry/media (accessed 24 April 2024)
He kōrero nā Vanessa Wintle and Stacey Lepper, i tāngia i te 24 Nov 2008