Attributes / relations provided by
♦ 1O'Donnell, Colin F J and Dilks, Peter J,
Foods and Foraging of Forest Birds in Temperate Rainforest, South. Westland, New Zealand, NZ J Ecology 18(2) (1994) pp. 87-107
♦ 2Comparative ecology of sympatric orange-fronted parakeets (Cyanoramphus malherbi) and yellow-crowned parakeets (C. auriceps), South Island, New Zealand, Jonathan C. Kearvell, James R. Young and Andrew D. Grant, New Zealand Journal of Ecology (2002) 26(2): 139-148