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List of works by Ralph Graham Powlesland

A study of the relationship between the starling Sturnus vulgaris and the haematophagus mite Ornithonyssus bursa

1976 master's thesis by Ralph Graham Powlesland at Massey University

A time-budget study of the South Island robin Petroica australis australis at Kowhai Bush, Kaikoura ⬇️

1980 doctoral thesis by Ralph G. Powlesland at University of Canterbury

Breeding biology of the Kakapo Strigops habroptilus on Stewart Island, New Zealand

article

Conservation status of New Zealand birds, 2008 ⬇️

scholarly article published in 2008

Diet of the Stewart Island brown kiwi (Apteryx australis lawryi) at Scollay's Flat, southern Stewart Island

scientific article

Number, fate, and distribution of kakapo (Strigops habroptilus) found on Stewart Island, New Zealand, 1979–92

article

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