Abstract:
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(En)
Dimensions of the nest hollows selected by the various species overlapped considerably indicating a potential for interspecific competition for nest sites. The most successful breeding species was the Port Lincoln parrot with an overall breeding success of 75 per cent. Corresponding figures for the other parrots were western rosella 72 per cent, regent parrot 63.5 per cent and red-capped parrot 27.1 per cent. The comparative development of the body characteristics of the nestling parrots is described and
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