'The Selways were introduced [...] neither as prospectors who struck lucky nor as ambitious farmers. Arriving in the country in the 1870s their one aim was to amass capital and get back to the old country leaving an unfriendly climate and alien society behind for ever. But it is never quite possible for them to leave; and as their plans for return are pushed further and further into the future, the sound of a mocking bird drives home the title's meaning.
'The episode is solidly constructed to convey information about the management of land. Jack Selway arrives in Sydney and promptly falls into the hands of a group of profiteers who dispatch him into the bush to take charge of a smallholding. His belief that they have treated him generously is soon exploded; he learns that he has been made a "dummy" in a campaign against a "squatter".'
Source:
'Clarity in Saga of Australia', The Times, 26 January 1959, p.6.